vic
143 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
jianzhou
|
f41ab608b7 |
Merge android-4.9.145 (6328e64) into msm-4.9
* refs/heads/tmp-6328e64:
Revert "scsi: ufs: fix race between clock gating and devfreq scaling work"
Linux 4.9.145
kbuild: allow to use GCC toolchain not in Clang search path
kbuild: fix linker feature test macros when cross compiling with Clang
mac80211: ignore NullFunc frames in the duplicate detection
mac80211: fix reordering of buffered broadcast packets
mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext
mac80211: Clear beacon_int in ieee80211_do_stop
mac80211_hwsim: Timer should be initialized before device registered
kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()
tty: do not set TTY_IO_ERROR flag if console port
tty: serial: 8250_mtk: always resume the device in probe.
staging: rtl8712: Fix possible buffer overrun
cifs: Fix separator when building path from dentry
Staging: lustre: remove two build warnings
vhost/vsock: fix use-after-free in network stack callers
vsock: lookup and setup guest_cid inside vhost_vsock_lock
swiotlb: clean up reporting
sr: pass down correctly sized SCSI sense buffer
xhci: Prevent U1/U2 link pm states if exit latency is too long
dmaengine: cppi41: delete channel from pending list when stop channel
SUNRPC: Fix leak of krb5p encode pages
virtio/s390: fix race in ccw_io_helper()
virtio/s390: avoid race on vcdev->config
ALSA: hda/realtek - Fix speaker output regression on Thinkpad T570
ALSA: pcm: Fix interval evaluation with openmin/max
ALSA: pcm: Call snd_pcm_unlink() conditionally at closing
ALSA: pcm: Fix starvation on down_write_nonblock()
ALSA: hda: Add support for AMD Stoney Ridge
ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c
USB: check usb_get_extra_descriptor for proper size
usb: appledisplay: Add 27" Apple Cinema Display
usb: quirk: add no-LPM quirk on SanDisk Ultra Flair device
ARC: [zebu] Remove CONFIG_INITRAMFS_SOURCE from defconfigs
mm: don't warn about allocations which stall for too long
net: amd: add missing of_node_put()
team: no need to do team_notify_peers or team_mcast_rejoin when disabling port
iommu/vt-d: Use memunmap to free memremap
net: faraday: ftmac100: remove netif_running(netdev) check before disabling interrupts
mtd: rawnand: qcom: Namespace prefix some commands
net/mlx4: Fix UBSAN warning of signed integer overflow
net/mlx4_core: Fix uninitialized variable compilation warning
net/mlx4_core: Zero out lkey field in SW2HW_MPT fw command
qed: Fix reading wrong value in loop condition
qed: Fix PTT leak in qed_drain()
bnx2x: Assign unique DMAE channel number for FW DMAE transactions.
batman-adv: Expand merged fragment buffer for full packet
HID: input: Ignore battery reported by Symbol DS4308
can: rcar_can: Fix erroneous registration
iommu/ipmmu-vmsa: Fix crash on early domain free
brcmutil: really fix decoding channel info for 160 MHz bandwidth
iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()
media: omap3isp: Unregister media device as first
ANDROID: cpufreq: times: add /proc/uid_concurrent_{active,policy}_time
ANDROID: modpost: add an exception for CFI stubs
FROMGIT: modpost: validate symbol names also in find_elf_symbol
Linux 4.9.144
hugetlbfs: fix bug in pgoff overflow checking
xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
f2fs: fix to do sanity check with cp_pack_start_sum
f2fs: free meta pages if sanity check for ckpt is failed
f2fs: fix to do sanity check with block address in main area v2
f2fs: fix missing up_read
f2fs: fix to do sanity check with block address in main area
f2fs: fix to do sanity check with node footer and iblocks
f2fs: Add sanity_check_inode() function
f2fs: fix to do sanity check with user_block_count
f2fs: fix to do sanity check with secs_per_zone
f2fs: introduce and spread verify_blkaddr
f2fs: clean up with is_valid_blkaddr()
f2fs: enhance sanity_check_raw_super() to avoid potential overflow
f2fs: sanity check on sit entry
f2fs: check blkaddr more accuratly before issue a bio
f2fs: return error during fill_super
f2fs: detect wrong layout
f2fs: fix race condition in between free nid allocator/initializer
f2fs: fix a panic caused by NULL flush_cmd_control
btrfs: tree-checker: Fix misleading group system information
btrfs: tree-checker: Check level for leaves and nodes
btrfs: Check that each block group has corresponding chunk at mount time
btrfs: tree-checker: Detect invalid and empty essential trees
btrfs: tree-checker: Verify block_group_item
btrfs: tree-check: reduce stack consumption in check_dir_item
btrfs: tree-checker: use %zu format string for size_t
btrfs: tree-checker: Add checker for dir item
btrfs: tree-checker: Fix false panic for sanity test
btrfs: tree-checker: Enhance btrfs_check_node output
btrfs: struct-funcs, constify readers
btrfs: Move leaf and node validation checker to tree-checker.c
btrfs: Add checker for EXTENT_CSUM
btrfs: Add sanity check for EXTENT_DATA when reading out leaf
btrfs: Check if item pointer overlaps with the item itself
btrfs: Refactor check_leaf function for later expansion
btrfs: Verify that every chunk has corresponding block group at mount time
btrfs: validate type when reading a chunk
hugetlbfs: check for pgoff value overflow
hugetlbfs: fix offset overflow in hugetlbfs mmap
mm/hugetlb.c: don't call region_abort if region_chg fails
wil6210: missing length check in wmi_set_ie
bpf: Prevent memory disambiguation attack
bpf/verifier: Pass instruction index to check_mem_access() and check_xadd()
bpf/verifier: Add spi variable to check_stack_write()
libceph: check authorizer reply/challenge length before reading
libceph: weaken sizeof check in ceph_x_verify_authorizer_reply()
libceph: implement CEPHX_V2 calculation mode
libceph: add authorizer challenge
libceph: factor out encrypt_authorizer()
libceph: factor out __ceph_x_decrypt()
libceph: factor out __prepare_write_connect()
libceph: store ceph_auth_handshake pointer in ceph_connection
libceph: no need to drop con->mutex for ->get_authorizer()
libceph: drop len argument of *verify_authorizer_reply()
tipc: use destination length for copy string
net: qed: use correct strncpy() size
usb: gadget: dummy: fix nonsensical comparisons
mm: cleancache: fix corruption on missed inode invalidation
reset: remove remaining WARN_ON() in <linux/reset.h>
reset: make device_reset_optional() really optional
reset: add exported __reset_control_get, return NULL if optional
reset: fix optional reset_control_get stubs to return NULL
reset: core: fix reset_control_put
reset: make optional functions really optional
udf: Allow mounting volumes with incorrect identification strings
arc: [devboards] Add support of NFSv3 ACL
ARC: change defconfig defaults to ARCv2
Btrfs: fix use-after-free when dumping free space
btrfs: Always try all copies when reading extent buffers
Input: elan_i2c - add support for ELAN0621 touchpad
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Input: elan_i2c - add ELAN0620 to the ACPI table
Input: matrix_keypad - check for errors from of_get_named_gpio()
Input: xpad - quirk all PDP Xbox One gamepads
drm/mediatek: fix OF sibling-node lookup
svm: Add mutex_lock to protect apic_access_page_done on AMD systems
binder: fix proc->files use-after-free
kgdboc: Fix warning with module build
kgdboc: Fix restrict error
scsi: csiostor: Avoid content leaks and casts
ALSA: trident: Suppress gcc string warning
scsi: scsi_devinfo: cleanly zero-pad devinfo strings
drm: set is_master to 0 upon drm_new_set_master() failure
drm/ast: Fix incorrect free on ioregs
IB/mlx5: Avoid load failure due to unknown link width
mips: fix mips_get_syscall_arg o32 check
MIPS: ralink: Fix mt7620 nd_sd pinmux
uprobes: Fix handle_swbp() vs. unregister() + register() race once more
iser: set sector for ambiguous mr status errors
x86/power/64: Use char arrays for asm function names
kdb: use memmove instead of overlapping memcpy
staging: rts5208: fix gcc-8 logic error warning
scsi: bfa: convert to strlcpy/strlcat
drm: gma500: fix logic error
ip_tunnel: Fix name string concatenate in __ip_tunnel_create()
kernfs: Replace strncpy with memcpy
unifdef: use memcpy instead of strncpy
kobject: Replace strncpy with memcpy
test_hexdump: use memcpy instead of strncpy
disable stringop truncation warnings for now
Kbuild: suppress packed-not-aligned warning for default setting only
kbuild: Fix 4.9.138 mismerge
Linux 4.9.143
kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
efi/libstub: Make file I/O chunking x86-specific
workqueue: avoid clang warning
ARM: trusted_foundations: do not use naked function
bus: arm-cci: remove unnecessary unreachable()
ARM: 8767/1: add support for building ARM kernel with clang
ARM: 8766/1: drop no-thumb-interwork in EABI mode
efi/libstub: arm: support building with clang
misc: mic/scif: fix copy-paste error in scif_create_remote_lookup
Drivers: hv: vmbus: check the creation_status in vmbus_establish_gpadl()
mm: use swp_offset as key in shmem_replace_page()
iio:st_magn: Fix enable device after trigger
Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"
usb: core: quirks: add RESET_RESUME quirk for Cherry G230 Stream series
USB: usb-storage: Add new IDs to ums-realtek
btrfs: release metadata before running delayed refs
dmaengine: at_hdmac: fix module unloading
dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
ext2: fix potential use after free
ALSA: sparc: Fix invalid snd_free_pages() at error path
ALSA: control: Fix race between adding and removing a user element
ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write
ALSA: wss: Fix invalid snd_free_pages() at error path
fs: fix lost error code in dio_complete
perf/x86/intel: Add generic branch tracing check to intel_pmu_has_bts()
perf/x86/intel: Move branch tracing setup to the Intel-specific source file
Btrfs: ensure path name is null terminated at btrfs_control_ioctl
xtensa: fix coprocessor context offset definitions
xtensa: enable coprocessors that are being flushed
KVM: X86: Fix scan ioapic use-before-initialization
kvm: svm: Ensure an IBPB on all affected CPUs when freeing a vmcb
kvm: mmu: Fix race in emulated page table writes
usbnet: ipheth: fix potential recvmsg bug and recvmsg bug 2
s390/qeth: fix length check in SNMP processing
rapidio/rionet: do not free skb before reading its length
net: skb_scrub_packet(): Scrub offload_fwd_mark
Revert "wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout()"
media: em28xx: Fix use-after-free when disconnecting
mm/khugepaged: collapse_shmem() do not crash on Compound
mm/khugepaged: collapse_shmem() without freezing new_page
mm/khugepaged: minor reorderings in collapse_shmem()
mm/khugepaged: collapse_shmem() remember to clear holes
mm/khugepaged: fix crashes due to misaccounted holes
shmem: introduce shmem_inode_acct_block
shmem: shmem_charge: verify max_block is not exceeded before inode update
mm/khugepaged: collapse_shmem() stop if punched or truncated
mm/huge_memory: fix lockdep complaint on 32-bit i_size_read()
mm/huge_memory: splitting set mapping+index before unfreeze
mm/huge_memory.c: reorder operations in __split_huge_page_tail()
mm/huge_memory: rename freeze_page() to unmap_page()
UPSTREAM: binder: fix race that allows malicious free of live buffer
Linux 4.9.142
ima: re-initialize iint->atomic_flags
ima: re-introduce own integrity cache lock
EVM: Add support for portable signature format
ima: always measure and audit files in policy
Revert "evm: Translate user/group ids relative to s_user_ns when computing HMAC"
net: ieee802154: 6lowpan: fix frag reassembly
s390/mm: Check for valid vma before zapping in gmap_discard
lan78xx: Read MAC address from DT if present
namei: allow restricted O_CREAT of FIFOs and regular files
sched/core: Allow __sched_setscheduler() in interrupts when PI is not used
usb: xhci: fix uninitialized completion when USB3 port got wrong status
tty: wipe buffer if not echoing data
tty: wipe buffer.
include/linux/pfn_t.h: force '~' to be parsed as an unary operator
scsi: ufshcd: release resources if probe fails
scsi: ufs: fix race between clock gating and devfreq scaling work
scsi: ufshcd: Fix race between clk scaling and ungate work
scsi: ufs: fix bugs related to null pointer access and array size
mwifiex: fix p2p device doesn't find in scan problem
mwifiex: Fix NULL pointer dereference in skb_dequeue()
mwifiex: report error to PCIe for suspend failure
mwifiex: prevent register accesses after host is sleeping
cw1200: Don't leak memory if krealloc failes
Input: xpad - add support for Xbox1 PDP Camo series gamepad
Input: xpad - fix GPD Win 2 controller name
Input: xpad - add GPD Win 2 Controller USB IDs
Input: xpad - avoid using __set_bit() for capabilities
Input: xpad - fix some coding style issues
Input: xpad - add PDP device id 0x02a4
Input: xpad - add support for PDP Xbox One controllers
Input: xpad - validate USB endpoint type during probe
Input: xpad - fix PowerA init quirk for some gamepad models
Input: xpad - constify usb_device_id
Input: xpad - sync supported devices with XBCD
Input: xpad - sync supported devices with 360Controller
Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth
Input: xpad - sync supported devices with xboxdrv
Input: xpad - sort supported devices by USB ID
Input: xpad - support some quirky Xbox One pads
Input: xpad - restore LED state after device resume
Input: xpad - fix stuck mode button on Xbox One S pad
Input: xpad - don't depend on endpoint order
Input: xpad - simplify error condition in init_output
Input: xpad - move reporting xbox one home button to common function
Input: xpad - correctly sort vendor id's
Input: xpad - fix Xbox One rumble stopping after 2.5 secs
Input: xpad - add product ID for Xbox One S pad
ath10k: fix kernel panic due to race in accessing arvif list
arm64: remove no-op -p linker flag
net: bcmgenet: fix OF child-node lookup
NFC: nfcmrvl_uart: fix OF child-node lookup
of: add helper to lookup compatible child node
tmpfs: make lseek(SEEK_DATA/SEK_HOLE) return ENXIO with a negative offset
efi/arm: Revert deferred unmap of early memmap mapping
powerpc/numa: Suppress "VPHN is not supported" messages
kdb: Use strscpy with destination buffer size
SUNRPC: Fix a bogus get/put in generic_key_to_expire()
perf/x86/intel/uncore: Add more IMC PCI IDs for KabyLake and CoffeeLake CPUs
powerpc/io: Fix the IO workarounds code to work with Radix
floppy: fix race condition in __floppy_read_block_0()
rtc: pcf2127: fix a kmemleak caused in pcf2127_i2c_gather_write
cpufreq: imx6q: add return value check for voltage scale
KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE
pinctrl: meson: fix pinconf bias disable
usb: xhci: Prevent bus suspend if a port connect change or polling state is detected
IB/hfi1: Eliminate races in the SDMA send error path
IB/core: Fix for core panic
can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb
can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds
can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length
can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb()
drm/ast: Remove existing framebuffers before loading driver
drm/ast: fixed cursor may disappear sometimes
drm/ast: change resolution may cause screen blurred
mm: don't warn about large allocations for slab
llc: do not use sk_eat_skb()
gfs2: Don't leave s_fs_info pointing to freed memory in init_sbd
sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer
bfs: add sanity check at bfs_fill_super()
selinux: Add __GFP_NOWARN to allocation at str_read()
v9fs_dir_readdir: fix double-free on p9stat_read error
tools/power/cpupower: fix compilation with STATIC=true
brcmfmac: fix reporting support for 160 MHz channels
iwlwifi: mvm: fix regulatory domain update when the firmware starts
iwlwifi: mvm: support sta_statistics() even on older firmware
gpio: don't free unallocated ida on gpiochip_add_data_with_key() error path
MAINTAINERS: Add Sasha as a stable branch maintainer
usb: xhci: fix timeout for transition from RExit to U0
usb: dwc3: core: Clean up ULPI device
usb: core: Fix hub port connection events lost
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
Revert "ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple"
arch/arm64/crypto/sha1-ce-glue.c fix 4.9.129 merge issue
arch/arm64/crypto/sha2-ce-glue.c: fix 4.9.129 merge issue
ANDROID: sdcardfs: Add option to not link obb
ANDROID: sdcardfs: Add sandbox
Revert "proc: Convert proc_mount to use mount_ns."
xen: Fix 4.9.139 merge resolution
efi/libstub: Fix 4.9.139 merge resolution
Linux 4.9.141
libceph: fall back to sendmsg for slab pages
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
new helper: uaccess_kernel()
ACPI / platform: Add SMB0001 HID to forbidden_id_list
drivers/misc/sgi-gru: fix Spectre v1 vulnerability
USB: misc: appledisplay: add 20" Apple Cinema Display
misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data
usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB
USB: quirks: Add no-lpm quirk for Raydium touchscreens
usb: cdc-acm: add entry for Hiro (Conexant) modem
uio: Fix an Oops on load
media: v4l: event: Add subscription to list before calling "add" operation
Revert "Bluetooth: h5: Fix missing dependency on BT_HCIUART_SERDEV"
Revert "media: videobuf2-core: don't call memop 'finish' when queueing"
btrfs: fix pinned underflow after transaction aborted
btrfs: Ensure btrfs_trim_fs can trim the whole filesystem
btrfs: Enhance btrfs_trim_fs function to handle error better
ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM
ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70
gfs2: Put bitmap buffers in put_super
SUNRPC: drop pointless static qualifier in xdr_get_next_encode_buffer()
zram: close udev startup race condition as default groups
qed: Fix blocking/unlimited SPQ entries leak
qed: Fix memory/entry leak in qed_init_sp_request()
lib/raid6: Fix arm64 test build
clk: fixed-factor: fix of_node_get-put imbalance
hwmon: (ibmpowernv) Remove bogus __init annotations
s390/qeth: fix HiperSockets sniffer
netfilter: xt_IDLETIMER: add sysfs filename checking routine
netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment()
s390/mm: Fix ERROR: "__node_distance" undefined!
netfilter: ipset: actually allow allowable CIDR 0 in hash:net,port,net
s390/vdso: add missing FORCE to build targets
arm64: percpu: Initialize ret in the default case
platform/x86: acerhdf: Add BIOS entry for Gateway LT31 v1.3307
clk: samsung: exynos5420: Enable PERIS clocks for suspend
fs/exofs: fix potential memory leak in mount option parsing
clk: fixed-rate: fix of_node_get-put imbalance
platform/x86: intel_telemetry: report debugfs failure
drm/edid: Add 6 bpc quirk for BOE panel.
um: Give start_idle_thread() a return code
hfsplus: prevent btree data loss on root split
hfs: prevent btree data loss on root split
reiserfs: propagate errors from fill_with_dentries() properly
cifs: don't dereference smb_file_target before null check
Linux 4.9.140
Revert "ipv6: set rt6i_protocol properly in the route when it is installed"
Revert "x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation"
Linux 4.9.139
ARM: spectre-v1: mitigate user accesses
ARM: spectre-v1: use get_user() for __get_user()
ARM: use __inttype() in get_user()
ARM: oabi-compat: copy semops using __copy_from_user()
ARM: vfp: use __copy_from_user() when restoring VFP state
ARM: signal: copy registers using __copy_from_user()
ARM: spectre-v1: fix syscall entry
ARM: spectre-v1: add array_index_mask_nospec() implementation
ARM: spectre-v1: add speculation barrier (csdb) macros
ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1
ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15
ARM: KVM: invalidate icache on guest exit for Cortex-A15
ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17
ARM: spectre-v2: warn about incorrect context switching functions
ARM: spectre-v2: add firmware based hardening
ARM: spectre-v2: harden user aborts in kernel space
ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit
ARM: spectre-v2: harden branch predictor on context switches
ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre
ARM: bugs: add support for per-processor bug checking
ARM: bugs: hook processor bug checking into SMP and suspend paths
ARM: bugs: prepare processor bug infrastructure
ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs
arm64: uaccess: suppress spurious clang warning
Kbuild: use -fshort-wchar globally
x86/build: Use cc-option to validate stack alignment parameter
x86/build: Fix stack alignment for CLang
efi/libstub/arm64: Set -fpie when building the EFI stub
efi/libstub: Preserve .debug sections after absolute relocation check
efi/libstub/arm64: Force 'hidden' visibility for section markers
efi/libstub/arm64: Use hidden attribute for struct screen_info reference
x86/boot: #undef memcpy() et al in string.c
crypto: arm64/sha - avoid non-standard inline asm tricks
kbuild: clang: Disable 'address-of-packed-member' warning
x86/build: Specify stack alignment for clang
x86/build: Use __cc-option for boot code compiler options
kbuild: Add __cc-option macro
crypto, x86: aesni - fix token pasting for clang
x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
modules: mark __inittest/__exittest as __maybe_unused
kbuild: Add support to generate LLVM assembly files
kbuild: use -Oz instead of -Os when using clang
kbuild, LLVMLinux: Add -Werror to cc-option to support clang
kbuild: drop -Wno-unknown-warning-option from clang options
kbuild: fix asm-offset generation to work with clang
kbuild: consolidate redundant sed script ASM offset generation
kbuild: Consolidate header generation from ASM offset information
kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
kbuild: Add better clang cross build support
ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF
inet: frags: better deal with smp races
usbnet: smsc95xx: disable carrier check while suspending
tg3: Add PHY reset for 5717/5719/5720 in change ring and flow control paths
sctp: not allow to set asoc prsctp_enable by sockopt
net-gro: reset skb->pkt_type in napi_reuse_skb()
ip_tunnel: don't force DF when MTU is locked
flow_dissector: do not dissect l4 ports for fragments
ANDROID: sched/debug: Make Energy Model read-only
Linux 4.9.138
KVM: arm64: Fix caching of host MDCR_EL2 value
drm/i915/execlists: Force write serialisation into context image vs execution
drm/i915/hdmi: Add HDMI 2.0 audio clock recovery N values
drm/dp_mst: Check if primary mstb is null
drm/rockchip: Allow driver to be shutdown on reboot/kexec
mm: migration: fix migration of huge PMD shared pages
hugetlbfs: fix kernel BUG at fs/hugetlbfs/inode.c:444!
lib/ubsan.c: don't mark __ubsan_handle_builtin_unreachable as noreturn
configfs: replace strncpy with memcpy
fuse: fix leaked notify reply
fuse: fix use-after-free in fuse_direct_IO()
rtc: hctosys: Add missing range error reporting
nfsd: COPY and CLONE operations require the saved filehandle to be set
sunrpc: correct the computation for page_ptr when truncating
mount: Prevent MNT_DETACH from disconnecting locked mounts
mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts
mount: Retest MNT_LOCKED in do_umount
ext4: fix buffer leak in __ext4_read_dirblock() on error path
ext4: fix buffer leak in ext4_xattr_move_to_block() on error path
ext4: release bs.bh before re-using in ext4_xattr_block_find()
ext4: fix possible leak of s_journal_flag_rwsem in error path
ext4: fix possible leak of sbi->s_group_desc_leak in error path
ext4: avoid possible double brelse() in add_new_gdb() on error path
ext4: fix missing cleanup if ext4_alloc_flex_bg_array() fails while resizing
ext4: avoid buffer leak in ext4_orphan_add() after prior errors
ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
ext4: avoid potential extra brelse in setup_new_flex_group_blocks()
ext4: add missing brelse() add_new_gdb_meta_bg()'s error path
ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
ext4: add missing brelse() update_backups()'s error path
clockevents/drivers/i8253: Add support for PIT shutdown quirk
Btrfs: fix data corruption due to cloning of eof block
Btrfs: fix cur_offset in the error case for nocow
arch/alpha, termios: implement BOTHER, IBSHIFT and termios2
termios, tty/tty_baudrate.c: fix buffer overrun
of, numa: Validate some distance map rules
mtd: docg3: don't set conflicting BCH_CONST_PARAMS option
netfilter: conntrack: fix calculation of next bucket number in early_drop
mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings
ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry
vhost/scsi: truncate T10 PI iov_iter to prot_bytes
reset: hisilicon: fix potential NULL pointer dereference
mach64: fix image corruption due to reading accelerator registers
mach64: fix display corruption on big endian machines
Revert "ceph: fix dentry leak in splice_dentry()"
libceph: bump CEPH_MSG_MAX_DATA_LEN
clk: rockchip: Fix static checker warning in rockchip_ddrclk_get_parent call
clk: at91: Fix division by zero in PLL recalc_rate()
clk: s2mps11: Fix matching when built as module and DT node contains compatible
xtensa: fix boot parameters address translation
xtensa: make sure bFLT stack is 16 byte aligned
xtensa: add NOTES section to the linker script
MIPS: Loongson-3: Fix BRIDGE irq delivery problem
MIPS: Loongson-3: Fix CPU UART irq delivery problem
parisc: Fix exported address of os_hpmc handler
parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
parisc: Align os_hpmc_size on word boundary
bna: ethtool: Avoid reading past end of buffer
e1000: fix race condition between e1000_down() and e1000_watchdog
e1000: avoid null pointer dereference on invalid stat type
mm: do not bug_on on incorrect length in __mm_populate()
fuse: set FR_SENT while locked
fuse: fix blocked_waitq wakeup
fuse: Fix use-after-free in fuse_dev_do_write()
fuse: Fix use-after-free in fuse_dev_do_read()
scsi: qla2xxx: shutdown chip if reset fail
scsi: qla2xxx: Fix incorrect port speed being set for FC adapters
cdrom: fix improper type cast, which can leat to information leak.
9p: clear dangling pointers in p9stat_free
9p locks: fix glock.client_id leak in do_lock
powerpc/selftests: Wait all threads to join
media: tvp5150: fix width alignment during set_selection()
sc16is7xx: Fix for multi-channel stall
MIPS/PCI: Call pcie_bus_configure_settings() to set MPS/MRRS
powerpc/boot: Ensure _zimage_start is a weak symbol
MIPS: kexec: Mark CPU offline before disabling local IRQ
media: pci: cx23885: handle adding to list failure
drm/omap: fix memory barrier bug in DMM driver
powerpc/nohash: fix undefined behaviour when testing page size support
ARM: imx_v6_v7_defconfig: Select CONFIG_TMPFS_POSIX_ACL
tty: check name length in tty_find_polling_driver()
powerpc/eeh: Fix possible null deref in eeh_dump_dev_log()
Linux 4.9.137
MD: fix invalid stored role for a disk - try2
btrfs: set max_extent_size properly
Btrfs: fix null pointer dereference on compressed write path error
btrfs: qgroup: Dirty all qgroups before rescan
Btrfs: fix wrong dentries after fsync of file that got its parent replaced
btrfs: make sure we create all new block groups
btrfs: reset max_extent_size on clear in a bitmap
btrfs: wait on caching when putting the bg cache
btrfs: don't attempt to trim devices that don't support it
btrfs: iterate all devices during trim, instead of fs_devices::alloc_list
btrfs: fix error handling in free_log_tree
btrfs: locking: Add extra check in btrfs_init_new_buffer() to avoid deadlock
btrfs: Handle owner mismatch gracefully when walking up tree
soc/tegra: pmc: Fix child-node lookup
arm64: dts: stratix10: Correct System Manager register size
Cramfs: fix abad comparison when wrap-arounds occur
rpmsg: smd: fix memory leak on channel create
arm64: lse: remove -fcall-used-x0 flag
media: em28xx: make v4l2-compliance happier by starting sequence on zero
media: em28xx: fix input name for Terratec AV 350
media: tvp5150: avoid going past array on v4l2_querymenu()
media: em28xx: use a default format if TRY_FMT fails
xen: fix xen_qlock_wait()
kgdboc: Passing ekgdboc to command line causes panic
media: v4l2-tpg: fix kernel oops when enabling HFLIP and OSD
TC: Set DMA masks for devices
MIPS: OCTEON: fix out of bounds array access on CN68XX
powerpc/msi: Fix compile error on mpc83xx
dm ioctl: harden copy_params()'s copy_from_user() from malicious users
lockd: fix access beyond unterminated strings in prints
nfsd: Fix an Oops in free_session()
NFSv4.1: Fix the r/wsize checking
genirq: Fix race on spurious interrupt detection
printk: Fix panic caused by passing log_buf_len to command line
smb3: on kerberos mount if server doesn't specify auth type use krb5
smb3: do not attempt cifs operation in smb3 query info error path
smb3: allow stats which track session and share reconnects to be reset
w1: omap-hdq: fix missing bus unregister at removal
iio: adc: at91: fix wrong channel number in triggered buffer mode
iio: adc: at91: fix acking DRDY irq on simple conversions
iio: adc: imx25-gcq: Fix leak of device_node in mx25_gcq_setup_cfgs()
iio: ad5064: Fix regulator handling
kbuild: fix kernel/bounds.c 'W=1' warning
hugetlbfs: dirty pages as they are added to pagecache
ima: fix showing large 'violations' or 'runtime_measurements_count'
crypto: tcrypt - fix ghash-generic speed test
crypto: lrw - Fix out-of bounds access on counter overflow
signal/GenWQE: Fix sending of SIGKILL
PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
EDAC, skx_edac: Fix logical channel intermediate decoding
EDAC, {i7core,sb,skx}_edac: Fix uncorrected error counting
HID: hiddev: fix potential Spectre v1
ext4: propagate error from dquot_initialize() in EXT4_IOC_FSSETXATTR
ext4: initialize retries variable in ext4_da_write_inline_data_begin()
gfs2_meta: ->mount() can get NULL dev_name
jbd2: fix use after free in jbd2_log_do_checkpoint()
ASoC: intel: skylake: Add missing break in skl_tplg_get_token()
libnvdimm: Hold reference on parent while scheduling async init
net/ipv4: defensive cipso option parsing
iwlwifi: mvm: check return value of rs_rate_from_ucode_rate()
usbip:vudc: BUG kmalloc-2048 (Not tainted): Poison overwritten
libertas: don't set URB_ZERO_PACKET on IN USB transfer
xen: make xen_qlock_wait() nestable
xen: fix race in xen_qlock_wait()
xen/blkfront: avoid NULL blkfront_info dereference on device removal
tpm: Restore functionality to xen vtpm driver.
xen-swiotlb: use actually allocated size on check physical continuous
ARM: dts: exynos: Mark 1 GHz CPU OPP as suspend OPP on Exynos5250
ARM: dts: exynos: Convert exynos5250.dtsi to opp-v2 bindings
arm: dts: exynos: Add missing cooling device properties for CPUs
ARM: dts: exynos: Remove "cooling-{min|max}-level" for CPU nodes
ALSA: hda: Check the non-cached stream buffers more explicitly
dmaengine: dma-jz4780: Return error if not probed from DT
signal: Always deliver the kernel's SIGKILL and SIGSTOP to a pid namespace init
scsi: lpfc: Correct soft lockup when running mds diagnostics
uio: ensure class is registered before devices
driver/dma/ioat: Call del_timer_sync() without holding prep_lock
usb: chipidea: Prevent unbalanced IRQ disable
crypto: caam - fix implicit casts in endianness helpers
coresight: etb10: Fix handling of perf mode
PCI/MSI: Warn and return error if driver enables MSI/MSI-X twice
MD: fix invalid stored role for a disk
ext4: fix argument checking in EXT4_IOC_MOVE_EXT
usb: gadget: udc: atmel: handle at91sam9rl PMC
VMCI: Resource wildcard match fixed
tpm: suppress transmit cmd error logs when TPM 1.2 is disabled/deactivated
IB/ipoib: Clear IPCB before icmp_send
RDMA/core: Do not expose unsupported counters
scsi: megaraid_sas: fix a missing-check bug
scsi: esp_scsi: Track residual for PIO transfers
cgroup, netclassid: add a preemption point to write_classid
ath10k: schedule hardware restart if WMI command times out
ixgbevf: VF2VF TCP RSS
pinctrl: ssbi-gpio: Fix pm8xxx_pin_config_get() to be compliant
pinctrl: spmi-mpp: Fix pmic_mpp_config_get() to be compliant
pinctrl: qcom: spmi-mpp: Fix drive strength setting
ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers
kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()
brcmfmac: fix for proper support of 160MHz bandwidth
pinctrl: qcom: spmi-mpp: Fix err handling of pmic_mpp_set_mux
x86: boot: Fix EFI stub alignment
Bluetooth: btbcm: Add entry for BCM4335C0 UART bluetooth
cpufreq: dt: Try freeing static OPPs only if we have added them
x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC
iwlwifi: pcie: avoid empty free RB queue
mmc: sdhci-pci-o2micro: Add quirk for O2 Micro dev 0x8620 rev 0x01
perf strbuf: Match va_{add,copy} with va_end
perf tools: Cleanup trace-event-info 'tdata' leak
perf tools: Free temporary 'sys' string in read_event_files()
hwmon: (pwm-fan) Set fan speed to 0 on suspend
s390/sthyi: Fix machine name validity indication
tun: Consistently configure generic netdev params via rtnetlink
swim: fix cleanup on setup error
ataflop: fix error handling during setup
locking/lockdep: Fix debug_locks off performance problem
i2c: rcar: cleanup DMA for all kinds of failure
selftests: ftrace: Add synthetic event syntax testcase
net: qla3xxx: Remove overflowing shift statement
x86/fpu: Remove second definition of fpu in __fpu__restore_sig()
perf cpu_map: Align cpu map synthesized events properly.
sched/fair: Fix the min_vruntime update logic in dequeue_entity()
sparc64: Make proc_id signed.
sparc: Fix single-pcr perf event counter management.
xfrm: policy: use hlist rcu variants on insert
Revert "perf tools: Fix PMU term format max value calculation"
bpf: do not blindly change rlimit in reuseport net selftest
x86/speculation: Support Enhanced IBRS on future CPUs
x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided
x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops
ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905)
ALSA: hda - Fix headphone pin config for ASUS G751
ALSA: hda - Add quirk for ASUS G751 laptop
parisc: Fix map_pages() to not overwrite existing pte entries
parisc: Fix address in HPMC IVA
ipmi: Fix timer race with module unload
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
jffs2: free jffs2_sb_info through jffs2_kill_sb()
hwmon: (pmbus) Fix page count auto-detection.
bcache: fix miss key refill->end in writeback
ANDROID: zram: set comp_len to PAGE_SIZE when page is huge
Linux 4.9.136
posix-timers: Sanitize overrun handling
net: fs_enet: do not call phy_stop() in interrupts
x86/time: Correct the attribute on jiffies' definition
x86/percpu: Fix this_cpu_read()
sched/fair: Fix throttle_list starvation with low CFS quota
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
USB: fix the usbfs flag sanitization for control transfers
usb: gadget: storage: Fix Spectre v1 vulnerability
cdc-acm: correct counting of UART states in serial state notification
IB/ucm: Fix Spectre v1 vulnerability
RDMA/ucma: Fix Spectre v1 vulnerability
drm/edid: Add 6 bpc quirk for BOE panel in HP Pavilion 15-n233sl
ptp: fix Spectre v1 vulnerability
cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
xfs: truncate transaction does not modify the inobt
gpio: mxs: Get rid of external API call
ahci: don't ignore result code of ahci_reset_controller()
crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned
Revert "x86/mm: Expand static page table for fixmap space"
ip6_tunnel: Fix encapsulation layout
rtnetlink: Disallow FDB configuration for non-Ethernet device
net: fix pskb_trim_rcsum_slow() with odd trim offset
net: drop skb on failure in ip_check_defrag()
bonding: fix length of actor system
ethtool: fix a privilege escalation bug
vhost: Fix Spectre V1 vulnerability
sctp: fix race on sctp_id2asoc
r8169: fix NAPI handling under high load
net: udp: fix handling of CHECKSUM_COMPLETE packets
net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
net: socket: fix a missing-check bug
net: sched: gred: pass the right attribute to gred_change_table_def()
net/ipv6: Fix index counter for unicast addresses in in6_dump_addrs
llc: set SOCK_RCU_FREE in llc_sap_add_socket()
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
ipv6: mcast: fix a use-after-free in inet6_mc_check
net: bridge: remove ipv6 zero address check in mcast queries
bridge: do not add port to router list when receives query with source 0.0.0.0
perf tools: Disable parallelism for 'make clean'
Revert "netfilter: ipv6: nf_defrag: drop skb dst before queueing"
mtd: spi-nor: Add support for is25wp series chips
fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
net: ena: fix NULL dereference due to untimely napi initialization
rxrpc: Only take the rwind and mtu values from latest ACK
rxrpc: Don't check RXRPC_CALL_TX_LAST after calling rxrpc_rotate_tx_window()
ARM: dts: imx53-qsb: disable 1.2GHz OPP
perf tests: Fix indexing when invoking subtests
xhci: Fix USB3 NULL pointer dereference at logical disconnect.
libertas: call into generic suspend code before turning off power
IB/mlx4: Fix an error handling path in 'mlx4_ib_rereg_user_mr()'
x86/paravirt: Fix some warning messages
iio: buffer: fix the function signature to match implementation
nvmet: fix space padding in serial number
bonding: ratelimit failed speed/duplex update warning
enic: do not overwrite error code
xen-netfront: Fix mismatched rtnl_unlock
sparc64: Fix regression in pmdp_invalidate().
xen-netfront: Update features after registering netdev
test_bpf: Fix testing with CONFIG_BPF_JIT_ALWAYS_ON=y on other arches
ALSA: hda - Fix incorrect usage of IS_REACHABLE()
futex: futex_wake_op, do not fail on invalid op
cifs: Use ULL suffix for 64-bit constant
perf/core: Fix locking for children siblings group read
macsec: fix memory leaks when skb_to_sgvec fails
l2tp: remove configurable payload offset
iio: pressure: zpa2326: Remove always-true check which confuses gcc
module: fix DEBUG_SET_MODULE_RONX typo
drm/msm: Fix possible null dereference on failure of get_pages()
Btrfs: incremental send, fix invalid memory access
Revert "IB/ipoib: Update broadcast object if PKey value was changed in index 0"
i40e: avoid NVM acquire deadlock during NVM update
drm: bochs: Don't remove uninitialized fbdev framebuffer
scsi: qla2xxx: Avoid double completion of abort command
IB/mlx5: Avoid passing an invalid QP type to firmware
mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'
nbd: only set MSG_MORE when we have more to send
IB/rxe: put the pool on allocation failure
IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush
ipv6: fix cleanup ordering for ip6_mr failure
ath10k: convert warning about non-existent OTP board id to debug message
ALSA: hda - No loopback on ALC299 codec
sctp: use right member as the param of list_for_each_entry
net: cdc_ncm: GetNtbFormat endian fix
ocfs2: fix deadlock caused by recursive locking in xattr
qed: Warn PTT usage by wrong hw-function
iio: adc: Revert "axp288: Drop bogus AXP288_ADC_TS_PIN_CTRL register modifications"
rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp
staging: wilc1000: Fix problem with wrong vif index
ptr_ring: fix up after recent ptr_ring changes
clk: samsung: Fix m2m scaler clock on Exynos542x
usb: dwc3: omap: remove IRQ_NOAUTOEN used with shared irq
usb: renesas_usbhs: gadget: fix unused-but-set-variable warning
usb: renesas_usbhs: gadget: fix spin_lock_init() for &uep->lock
net/mlx5: Fix health work queue spin lock to IRQ safe
perf probe: Fix probe definition for inlined functions
perf evsel: Fix probing of precise_ip level for default cycles event
net/mlx5: Fix driver load error flow when firmware is stuck
ip6_tunnel: Correct tos value in collect_md mode
net/mlx5e: Fix fixpoint divide exception in mlx5e_am_stats_compare
ufs: we need to sync inode before freeing it
Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io
net: stmmac: ensure jumbo_frm error return is correctly checked for -ve value
elevator: fix truncation of icq_cache_name
gpu: ipu-v3: Fix CSI selection for VDIC
ARM: 8677/1: boot/compressed: fix decompressor header layout for v7-M
x86/cpu/cyrix: Add alternative Device ID of Geode GX1 SoC
qlcnic: Fix tunnel offload for 82xx adapters
net: ethernet: stmmac: Fix altr_tse_pcs SGMII Initialization
libata: fix error checking in in ata_parse_force_one()
mac80211: fix TX aggregation start/stop callback race
arch/sparc: increase CONFIG_NODES_SHIFT on SPARC64 to 5
ASoC: Intel: Skylake: Fix to parse consecutive string tkns in manifest
reset: hi6220: Set module license so that it can be loaded
ata: sata_rcar: Handle return value of clk_prepare_enable
btrfs: fiemap: Cache and merge fiemap extent before submit it to user
ARM: dts: bcm283x: Reserve first page for firmware
ath10k: fix NAPI enable/disable symmetry for AHB interface
bnxt_en: Don't use rtnl lock to protect link change logic in workqueue.
tipc: fix a race condition of releasing subscriber object
tipc: Fix tipc_sk_reinit handling of -EAGAIN
net/mlx5: Fix command completion after timeout access invalid structure
net: phy: marvell: Limit 88m1101 autoneg errata to 88E1145 as well.
nvme-pci: fix CMB sysfs file removal in reset path
rxe: Fix a sleep-in-atomic bug in post_one_send
orangefs: off by ones in xattr size checks
IB/core: Fix the validations of a multicast LID in attach or detach operations
IB/ipoib: Do not warn if IPoIB debugfs doesn't exist
platform/x86: acer-wmi: setup accelerometer when ACPI device was found
ipv6: set rt6i_protocol properly in the route when it is installed
efi/fb: Correct PCI_STD_RESOURCE_END usage
i2c: bcm2835: Avoid possible NULL ptr dereference
PCI: Disable MSI for HiSilicon Hip06/Hip07 only in Root Port mode
ACPI: sysfs: Make ACPI GPE mask kernel parameter cover all GPEs
igb: Remove superfluous reset to PHY and page 0 selection
f2fs: fix multiple f2fs_add_link() having same name for inline dentry
scsi: aacraid: Fix typo in blink status
MIPS: Handle non word sized instructions when examining frame
MIPS: microMIPS: Fix decoding of swsp16 instruction
mm/memory_hotplug.c: fix overflow in test_pages_in_a_zone()
perf symbols: Fix memory corruption because of zero length symbols
net: cxgb3_main: fix a missing-check bug
declance: Fix continuation with the adapter identification message
net: fec: fix rare tx timeout
perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX
perf/ring_buffer: Prevent concurent ring buffer access
smsc95xx: Check for Wake-on-LAN modes
smsc75xx: Check for Wake-on-LAN modes
r8152: Check for supported Wake-on-LAN Modes
sr9800: Check for supported Wake-on-LAN modes
lan78xx: Check for supported Wake-on-LAN modes
ax88179_178a: Check for supported Wake-on-LAN modes
asix: Check for supported Wake-on-LAN modes
qed: Avoid constant logical operation warning in qed_vf_pf_acquire
qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor
pxa168fb: prepare the clock
Bluetooth: SMP: fix crash in unpairing
mac80211_hwsim: do not omit multicast announce of first added radio
nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT
soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift()
soc: fsl: qbman: qman: avoid allocating from non existing gen_pool
net: macb: Clean 64b dma addresses if they are not detected
ARM: dts: BCM63xx: Fix incorrect interrupt specifiers
xfrm: validate template mode
ARM: 8799/1: mm: fix pci_ioremap_io() offset check
mac80211: TDLS: fix skb queue/priority assignment
cfg80211: Address some corner cases in scan result channel updating
mac80211: fix pending queue hang due to TX_DROP
cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
mac80211: Always report TX status
xfrm6: call kfree_skb when skb is toobig
xfrm: Validate address prefix lengths in the xfrm selector.
BACKPORT: arm64: Expose support for optional ARMv8-A features
ANDROID: sdcardfs: Add option to drop unused dentries
UPSTREAM: xfrm: fix ptr_ret.cocci warnings
UPSTREAM: xfrm: Return detailed errors from xfrmi_newlink
UPSTREAM: xfrm: Allow xfrmi if_id to be updated by UPDSA
UPSTREAM: xfrm: Allow Set Mark to be Updated Using UPDSA
BACKPORT: xfrm: Add virtual xfrm interfaces
BACKPORT: xfrm: Add a new lookup key to match xfrm interfaces.
UPSTREAM: flow: Extend flow informations with xfrm interface id.
BACKPORT: xfrm: Extend the output_mark to support input direction and masking.
BACKPORT: xfrm: fix XFRMA_OUTPUT_MARK policy entry
f2fs: guarantee journalled quota data by checkpoint
f2fs: cleanup dirty pages if recover failed
f2fs: fix data corruption issue with hardware encryption
f2fs: fix to recover inode->i_flags of inode block during POR
f2fs: spread f2fs_set_inode_flags()
f2fs: fix to spread clear_cold_data()
Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
f2fs: account read IOs and use IO counts for is_idle
f2fs: fix to account IO correctly for cgroup writeback
f2fs: fix to account IO correctly
f2fs: remove request_list check in is_idle()
f2fs: allow to mount, if quota is failed
f2fs: update REQ_TIME in f2fs_cross_rename()
f2fs: do not update REQ_TIME in case of error conditions
f2fs: remove unneeded disable_nat_bits()
f2fs: remove unused sbi->trigger_ssr_threshold
f2fs: shrink sbi->sb_lock coverage in set_file_temperature()
f2fs: fix to recover cold bit of inode block during POR
f2fs: submit cached bio to avoid endless PageWriteback
f2fs: checkpoint disabling
f2fs: clear PageError on the read path
f2fs: allow out-place-update for direct IO in LFS mode
f2fs: refactor ->page_mkwrite() flow
Revert: "f2fs: check last page index in cached bio to decide submission"
f2fs: support superblock checksum
f2fs: add to account skip count of background GC
f2fs: add to account meta IO
f2fs: keep lazytime on remount
f2fs: fix missing up_read
f2fs: return correct errno in f2fs_gc
f2fs: avoid f2fs_bug_on if f2fs_get_meta_page_nofail got EIO
f2fs: mark inode dirty explicitly in recover_inode()
f2fs: fix to recover inode's crtime during POR
f2fs: fix to recover inode's i_gc_failures during POR
f2fs: fix to recover inode's i_flags during POR
f2fs: fix to recover inode's project id during POR
f2fs: update i_size after DIO completion
f2fs: report ENOENT correctly in f2fs_rename
f2fs: fix remount problem of option io_bits
f2fs: fix to recover inode's uid/gid during POR
f2fs: avoid infinite loop in f2fs_alloc_nid
f2fs: add new idle interval timing for discard and gc paths
f2fs: split IO error injection according to RW
f2fs: add SPDX license identifiers
f2fs: surround fault_injection related option parsing using CONFIG_F2FS_FAULT_INJECTION
f2fs: avoid sleeping under spin_lock
f2fs: plug readahead IO in readdir()
f2fs: fix to do sanity check with current segment number
f2fs: fix memory leak of percpu counter in fill_super()
f2fs: fix memory leak of write_io in fill_super()
f2fs: cache NULL when both default_acl and acl are NULL
f2fs: fix to flush all dirty inodes recovered in readonly fs
f2fs: report error if quota off error during umount
f2fs: submit bio after shutdown
f2fs: avoid wrong decrypted data from disk
Revert "f2fs: use printk_ratelimited for f2fs_msg"
f2fs: fix unnecessary periodic wakeup of discard thread when dev is busy
f2fs: fix to avoid NULL pointer dereference on se->discard_map
f2fs: add additional sanity check in f2fs_acl_from_disk()
UPSTREAM: HID: sony: remove redundant check for -ve err
UPSTREAM: HID: sony: Make sure to unregister sensors on failure
UPSTREAM: HID: sony: Make DS4 bt poll interval adjustable
UPSTREAM: HID: sony: Set proper bit flags on DS4 output report
UPSTREAM: HID: sony: DS4 use brighter LED colors
UPSTREAM: HID: sony: Improve navigation controller axis/button mapping
UPSTREAM: HID: sony: Use DS3 MAC address as unique identifier on USB
UPSTREAM: HID: sony: Perform duplicate device check earlier on
UPSTREAM: HID: sony: Expose DS3 motion sensors through separate device
UPSTREAM: HID: sony: Print error on failure to active DS3 / Navigation controllers
UPSTREAM: HID: sony: DS3 comply to Linux gamepad spec
UPSTREAM: HID: sony: Mark DS4 touchpad device as a pointer
UPSTREAM: HID: sony: Support motion sensor calibration on dongle
UPSTREAM: HID: sony: Make work handling more generic
UPSTREAM: HID: sony: Treat the ds4 dongle as a separate device
UPSTREAM: HID: sony: Remove report descriptor fixup for DS4
UPSTREAM: HID: sony: Report hardware timestamp for DS4 sensor values
UPSTREAM: HID: sony: Calibrate DS4 motion sensors
UPSTREAM: HID: sony: Report DS4 motion sensors through a separate device
UPSTREAM: HID: sony: Fix input device leak when connecting a DS4 twice using USB/BT
UPSTREAM: HID: sony: Ignore DS4 dongle reports when no device is connected
UPSTREAM: HID: sony: Use DS4 MAC address as unique identifier on USB
UPSTREAM: HID: sony: Fix error handling bug when touchpad registration fails
UPSTREAM: HID: sony: Comply to Linux gamepad spec for DS4
UPSTREAM: HID: sony: Make the DS4 touchpad a separate device
UPSTREAM: HID: sony: Fix memory issue when connecting device using both Bluetooth and USB
UPSTREAM: HID: sony: Adjust value range for motion sensors
UPSTREAM: HID: sony: Handle multiple touch events input record
UPSTREAM: HID: sony: Send ds4 output reports on output end-point
UPSTREAM: HID: sony: Perform CRC check on bluetooth input packets
UPSTREAM: HID: sony: Adjust HID report size name definitions
UPSTREAM: HID: sony: Fix race condition in sony_probe
Conflicts:
arch/arm/include/asm/cputype.h
drivers/gpu/drm/msm/msm_gem.c
drivers/scsi/ufs/ufshcd.c
drivers/usb/dwc3/core.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/segment.c
kernel/sched/core.c
net/xfrm/xfrm_user.c
Change-Id: I33a8fa8d996fb61c9730f4128b50e7716e84c9fe
Signed-off-by: jianzhou <jianzhou@codeaurora.org>
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||
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Guenter Roeck
|
cd39e296c4 |
kobject: Replace strncpy with memcpy
commit 77d2a24b6107bd9b3bf2403a65c1428a9da83dd0 upstream. gcc 8.1.0 complains: lib/kobject.c:128:3: warning: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation] lib/kobject.c: In function 'kobject_get_path': lib/kobject.c:125:13: note: length computed here Using strncpy() is indeed less than perfect since the length of data to be copied has already been determined with strlen(). Replace strncpy() with memcpy() to address the warning and optimize the code a little. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Blagovest Kolenichev
|
ae2ea7fe09 |
Merge android-4.9.98 (f679e4d) into msm-4.9
* refs/heads/tmp-f679e4d:
Linux 4.9.98
powerpc/eeh: Fix race with driver un/bind
x86/microcode/intel: Save microcode patch unconditionally
x86/smpboot: Don't use mwait_play_dead() on AMD systems
x86/ipc: Fix x32 version of shmid64_ds and msqid64_ds
tools/lib/subcmd/pager.c: do not alias select() params
objtool, perf: Fix GCC 8 -Wrestrict error
drm/amdgpu: set COMPUTE_PGM_RSRC1 for SGPR/VGPR clearing shaders
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
cpufreq: powernv: Fix hardlockup due to synchronous smp_call in timer interrupt
earlycon: Use a pointer table to fix __earlycon_table stride
libceph: validate con->state at the top of try_write()
libceph: reschedule a tick in finish_hunting()
libceph: un-backoff on tick when we have a authenticated session
ASoC: fsl_esai: Fix divisor calculation failure at lower ratio
crypto: drbg - set freed buffers to NULL
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
ARM: amba: Fix race condition with driver_override
ARM: amba: Make driver_override output consistent with other buses
PCI: aardvark: Fix PCIe Max Read Request Size setting
PCI: aardvark: Set PIO_ADDR_LS correctly in advk_pcie_rd_conf()
PCI: aardvark: Fix logic in advk_pcie_{rd,wr}_conf()
scsi: sd: Defer spinning up drive while SANITIZE is in progress
kobject: don't use WARN for registration failures
mtd: cfi: cmdset_0002: Do not allow read/write to suspend erase block.
mtd: cfi: cmdset_0001: Workaround Micron Erase suspend bug.
mtd: cfi: cmdset_0001: Do not allow read/write to suspend erase block.
ALSA: hda/realtek - Add some fixes for ALC233
ALSA: hda: Hardening for potential Spectre v1
ALSA: seq: oss: Hardening for potential Spectre v1
ALSA: seq: oss: Fix unbalanced use lock for synth MIDI device
ALSA: core: Report audio_tstamp in snd_pcm_sync_ptr
ALSA: control: Hardening for potential Spectre v1
ALSA: rme9652: Hardening for potential Spectre v1
ALSA: hdspm: Hardening for potential Spectre v1
ALSA: asihpi: Hardening for potential Spectre v1
ALSA: opl3: Hardening for potential Spectre v1
ALSA: dice: fix error path to destroy initialized stream data
ALSA: dice: fix OUI for TC group
tty: Use __GFP_NOFAIL for tty_ldisc_get()
tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set
tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
tty: Don't call panic() at tty_ldisc_init()
drm/virtio: fix vq wait_event condition
virtio_console: free buffers after reset
virtio: add ability to iterate over vqs
ALSA: usb-audio: Skip broken EU on Dell dock USB-audio
USB: Increment wakeup count on remote wakeup.
usb: core: Add quirk for HP v222w 16GB Mini
USB: serial: cp210x: add ID for NI USB serial console
USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster
USB: serial: simple: add libtransistor console
usbip: vhci_hcd: Fix usb device and sockfd leaks
usbip: usbip_host: fix to hold parent lock for device_attach() calls
usbip: usbip_event: fix to not print kernel pointer address
random: rate limit unseeded randomness warnings
random: fix possible sleeping allocation from irq context
random: set up the NUMA crng instances after the CRNG is fully initialized
ext4: fix bitmap position validation
ext4: add validity checks for bitmap block numbers
ext4: set h_journal if there is a failure starting a reserved handle
ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
cfi: print target address on failure
BACKPORT: ARM: cpuidle: Correct driver unregistration if init fails
BACKPORT: ARM: cpuidle: Avoid memleak if init fail
BACKPORT: ARM: cpuidle: Support asymmetric idle definition
Change-Id: Ie291572945a83300a1cd5303862691e18d882fa9
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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||
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Dmitry Vyukov
|
6ab441353d |
kobject: don't use WARN for registration failures
commit 3e14c6abbfb5c94506edda9d8e2c145d79375798 upstream. This WARNING proved to be noisy. The function still returns an error and callers should handle it. That's how most of kernel code works. Downgrade the WARNING to pr_err() and leave WARNINGs for kernel bugs. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reported-by: syzbot+209c0f67f99fec8eb14b@syzkaller.appspotmail.com Reported-by: syzbot+7fb6d9525a4528104e05@syzkaller.appspotmail.com Reported-by: syzbot+2e63711063e2d8f9ea27@syzkaller.appspotmail.com Reported-by: syzbot+de73361ee4971b6e6f75@syzkaller.appspotmail.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Jan Kara
|
608fc9d039 |
kobject: Export kobject_get_unless_zero()
Make the function available for outside use and fortify it against NULL kobject. Change-Id: I76dc2a49293ce967309a882b5067bd85b8fc828e CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com> Git-commit: c70c176ff8c3ff0ac6ef9a831cd591ea9a66bd1a Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org> |
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|
Gabriel Somlo
|
2fe829aca9 |
kobject: export kset_find_obj() for module use
Signed-off-by: Gabriel Somlo <somlo@cmu.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rasmus Villemoes
|
f773f32d71 |
lib/kobject.c: use kvasprintf_const for formatting ->name
Sometimes kobject_set_name_vargs is called with a format string conaining no %, or a format string of precisely "%s", where the single vararg happens to point to .rodata. kvasprintf_const detects these cases for us and returns a copy of that pointer instead of duplicating the string, thus saving some run-time memory. Otherwise, it falls back to kvasprintf. We just need to always deallocate ->name using kfree_const. Unfortunately, the dance we need to do to perform the '/' -> '!' sanitization makes the resulting code rather ugly. I instrumented kstrdup_const to provide some statistics on the memory saved, and for me this gave an additional ~14KB after boot (306KB was already saved; this patch bumped that to 320KB). I have KMALLOC_SHIFT_LOW==3, and since 80% of the kvasprintf_const hits were satisfied by an 8-byte allocation, the 14K would roughly be quadrupled when KMALLOC_SHIFT_LOW==5. Whether these numbers are sufficient to justify the ugliness I'll leave to others to decide. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Gabriel Somlo
|
fa40ae3444 |
kobject: move EXPORT_SYMBOL() macros next to corresponding definitions
Move EXPORT_SYMBOL() macros in kobject.c from the end of the file next to the function definitions to which they belong. Signed-off-by: Gabriel Somlo <somlo@cmu.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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|
Nicolas Iooss
|
8db1486065 |
include, lib: add __printf attributes to several function prototypes
Using __printf attributes helps to detect several format string issues at compile time (even though -Wformat-security is currently disabled in Makefile). For example it can detect when formatting a pointer as a number, like the issue fixed in commit |
||
|
Linus Torvalds
|
043cd04950 |
Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason: "Outside of our usual batch of fixes, this integrates the subvolume quota updates that Qu Wenruo from Fujitsu has been working on for a few releases now. He gets an extra gold star for making btrfs smaller this time, and fixing a number of quota corners in the process. Dave Sterba tested and integrated Anand Jain's sysfs improvements. Outside of exporting a symbol (ack'd by Greg) these are all internal to btrfs and it's mostly cleanups and fixes. Anand also attached some of our sysfs objects to our internal device management structs instead of an object off the super block. It will make device management easier overall and it's a better fit for how the sysfs files are used. None of the existing sysfs files are moved around. Thanks for all the fixes everyone" * 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (87 commits) btrfs: delayed-ref: double free in btrfs_add_delayed_tree_ref() Btrfs: Check if kobject is initialized before put lib: export symbol kobject_move() Btrfs: sysfs: add support to show replacing target in the sysfs Btrfs: free the stale device Btrfs: use received_uuid of parent during send Btrfs: fix use-after-free in btrfs_replay_log btrfs: wait for delayed iputs on no space btrfs: qgroup: Make snapshot accounting work with new extent-oriented qgroup. btrfs: qgroup: Add the ability to skip given qgroup for old/new_roots. btrfs: ulist: Add ulist_del() function. btrfs: qgroup: Cleanup the old ref_node-oriented mechanism. btrfs: qgroup: Switch self test to extent-oriented qgroup mechanism. btrfs: qgroup: Switch to new extent-oriented qgroup mechanism. btrfs: qgroup: Switch rescan to new mechanism. btrfs: qgroup: Add new qgroup calculation function btrfs_qgroup_account_extents(). btrfs: backref: Add special time_seq == (u64)-1 case for btrfs_find_all_roots(). btrfs: qgroup: Add new function to record old_roots. btrfs: qgroup: Record possible quota-related extent for qgroup. btrfs: qgroup: Add function qgroup_update_counters(). ... |
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Rasmus Villemoes
|
2abf114fc8 |
lib/kobject.c: use strreplace()
There's probably not many slashes in the name, but starting over when we see one feels wrong. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Anand Jain
|
24199d206a |
lib: export symbol kobject_move()
drivers/cpufreq/cpufreq.c is already using this function. And now btrfs needs it as well. Export symbol kobject_move(). Signed-off-by: Anand Jain <anand.jain@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David Sterba <dsterba@suse.cz> |
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|
Ethan Zhao
|
d82d54af7b |
kobject: WARN as tip when call kobject_get() to a kobject not initialized
call kobject_get() to kojbect that is not initalized or released will only leave following like call trace to us: -----------[ cut here ]------------ [ 54.545816] WARNING: CPU: 0 PID: 213 at include/linux/kref.h:47 kobject_get+0x41/0x50() [ 54.642595] Modules linked in: i2c_i801(+) mfd_core shpchp(+) acpi_cpufreq(+) edac_core ioatdma(+) xfs libcrc32c ast syscopyarea ixgbe sysfillrect sysimgblt sr_mod sd_mod drm_kms_helper igb mdio cdrom e1000e ahci dca ttm libahci uas drm i2c_algo_bit ptp megaraid_sas libata usb_storage i2c_core pps_core dm_mirror dm_region_hash dm_log dm_mod [ 55.007264] CPU: 0 PID: 213 Comm: kworker/0:2 Not tainted 3.18.5 [ 55.099970] Hardware name: Oracle Corporation SUN FIRE X4170 M2 SERVER /ASSY,MOTHERBOARD,X4170, BIOS 08120104 05/08/2012 [ 55.239736] Workqueue: kacpi_notify acpi_os_execute_deferred [ 55.308598] 0000000000000000 00000000bd730b61 ffff88046742baf8 ffffffff816b7edb [ 55.398305] 0000000000000000 0000000000000000 ffff88046742bb38 ffffffff81078ae1 [ 55.488040] ffff88046742bbd8 ffff8806706b3000 0000000000000292 0000000000000000 [ 55.577776] Call Trace: [ 55.608228] [<ffffffff816b7edb>] dump_stack+0x46/0x58 [ 55.670895] [<ffffffff81078ae1>] warn_slowpath_common+0x81/0xa0 [ 55.743952] [<ffffffff81078bfa>] warn_slowpath_null+0x1a/0x20 [ 55.814929] [<ffffffff8130d0d1>] kobject_get+0x41/0x50 [ 55.878654] [<ffffffff8153e955>] cpufreq_cpu_get+0x75/0xc0 [ 55.946528] [<ffffffff8153f37e>] cpufreq_update_policy+0x2e/0x1f0 The above issue was casued by a race condition, if there is a WARN in kobject_get() of the kobject is not initialized, that would save us much time to debug it. Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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|
Pankaj Dubey
|
41fb96a4b6 |
kobject: fix NULL pointer derefernce in kobj_child_ns_ops
We will hit NULL pointer dereference if we call platform_device_register_simple or platform_device_add at very early stage. I have observed following crash when called platform_device_add from "init_irq" hook of machine_desc. This patch fixes this issue and let system handle this case gracefully instead of kernel panic. [0.000000] Unable to handle kernel NULL pointer dereference at virtual address 0000000c [0.000000] pgd = c0004000 [0.000000] [0000000c] *pgd=00000000 [0.000000] Internal error: Oops: 5 [#1] PREEMPT ARM [0.000000] Modules linked in: [0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G W 3.17.0-rc6-00198-ga1603f1-dirty #319 [0.000000] task: c05b23f0 ti: c05a8000 task.ti: c05a8000 [0.000000] PC is at kobject_namespace+0x18/0x58 [0.000000] LR is at kobject_add_internal+0x90/0x2ec [snip] [0.000000] [<c01b1df0>] (kobject_namespace) from [<c01b2338>] (kobject_add_internal+0x90/0x2ec) [0.000000] [<c01b2338>] (kobject_add_internal) from [<c01b2728>] (kobject_add+0x4c/0x98) [0.000000] [<c01b2728>] (kobject_add) from [<c0226274>] (device_add+0xe8/0x51c) [0.000000] [<c0226274>] (device_add) from [<c0229c70>] (platform_device_add+0xb4/0x214) [0.000000] [<c0229c70>] (platform_device_add) from [<c022a338>] (platform_device_register_full+0xb8/0xdc) [0.000000] [<c022a338>] (platform_device_register_full) from [<c0570214>] (exynos_init_irq+0x90/0x9c) [0.000000] [<c0570214>] (exynos_init_irq) from [<c056c18c>] (init_IRQ+0x2c/0x78) [0.000000] [<c056c18c>] (init_IRQ) from [<c0569a54>] (start_kernel+0x22c/0x378) [0.000000] [<c0569a54>] (start_kernel) from [<40008070>] (0x40008070) [0.000000] Code: e590000c e3500000 0a00000e e5903014 (e593300c) Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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fa4cd451cc |
sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
Currently, kobject is invoking kernfs_enable_ns() directly. This is fine now as sysfs and kernfs are enabled and disabled together. If sysfs is disabled, kernfs_enable_ns() is switched to dummy implementation too and everything is fine; however, kernfs will soon have its own config option CONFIG_KERNFS and !SYSFS && KERNFS will be possible, which can make kobject call into non-dummy kernfs_enable_ns() with NULL kernfs_node pointers leading to an oops. Introduce sysfs_enable_ns() which is a wrapper around kernfs_enable_ns() so that it can be made a noop depending only on CONFIG_SYSFS regardless of the planned CONFIG_KERNFS. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
|
e7651b819e |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason: "This is a pretty big pull, and most of these changes have been floating in btrfs-next for a long time. Filipe's properties work is a cool building block for inheriting attributes like compression down on a per inode basis. Jeff Mahoney kicked in code to export filesystem info into sysfs. Otherwise, lots of performance improvements, cleanups and bug fixes. Looks like there are still a few other small pending incrementals, but I wanted to get the bulk of this in first" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (149 commits) Btrfs: fix spin_unlock in check_ref_cleanup Btrfs: setup inode location during btrfs_init_inode_locked Btrfs: don't use ram_bytes for uncompressed inline items Btrfs: fix btrfs_search_slot_for_read backwards iteration Btrfs: do not export ulist functions Btrfs: rework ulist with list+rb_tree Btrfs: fix memory leaks on walking backrefs failure Btrfs: fix send file hole detection leading to data corruption Btrfs: add a reschedule point in btrfs_find_all_roots() Btrfs: make send's file extent item search more efficient Btrfs: fix to catch all errors when resolving indirect ref Btrfs: fix protection between walking backrefs and root deletion btrfs: fix warning while merging two adjacent extents Btrfs: fix infinite path build loops in incremental send btrfs: undo sysfs when open_ctree() fails Btrfs: fix snprintf usage by send's gen_unique_name btrfs: fix defrag 32-bit integer overflow btrfs: sysfs: list the NO_HOLES feature btrfs: sysfs: don't show reserved incompat feature btrfs: call permission checks earlier in ioctls and return EPERM ... |
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Jeff Mahoney
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29dfe2dc0e |
kobject: export kobj_sysfs_ops
struct kobj_attribute implements the baseline attribute functionality that can be used all over the place. We should export the ops associated with it. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <clm@fb.com> |
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Bart Van Assche
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9705710e40 |
kobject: Fix source code comment spelling
Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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eb4c69033f |
Revert "kobject: introduce kobj_completion"
This reverts commit
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Tejun Heo
|
324a56e16e |
kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly
kernfs has just been separated out from sysfs and we're already in full conflict mode. Nothing can make the situation any worse. Let's take the chance to name things properly. This patch performs the following renames. * s/sysfs_elem_dir/kernfs_elem_dir/ * s/sysfs_elem_symlink/kernfs_elem_symlink/ * s/sysfs_elem_attr/kernfs_elem_file/ * s/sysfs_dirent/kernfs_node/ * s/sd/kn/ in kernfs proper * s/parent_sd/parent/ * s/target_sd/target/ * s/dir_sd/parent/ * s/to_sysfs_dirent()/rb_to_kn()/ * misc renames of local vars when they conflict with the above Because md, mic and gpio dig into sysfs details, this patch ends up modifying them. All are sysfs_dirent renames and trivial. While we can avoid these by introducing a dummy wrapping struct sysfs_dirent around kernfs_node, given the limited usage outside kernfs and sysfs proper, I don't think such workaround is called for. This patch is strictly rename only and doesn't introduce any functional difference. - mic / gpio renames were missing. Spotted by kbuild test robot. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Neil Brown <neilb@suse.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Maurizio Lombardi
|
020d30f17f |
kobject: fix memory leak in kobject_set_name_vargs
If the call to kvasprintf fails then the old name of the object will be leaked, this patch fixes the bug by restoring the old name before returning ENOMEM. Signed-off-by: Maurizio Lombardi <mlombard@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Bjorn Helgaas
|
35a5fe695b |
kobject: remove kset from sysfs immediately in kset_unregister()
There's no "unlink from sysfs" interface for ksets, so I think callers of kset_unregister() expect the kset to be removed from sysfs immediately, without waiting for the last reference to be released. This patch makes the sysfs removal happen immediately, so the caller may create a new kset with the same name as soon as kset_unregister() returns. Without this, every caller has to call "kobject_del(&kset->kobj)" first unless it knows it will never create a new kset with the same name. This sometimes shows up on module unload and reload, where the reload fails because it tries to create a kobject with the same name as one from the original load that still exists. CONFIG_DEBUG_KOBJECT_RELEASE=y makes this problem easier to hit. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Bjorn Helgaas
|
89c86a64cd |
kobject: delay kobject release for random time
When CONFIG_DEBUG_KOBJECT_RELEASE=y, delay kobject release functions for a random time between 1 and 8 seconds, which effectively changes the order in which they're called. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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93b2b8e4aa |
sysfs, kernfs: introduce kernfs_create_dir[_ns]()
Introduce kernfs interface to manipulate a directory which takes and returns sysfs_dirents. create_dir() is renamed to kernfs_create_dir_ns() and its argumantes and return value are updated. create_dir() usages are replaced with kernfs_create_dir_ns() and sysfs_create_subdir() usages are replaced with kernfs_create_dir(). Dup warnings are handled explicitly by sysfs users of the kernfs interface. sysfs_enable_ns() is renamed to kernfs_enable_ns(). This patch doesn't introduce any behavior changes. v2: Dummy implementation for !CONFIG_SYSFS updated to return -ENOSYS. v3: kernfs_enable_ns() added. v4: Refreshed on top of "sysfs: drop kobj_ns_type handling, take #2" so that this patch removes sysfs_enable_ns(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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c84a3b2779 |
sysfs: drop kobj_ns_type handling, take #2
The way namespace tags are implemented in sysfs is more complicated than necessary. As each tag is a pointer value and required to be non-NULL under a namespace enabled parent, there's no need to record separately what type each tag is. If multiple namespace types are needed, which currently aren't, we can simply compare the tag to a set of allowed tags in the superblock assuming that the tags, being pointers, won't have the same value across multiple types. This patch rips out kobj_ns_type handling from sysfs. sysfs now has an enable switch to turn on namespace under a node. If enabled, all children are required to have non-NULL namespace tags and filtered against the super_block's tag. kobject namespace determination is now performed in lib/kobject.c::create_dir() making sysfs_read_ns_type() unnecessary. The sanity checks are also moved. create_dir() is restructured to ease such addition. This removes most kobject namespace knowledge from sysfs proper which will enable proper separation and layering of sysfs. This is the second try. The first one was |
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Linus Torvalds
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a1212d278c |
Revert "sysfs: drop kobj_ns_type handling"
This reverts commit
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Fengguang Wu
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1461c5be7b |
kobject: show debug info on delayed kobject release
Useful for locating buggy drivers on kernel oops. It may add dozens of new lines to boot dmesg. DEBUG_KOBJECT_RELEASE is hopefully only enabled in debug kernels (like maybe the Fedora rawhide one, or at developers), so being a bit more verbose is likely ok. Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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26ea12dec0 |
kobject: grab an extra reference on kobject->sd to allow duplicate deletes
sysfs currently has a rather weird behavior regarding removals. A directory removal would delete all files directly under it but wouldn't recurse into subdirectories, which, while a bit inconsistent, seems to make sense at the first glance as each directory is supposedly associated with a kobject and each kobject can take care of the directory deletion; however, this doesn't really hold as we have groups which can be directories without a kobject associated with it and require explicit deletions. We're in the process of separating out sysfs from kboject / driver core and want a consistent behavior. A removal should delete either only the specified node or everything under it. I think it is helpful to support recursive atomic removal and later patches will implement it. Such change means that a sysfs_dirent associated with kobject may be deleted before the kobject itself is removed if one of its ancestor gets removed before it. As sysfs_remove_dir() puts the base ref, we may end up with dangling pointer on descendants. This can be solved by holding an extra reference on the sd from kobject. Acquire an extra reference on the associated sysfs_dirent on directory creation and put it after removal. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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88502b9c0a |
Merge 3.12-rc3 into driver-core-next
We want the driver core and sysfs fixes in here to make merges and development easier. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Eric W. Biederman
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730d7d3398 |
sysfs: Allow mounting without CONFIG_NET
In kobj_ns_current_may_mount the default should be to allow the mount.
The test is only for a single kobj_ns_type at a time, and unless there
is a reason to prevent it the mounting sysfs should be allowed.
Subsystems that are not registered can't have are not involved so can't
have a reason to prevent mounting sysfs.
This is a bug-fix to commit
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Jeff Mahoney
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eee0316497 |
kobject: introduce kobj_completion
A common way to handle kobject lifetimes in embedded in objects with different lifetime rules is to pair the kobject with a struct completion. This introduces a kobj_completion structure that can be used in place of the pairing, along with several convenience functions for initialization, release, and put-and-wait. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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cb26a31157 |
sysfs: drop kobj_ns_type handling
The way namespace tags are implemented in sysfs is more complicated than necessary. As each tag is a pointer value and required to be non-NULL under a namespace enabled parent, there's no need to record separately what type each tag is or where namespace is enabled. If multiple namespace types are needed, which currently aren't, we can simply compare the tag to a set of allowed tags in the superblock assuming that the tags, being pointers, won't have the same value across multiple types. Also, whether to filter by namespace tag or not can be trivially determined by whether the node has any tagged children or not. This patch rips out kobj_ns_type handling from sysfs. sysfs no longer cares whether specific type of namespace is enabled or not. If a sysfs_dirent has a non-NULL tag, the parent is marked as needing namespace filtering and the value is tested against the allowed set of tags for the superblock (currently only one but increasing this number isn't difficult) and the sysfs_dirent is ignored if it doesn't match. This removes most kobject namespace knowledge from sysfs proper which will enable proper separation and layering of sysfs. The namespace sanity checks in fs/sysfs/dir.c are replaced by the new sanity check in kobject_namespace(). As this is the only place ktype->namespace() is called for sysfs, this doesn't weaken the sanity check significantly. I omitted converting the sanity check in sysfs_do_create_link_sd(). While the check can be shifted to upper layer, mistakes there are well contained and should be easily visible anyway. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Kay Sievers <kay@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tejun Heo
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e34ff49061 |
sysfs: remove ktype->namespace() invocations in directory code
For some unrecognizable reason, namespace information is communicated
to sysfs through ktype->namespace() callback when there's *nothing*
which needs the use of a callback. The whole sequence of operations
is completely synchronous and sysfs operations simply end up calling
back into the layer which just invoked it in order to find out the
namespace information, which is completely backwards, obfuscates
what's going on and unnecessarily tangles two separate layers.
This patch doesn't remove ktype->namespace() but shifts its handling
to kobject layer. We probably want to get rid of the callback in the
long term.
This patch adds an explicit param to sysfs_{create|rename|move}_dir()
and renames them to sysfs_{create|rename|move}_dir_ns(), respectively.
ktype->namespace() invocations are moved to the calling sites of the
above functions. A new helper kboject_namespace() is introduced which
directly tests kobj_ns_type_operations->type which should give the
same result as testing sysfs_fs_type(parent_sd) and returns @kobj's
namespace tag as necessary. kobject_namespace() is extern as it will
be used from another file in the following patches.
This patch should be an equivalent conversion without any functional
difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linus Torvalds
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c7c4591db6 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace changes from Eric Biederman: "This is an assorted mishmash of small cleanups, enhancements and bug fixes. The major theme is user namespace mount restrictions. nsown_capable is killed as it encourages not thinking about details that need to be considered. A very hard to hit pid namespace exiting bug was finally tracked and fixed. A couple of cleanups to the basic namespace infrastructure. Finally there is an enhancement that makes per user namespace capabilities usable as capabilities, and an enhancement that allows the per userns root to nice other processes in the user namespace" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: userns: Kill nsown_capable it makes the wrong thing easy capabilities: allow nice if we are privileged pidns: Don't have unshare(CLONE_NEWPID) imply CLONE_THREAD userns: Allow PR_CAPBSET_DROP in a user namespace. namespaces: Simplify copy_namespaces so it is clear what is going on. pidns: Fix hang in zap_pid_ns_processes by sending a potentially extra wakeup sysfs: Restrict mounting sysfs userns: Better restrictions on when proc and sysfs can be mounted vfs: Don't copy mount bind mounts of /proc/<pid>/ns/mnt between namespaces kernel/nsproxy.c: Improving a snippet of code. proc: Restrict mounting the proc filesystem vfs: Lock in place mounts from more privileged users |
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Eric W. Biederman
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7dc5dbc879 |
sysfs: Restrict mounting sysfs
Don't allow mounting sysfs unless the caller has CAP_SYS_ADMIN rights over the net namespace. The principle here is if you create or have capabilities over it you can mount it, otherwise you get to live with what other people have mounted. Instead of testing this with a straight forward ns_capable call, perform this check the long and torturous way with kobject helpers, this keeps direct knowledge of namespaces out of sysfs, and preserves the existing sysfs abstractions. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> |
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Russell King
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c817a67ecb |
kobject: delayed kobject release: help find buggy drivers
Implement debugging for kobject release functions. kobjects are reference counted, so the drop of the last reference to them is not predictable. However, the common case is for the last reference to be the kobject's removal from a subsystem, which results in the release function being immediately called. This can hide subtle bugs, which can occur when another thread holds a reference to the kobject at the same time that a kobject is removed. This results in the release method being delayed. In order to make these kinds of problems more visible, the following patch implements a delayed release; this has the effect that the release function will be out of order with respect to the removal of the kobject in the same manner that it would be if a reference was being held. This provides us with an easy way to allow driver writers to debug their drivers and fix otherwise hidden problems. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
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b7165ebbf0 |
kobject: sanitize argument for format string
Unlike kobject_set_name(), the kset_create_and_add() interface does not provide a way to use format strings, so make sure that the interface cannot be abused accidentally. It looks like all current callers use static strings, so there's no existing flaw. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Anatol Pomozov
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2d864e4171 |
kref: minor cleanup
- make warning smp-safe - result of atomic _unless_zero functions should be checked by caller to avoid use-after-free error - trivial whitespace fix. Link: https://lkml.org/lkml/2013/4/12/391 Tested: compile x86, boot machine and run xfstests Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> [ Removed line-break, changed to use WARN_ON_ONCE() - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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a49b7e82ca |
kobject: fix kset_find_obj() race with concurrent last kobject_put()
Anatol Pomozov identified a race condition that hits module unloading
and re-loading. To quote Anatol:
"This is a race codition that exists between kset_find_obj() and
kobject_put(). kset_find_obj() might return kobject that has refcount
equal to 0 if this kobject is freeing by kobject_put() in other
thread.
Here is timeline for the crash in case if kset_find_obj() searches for
an object tht nobody holds and other thread is doing kobject_put() on
the same kobject:
THREAD A (calls kset_find_obj()) THREAD B (calls kobject_put())
splin_lock()
atomic_dec_return(kobj->kref), counter gets zero here
... starts kobject cleanup ....
spin_lock() // WAIT thread A in kobj_kset_leave()
iterate over kset->list
atomic_inc(kobj->kref) (counter becomes 1)
spin_unlock()
spin_lock() // taken
// it does not know that thread A increased counter so it
remove obj from list
spin_unlock()
vfree(module) // frees module object with containing kobj
// kobj points to freed memory area!!
kobject_put(kobj) // OOPS!!!!
The race above happens because module.c tries to use kset_find_obj()
when somebody unloads module. The module.c code was introduced in
commit 6494a93d55fa"
Anatol supplied a patch specific for module.c that worked around the
problem by simply not using kset_find_obj() at all, but rather than make
a local band-aid, this just fixes kset_find_obj() to be thread-safe
using the proper model of refusing the get a new reference if the
refcount has already dropped to zero.
See examples of this proper refcount handling not only in the kref
documentation, but in various other equivalent uses of this pattern by
grepping for atomic_inc_not_zero().
[ Side note: the module race does indicate that module loading and
unloading is not properly serialized wrt sysfs information using the
module mutex. That may require further thought, but this is the
correct fix at the kobject layer regardless. ]
Reported-analyzed-and-tested-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Zhi Yong Wu
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9ff1f838e9 |
kobject: fix the uncorrect comment
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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eb1574270a |
Merge 3.4-rc5 into driver-core-next
This was done to resolve a merge issue with the init/main.c file. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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yan
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6b9606106b |
lib/kobject.c : Remove redundant check in create_dir
create_dir is a static function used only in kobject_add_internal. There's no need to do check here, for kobject_add_internal will reject kobject with invalid name. Signed-off-by: Yan Hong <clouds.yan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dan Williams
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282029c005 |
kobject: provide more diagnostic info for kobject_add_internal() failures
1/ convert open-coded KERN_ERR+dump_stack() to WARN(), so that automated
tools pick up this warning.
2/ include the 'child' and 'parent' kobject names. This information was
useful for tracking down the case where scsi invoked device_del() on a
parent object and subsequently invoked device_add() on a child. Now the
warning looks like:
kobject_add_internal failed for target8:0:16 (error: -2 parent: end_device-8:0:24)
Pid: 2942, comm: scsi_scan_8 Not tainted 3.3.0-rc7-isci+ #2
Call Trace:
[<ffffffff8125e551>] kobject_add_internal+0x1c1/0x1f3
[<ffffffff81075149>] ? trace_hardirqs_on+0xd/0xf
[<ffffffff8125e659>] kobject_add_varg+0x41/0x50
[<ffffffff8125e723>] kobject_add+0x64/0x66
[<ffffffff8131124b>] device_add+0x12d/0x63a
[<ffffffff8125e0ef>] ? kobject_put+0x4c/0x50
[<ffffffff8132f370>] scsi_sysfs_add_sdev+0x4e/0x28a
[<ffffffff8132dce3>] do_scan_async+0x9c/0x145
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Paul Gortmaker
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8bc3bcc93a |
lib: reduce the use of module.h wherever possible
For files only using THIS_MODULE and/or EXPORT_SYMBOL, map them onto including export.h -- or if the file isn't even using those, then just delete the include. Fix up any implicit include dependencies that were being masked by module.h along the way. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
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Kay Sievers
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b3e8d7b247 |
kobject: remove kset_find_obj_hinted()
Now that there are no in-kernel users of this function, remove it as it is no longer needed. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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Al Viro
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a685e08987 |
Delay struct net freeing while there's a sysfs instance refering to it
* new refcount in struct net, controlling actual freeing of the memory * new method in kobj_ns_type_operations (->drop_ns()) * ->current_ns() semantics change - it's supposed to be followed by corresponding ->drop_ns(). For struct net in case of CONFIG_NET_NS it bumps the new refcount; net_drop_ns() decrements it and calls net_free() if the last reference has been dropped. Method renamed to ->grab_current_ns(). * old net_free() callers call net_drop_ns() instead. * sysfs_exit_ns() is gone, along with a large part of callchain leading to it; now that the references stored in ->ns[...] stay valid we do not need to hunt them down and replace them with NULL. That fixes problems in sysfs_lookup() and sysfs_readdir(), along with getting rid of sb->s_instances abuse. Note that struct net *shutdown* logics has not changed - net_cleanup() is called exactly when it used to be called. The only thing postponed by having a sysfs instance refering to that struct net is actual freeing of memory occupied by struct net. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Robin Holt
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c25d1dfbd4 |
kobject: Introduce kset_find_obj_hinted.
One call chain getting to kset_find_obj is:
link_mem_sections()
find_mem_section()
kset_find_obj()
This is done during boot. The memory sections were added in a linearly
increasing order and link_mem_sections tends to utilize them in that
same linear order.
Introduce a kset_find_obj_hinted which is passed the result of the
previous kset_find_obj which it uses for a quick "is the next object
our desired object" check before falling back to the old behavior.
Signed-off-by: Robin Holt <holt@sgi.com>
To: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Serge E. Hallyn
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be867b194a |
sysfs: Comment sysfs directory tagging logic
Add some in-line comments to explain the new infrastructure, which was introduced to support sysfs directory tagging with namespaces. I think an overall description someplace might be good too, but it didn't really seem to fit into Documentation/filesystems/sysfs.txt, which appears more geared toward users, rather than maintainers, of sysfs. (Tejun, please let me know if I can make anything clearer or failed altogether to comment something that should be commented.) Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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Eric W. Biederman
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3ff195b011 |
sysfs: Implement sysfs tagged directory support.
The problem. When implementing a network namespace I need to be able to have multiple network devices with the same name. Currently this is a problem for /sys/class/net/*, /sys/devices/virtual/net/*, and potentially a few other directories of the form /sys/ ... /net/*. What this patch does is to add an additional tag field to the sysfs dirent structure. For directories that should show different contents depending on the context such as /sys/class/net/, and /sys/devices/virtual/net/ this tag field is used to specify the context in which those directories should be visible. Effectively this is the same as creating multiple distinct directories with the same name but internally to sysfs the result is nicer. I am calling the concept of a single directory that looks like multiple directories all at the same path in the filesystem tagged directories. For the networking namespace the set of directories whose contents I need to filter with tags can depend on the presence or absence of hotplug hardware or which modules are currently loaded. Which means I need a simple race free way to setup those directories as tagged. To achieve a reace free design all tagged directories are created and managed by sysfs itself. Users of this interface: - define a type in the sysfs_tag_type enumeration. - call sysfs_register_ns_types with the type and it's operations - sysfs_exit_ns when an individual tag is no longer valid - Implement mount_ns() which returns the ns of the calling process so we can attach it to a sysfs superblock. - Implement ktype.namespace() which returns the ns of a syfs kobject. Everything else is left up to sysfs and the driver layer. For the network namespace mount_ns and namespace() are essentially one line functions, and look to remain that. Tags are currently represented a const void * pointers as that is both generic, prevides enough information for equality comparisons, and is trivial to create for current users, as it is just the existing namespace pointer. The work needed in sysfs is more extensive. At each directory or symlink creating I need to check if the directory it is being created in is a tagged directory and if so generate the appropriate tag to place on the sysfs_dirent. Likewise at each symlink or directory removal I need to check if the sysfs directory it is being removed from is a tagged directory and if so figure out which tag goes along with the name I am deleting. Currently only directories which hold kobjects, and symlinks are supported. There is not enough information in the current file attribute interfaces to give us anything to discriminate on which makes it useless, and there are no potential users which makes it an uninteresting problem to solve. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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Eric W. Biederman
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bc451f2058 |
kobj: Add basic infrastructure for dealing with namespaces.
Move complete knowledge of namespaces into the kobject layer so we can use that information when reporting kobjects to userspace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |