Evolution-X-Devices/kernel_xiaomi_mt6781
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82d4befc18e1bef6773c59b13ff6f9a1c54d176f
kernel_xiaomi_mt6781/kernel
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Michel Lespinasse 82d4befc18 UPSTREAM: mmap locking API: add mmap_read_trylock_non_owner() 
Add a couple APIs used by kernel/bpf/stackmap.c only:
- mmap_read_trylock_non_owner()
- mmap_read_unlock_non_owner() (may be called from a work queue).

It's still not ideal that bpf/stackmap subverts the lock ownership in this
way.  Thanks to Peter Zijlstra for suggesting this API as the least-ugly
way of addressing this in the short term.

Change-Id: I2126c9da656dfa59753b280c645c0eb3228ce323
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Davidlohr Bueso <dbueso@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Link: http://lkml.kernel.org/r/20200520052908.204642-8-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-10-12 15:01:33 +01:00
..
bpf
UPSTREAM: mmap locking API: add mmap_read_trylock_non_owner()
2025-10-12 15:01:33 +01:00
cgroup
UPSTREAM: cgroup: fix psi monitor for root cgroup
2025-09-20 03:24:10 +01:00
configs
[ALPS06470980] arm64: configs: mt6768: add vulscan overlay defconfig
2022-01-07 02:00:20 +08:00
debug
Merge 4.19.320 into android-4.19-stable
2024-08-28 09:03:40 +00:00
dma
Merge 4.19.320 into android-4.19-stable
2024-08-28 09:03:40 +00:00
events
BACKPORT: mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2025-10-12 14:53:46 +01:00
gcov
Merge tag 'ASB-2024-07-05_4.19-stable' of https://android.googlesource.com/kernel/common into lineage-21
2024-07-10 00:47:03 +01:00
irq
Merge tag 'ASB-2024-07-05_4.19-stable' of https://android.googlesource.com/kernel/common into lineage-21
2024-07-10 00:47:03 +01:00
livepatch
UPSTREAM: ftrace: Introduce PERMANENT ftrace_ops flag
2025-09-20 03:20:50 +01:00
locking
BACKPORT: locking/lockdep: Remove unused @nested argument from lock_release()
2025-10-12 15:01:32 +01:00
power
BACKPORT: mm: introduce include/linux/pgtable.h
2025-10-12 14:59:59 +01:00
printk
BACKPORT: locking/lockdep: Remove unused @nested argument from lock_release()
2025-10-12 15:01:32 +01:00
rcu
BACKPORT: rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
2025-09-20 03:22:16 +01:00
sched
BACKPORT: locking/lockdep: Remove unused @nested argument from lock_release()
2025-10-12 15:01:32 +01:00
time
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
trace
BACKPORT: mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2025-10-12 14:53:46 +01:00
.gitignore
BACKPORT: Provide in-kernel headers to make extending kernel easier
2019-06-12 12:33:20 +00:00
acct.c
BACKPORT: mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2025-10-12 14:53:46 +01:00
async.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-09-05 10:26:28 +02:00
audit_tree.c
audit: Embed key into chunk
2019-12-13 08:51:11 +01:00
audit_watch.c
audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()
2023-11-28 16:46:34 +00:00
audit.c
Merge tag 'ASB-2024-05-05_4.19-stable' of https://android.googlesource.com/kernel/common into lineage-21
2024-06-02 19:25:21 +01:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditsc.c
audit: fix possible soft lockup in __audit_inode_child()
2023-09-23 10:48:04 +02:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2018-11-13 11:08:47 -08:00
capability.c
BACKPORT: LSM: add SafeSetID module that gates setid calls
2025-09-20 03:24:13 +01:00
cfi.c
ANDROID: cfi: fix export symbol types
2020-04-29 19:16:15 +02:00
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-04-05 11:15:39 +02:00
configs.c
…
context_tracking.c
…
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:05:28 +02:00
cpu.c
BACKPORT: locking/lockdep: Remove unused @nested argument from lock_release()
2025-10-12 15:01:32 +01:00
crash_core.c
…
crash_dump.c
…
cred.c
UPSTREAM: SELinux: Remove cred security blob poisoning
2025-09-20 03:23:13 +01:00
delayacct.c
UPSTREAM: delayacct: track delays from thrashing cache pages
2019-03-21 16:25:26 -07:00
dma.c
…
exec_domain.c
…
exit.c
BACKPORT: mm: introduce include/linux/pgtable.h
2025-10-12 14:59:59 +01:00
extable.c
UPSTREAM: bpf: Remove bpf_image tree
2025-09-20 03:21:11 +01:00
fail_function.c
fail_function: Remove a redundant mutex unlock
2020-11-24 13:27:23 +01:00
fork.c
BACKPORT: mm: introduce include/linux/pgtable.h
2025-10-12 14:59:59 +01:00
freezer.c
…
futex.c
BACKPORT: mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2025-10-12 14:53:46 +01:00
gen_kheaders.sh
[ALPS05148405] [Do NOT Sync]Merge branch android-4.19 into alps-trunk-r0.basic
2021-01-29 00:04:26 +08:00
groups.c
BACKPORT: mm: remove the pgprot argument to __vmalloc
2025-09-20 03:21:38 +01:00
hung_task.c
kernel: hung_task.c: disable on suspend
2019-04-20 09:16:02 +02:00
iomem.c
…
irq_work.c
UPSTREAM: irq_work: Convert flags to atomic_t
2025-09-20 03:20:43 +01:00
jump_label.c
locking/static_key: Fix false positive warnings on concurrent dec/inc
2021-03-04 09:39:30 +01:00
kallsyms.c
Merge 4.19.133 into android-4.19-stable
2020-07-17 07:54:52 +02:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
BACKPORT: bpf: introduce bpf_spin_lock
2025-09-20 03:19:30 +01:00
Kconfig.preempt
…
kcov.c
UPSTREAM: kcov: remote coverage support
2020-01-15 14:51:23 +00:00
kexec_core.c
BACKPORT: objtool: Rename frame.h -> objtool.h
2025-10-12 13:56:31 +01:00
kexec_file.c
kexec: support purgatories with .text.hot sections
2023-06-21 15:39:57 +02:00
kexec_internal.h
…
kexec.c
…
kheaders.c
UPSTREAM: kheaders: Use array declaration instead of char
2024-01-29 15:46:25 +00:00
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:48:52 +02:00
kprobes.c
UPSTREAM: x86/ibt,ftrace: Search for __fentry__ location
2025-10-12 13:55:27 +01:00
ksysfs.c
…
kthread.c
Merge 4.19.323 into android-4.19-stable
2024-11-09 11:24:17 +00:00
latencytop.c
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
Makefile
BACKPORT: bpf: Add kernel module with user mode driver that populates bpffs.
2025-09-20 03:22:02 +01:00
memremap.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-29 16:43:27 +01:00
module_signing.c
…
module-internal.h
…
module.c
BACKPORT: mm: remove the pgprot argument to __vmalloc
2025-09-20 03:21:38 +01:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-03-25 08:06:13 +01:00
nsproxy.c
…
padata.c
Merge branch 'linux-4.19.y-cip' of https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip into lineage-22.1
2025-06-01 18:10:49 +01:00
panic.c
Merge 4.19.272 into android-4.19-stable
2023-02-06 08:16:47 +01:00
params.c
Merge branch 'linux-4.19.y-cip' of https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip into lineage-22.2
2025-08-04 15:06:56 +01:00
pid_namespace.c
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
pid.c
UPSTREAM: pid: add pidfd_open()
2019-08-12 13:36:37 -04:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-25 11:15:20 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-14 16:59:14 +02:00
range.c
…
reboot.c
Merge 4.19.158 into android-4.19-stable
2020-11-19 12:25:33 +01:00
relay.c
relayfs: fix out-of-bounds access in relay_file_read
2023-05-17 11:13:23 +02:00
resource.c
resource: fix locking in find_next_iomem_res()
2019-09-16 08:22:20 +02:00
rseq.c
…
scs.c
FROMLIST: scs: add support for stack usage debugging
2019-11-27 12:37:25 -08:00
seccomp.c
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
signal.c
Merge branch 'android-4.19-stable' of https://android.googlesource.com/kernel/common into lineage-21
2024-12-17 21:41:20 +00:00
smp.c
smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()
2024-09-12 11:02:53 +02:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 14:48:38 +01:00
smpboot.h
…
softirq.c
UPSTREAM: rcu: Apply RCU-bh QSes to RCU-sched and RCU-preempt when safe
2025-09-20 03:20:11 +01:00
stacktrace.c
UPSTREAM: stacktrace: Provide helpers for common stack trace operations
2025-09-20 03:21:46 +01:00
stop_machine.c
…
sys_ni.c
Merge 4.19.257 into android-4.19-stable
2022-09-21 10:22:14 +02:00
sys.c
BACKPORT: mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2025-10-12 14:53:46 +01:00
sysctl_binary.c
…
sysctl.c
BACKPORT: bpf: Sharing bpf runtime stats with BPF_ENABLE_STATS
2025-09-20 03:21:22 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:18:59 +01:00
test_kprobes.c
…
torture.c
…
tracepoint.c
UPSTREAM: module: Fix up module_notifier return values
2025-09-20 03:22:49 +01:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-02-23 11:58:39 +01:00
ucount.c
…
uid16.c
…
uid16.h
…
umh.c
UPSTREAM: umh: Separate the user mode driver and the user mode helper support
2025-09-20 03:22:01 +01:00
up.c
[ALPS06486924] ACK: Merge android-4.19-stable into alps-mp-s0.mp1
2022-01-20 11:18:48 +08:00
user_namespace.c
userns: also map extents in the reverse map to kernel IDs
2018-11-13 11:09:00 -08:00
user-return-notifier.c
…
user.c
ANDROID: proc: Add /proc/uid directory
2019-03-06 15:59:21 +00:00
usermode_driver.c
UPSTREAM: bpf: Fix umd memory leak in copy_process()
2025-09-20 03:22:45 +01:00
utsname_sysctl.c
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
utsname.c
…
watchdog_hld.c
watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
2024-08-19 05:32:05 +02:00
watchdog.c
BACKPORT: sysctl: pass kernel pointers to ->proc_handler
2025-09-20 03:21:20 +01:00
workqueue_internal.h
UPSTREAM: psi: fix aggregation idle shut-off
2019-03-21 16:25:27 -07:00
workqueue.c
Merge 4.19.297 into android-4.19-stable
2023-10-25 11:43:43 +00:00