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linux/drivers/block
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Alexey Romanov 641608f362 zram: don't retry compress incompressible page 
It doesn't make sense for us to retry to compress an uncompressible page
(comp_len == PAGE_SIZE) in zsmalloc slowpath, because we will be storing
it uncompressed anyway.  We can avoid wasting time on another compression
attempt.  It is enough to take lock (zcomp_stream_get) and execute the
code below.

Link: https://lkml.kernel.org/r/20220824113117.78849-1-avromanov@sberdevices.ru
Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Alexey Romanov <avromanov@sberdevices.ru>
Cc: Dmitry Rokosov <DDRokosov@sberdevices.ru>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-09-11 20:26:02 -07:00
..
aoe block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
drbd block: change the blk_queue_split calling convention 2022-08-02 17:22:53 -06:00
mtip32xx blk-mq: Drop 'reserved' arg of busy_tag_iter_fn 2022-07-06 06:33:53 -06:00
null_blk null_blk: fix ida error handling in null_add_dev() 2022-08-02 17:22:41 -06:00
paride block: Change the type of req_op() and bio_op() into enum req_op 2022-07-14 12:14:30 -06:00
rnbd block/rnbd-srv: Replace sess_dev_list with index_idr 2022-08-02 17:14:50 -06:00
xen-blkback xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
zram zram: don't retry compress incompressible page 2022-09-11 20:26:02 -07:00
amiflop.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
ataflop.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
brd.c block/brd: Use the enum req_op type 2022-07-14 12:14:31 -06:00
floppy.c block/floppy: Fix a sparse warning 2022-07-14 12:14:31 -06:00
Kconfig remove the sx8 block driver 2022-08-02 17:22:46 -06:00
loop.c loop: Check for overflow while configuring loop 2022-08-24 06:52:52 -06:00
Makefile remove the sx8 block driver 2022-08-02 17:22:46 -06:00
n64cart.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
nbd.c nbd: add missing definition of pr_fmt 2022-08-02 17:22:41 -06:00
pktcdvd.c block: change the blk_queue_split calling convention 2022-08-02 17:22:53 -06:00
ps3disk.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
ps3vram.c block: change the blk_queue_split calling convention 2022-08-02 17:22:53 -06:00
rbd_types.h libceph, rbd: replace zero-length array with flexible-array 2020-06-01 13:22:53 +02:00
rbd.c We have a good pile of various fixes and cleanups from Xiubo, Jeff, 2022-08-11 12:41:07 -07:00
sunvdc.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
swim3.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
swim_asm.S
swim.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
ublk_drv.c ublk_drv: do not add a re-issued request aborted previously to ioucmd's task_work 2022-08-16 06:16:19 -06:00
virtio_blk.c virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
xen-blkfront.c xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
z2ram.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00