Josef Bacik 4b7c09a5f7 nbd: only set MSG_MORE when we have more to send ...

[ Upstream commit d61b7f972dab2a7d187c38254845546dfc8eed85 ]

A user noticed that write performance was horrible over loopback and we
traced it to an inversion of when we need to set MSG_MORE.  It should be
set when we have more bvec's to send, not when we are on the last bvec.
This patch made the test go from 20 iops to 78k iops.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Fixes: 429a787be679 ("nbd: fix use-after-free of rq/bio in the xmit path")
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2018-11-10 07:42:52 -08:00

..

aoe

aoe: fix crash in page count manipulation

2016-11-12 08:27:07 -07:00

drbd

drbd: fix access after free

2018-07-11 16:26:43 +02:00

mtip32xx

Revert "mtip32xx: use runtime tag to initialize command header"

2018-04-08 12:13:01 +02:00

paride

cdrom: do not call check_disk_change() inside cdrom_open()

2018-05-30 07:50:47 +02:00

rsxx

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

xen-blkback

xen/blkback: don't free be structure too early

2017-07-05 14:40:20 +02:00

zram

zram: set physical queue limits to avoid array out of bounds accesses

2017-12-14 09:28:21 +01:00

amiflop.c

block: drop owner assignment from platform_drivers

2014-10-20 16:20:18 +02:00

ataflop.c

Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next

2014-06-02 09:29:34 -07:00

brd.c

block/mm: make bdev_ops->rw_page() take a bool for read/write

2016-08-07 14:41:02 -06:00

cciss_cmd.h

…

cciss_scsi.c

scsi: Do not set cmd_per_lun to 1 in the host template

2015-05-31 18:06:28 -07:00

cciss_scsi.h

…

cciss.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

cciss.h

…

cryptoloop.c

block: cryptoloop - Use new skcipher interface

2016-01-27 20:35:43 +08:00

DAC960.c

block: DAC960: print a hex number after a 0x prefix

2016-10-27 18:43:43 -07:00

DAC960.h

…

floppy.c

floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl

2018-10-03 17:01:49 -07:00

hd.c

block: hd: remove deprecated IRQF_DISABLED

2014-10-01 08:16:07 -06:00

Kconfig

cpqarray: remove it from the kernel

2016-03-14 09:06:01 -06:00

loop.c

loop: remember whether sysfs_create_group() was done

2018-07-17 11:37:54 +02:00

loop.h

loop: remember whether sysfs_create_group() was done

2018-07-17 11:37:54 +02:00

Makefile

drivers:block: cpqarray clean up

2016-03-15 15:59:47 -07:00

mg_disk.c

mg_disk: fix error path in mg_probe()

2016-06-28 11:01:27 -06:00

nbd.c

nbd: only set MSG_MORE when we have more to send

2018-11-10 07:42:52 -08:00

null_blk.c

Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block

2016-10-09 17:29:33 -07:00

osdblk.c

block, drivers: add REQ_OP_FLUSH operation

2016-06-07 13:41:38 -06:00

pktcdvd.c

pktcdvd: Fix pkt_setup_dev() error path

2018-02-17 13:21:19 +01:00

ps3disk.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

ps3vram.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

rbd_types.h

rbd: support for exclusive-lock feature

2016-08-24 23:49:16 +02:00

rbd.c

rbd: flush rbd_dev->watch_dwork after watch is unregistered

2018-07-03 11:23:16 +02:00

skd_main.c

skd: Submit requests to firmware before triggering the doorbell

2017-09-27 14:39:21 +02:00

skd_s1120.h

…

smart1,2.h

…

sunvdc.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

swim3.c

powerpc: Move Power Macintosh drivers to generic byteswappers

2015-03-23 14:29:40 +11:00

swim_asm.S

…

swim.c

block: drop owner assignment from platform_drivers

2014-10-20 16:20:18 +02:00

sx8.c

sx8: use real time for the command seconds

2015-12-23 08:42:59 -07:00

umem.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

umem.h

…

virtio_blk.c

virtio_blk: fix panic in initialization error path

2017-08-11 08:49:36 -07:00

xen-blkfront.c

xen-blkfront: use a right index when checking requests

2017-08-24 17:12:20 -07:00

xsysace.c

block: systemace: Remove .owner field for driver

2014-08-21 20:37:54 -05:00

z2ram.c

block: remove struct request buffer member

2014-04-15 14:03:02 -06:00