1
0
Fork 0
remarkable-linux/drivers/block
Josef Bacik 05ee6166d7 nbd: handle unexpected replies better
[ Upstream commit 8f3ea35929 ]

If the server or network is misbehaving and we get an unexpected reply
we can sometimes miss the request not being started and wait on a
request and never get a response, or even double complete the same
request.  Fix this by replacing the send_complete completion with just a
per command lock.  Add a per command cookie as well so that we can know
if we're getting a double completion for a previous event.  Also check
to make sure we dont have REQUEUED set as that means we raced with the
timeout handler and need to just let the retry occur.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:26:25 +02:00
..
aoe block: don't set bounce limit in blk_init_queue 2017-06-27 12:13:45 -06:00
drbd drbd: Fix drbd_request_prepare() discard handling 2018-08-24 13:09:09 +02:00
mtip32xx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
paride cdrom: do not call check_disk_change() inside cdrom_open() 2018-05-30 07:52:34 +02:00
rsxx block: pass in queue to inflight accounting 2017-08-09 13:09:16 -06:00
xen-blkback Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
zram License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
DAC960.c block: DAC960: shut up format-overflow warning 2017-07-29 09:00:03 -06:00
DAC960.h
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amiflop.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ataflop.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
brd.c brd: fix overflow in __brd_direct_access 2017-09-25 08:56:05 -06:00
cryptoloop.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
floppy.c block: replace bi_bdev with a gendisk pointer and partitions index 2017-08-23 12:49:55 -06:00
loop.c loop: remember whether sysfs_create_group() was done 2018-07-17 11:39:33 +02:00
loop.h loop: remember whether sysfs_create_group() was done 2018-07-17 11:39:33 +02:00
nbd.c nbd: handle unexpected replies better 2018-09-05 09:26:25 +02:00
null_blk.c block: null_blk: fix 'Invalid parameters' when loading module 2018-05-30 07:52:36 +02:00
pktcdvd.c pktcdvd: Fix a recently introduced NULL pointer dereference 2018-02-16 20:23:08 +01:00
ps3disk.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ps3vram.c block/ps3vram: Check return of ps3vram_cache_init 2017-08-17 23:03:44 +10:00
rbd.c rbd: flush rbd_dev->watch_dwork after watch is unregistered 2018-07-03 11:25:03 +02:00
rbd_types.h rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
skd_main.c skd: Use kmem_cache_free 2017-10-09 08:31:27 -06:00
skd_s1120.h skd: Use __packed only when needed 2017-08-18 08:45:29 -06:00
smart1,2.h fix typos 'comamnd' -> 'command' in comments 2011-02-02 11:31:21 +01:00
sunvdc.c sunvdc: prevent sunvdc panic when mpgroup disk added to guest domain 2017-08-09 22:22:32 -07:00
swim.c block/swim: Fix IO error at end of medium 2018-04-29 11:33:17 +02:00
swim3.c block/swim: Rename macros to avoid inconsistent inverted logic 2018-04-29 11:33:17 +02:00
swim_asm.S
sx8.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
umem.c blk: remove bio_set arg from blk_queue_split() 2017-06-18 12:40:59 -06:00
umem.h
virtio_blk.c virtio_blk: Fix an SG_IO regression 2017-10-27 08:23:21 -06:00
xen-blkfront.c xen-blkfront: move negotiate_mq to cover all cases of new VBDs 2018-05-30 07:52:13 +02:00
xsysace.c block: don't set bounce limit in blk_init_queue 2017-06-27 12:13:45 -06:00
z2ram.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00