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| author | Alexey Romanov <avromanov@sberdevices.ru> | 2022-05-13 05:23:07 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-05-13 16:20:18 +0200 |
| commit | e7be8d1dd983156bbdd22c0319b71119a8fbb697 (patch) | |
| tree | 906225eaa413147d98d2a5182dc83054de0dbd77 /crypto/deflate.c | |
| parent | percpu: improve percpu_alloc_percpu event trace (diff) | |
| download | linux-e7be8d1dd983156bbdd22c0319b71119a8fbb697.tar.xz linux-e7be8d1dd983156bbdd22c0319b71119a8fbb697.zip | |
zram: remove double compression logic
The 2nd trial allocation under per-cpu presumption has been used to
prevent regression of allocation failure. However, it makes trouble for
maintenance without significant benefit. The slowpath branch is executed
extremely rarely: getting there is problematic. Therefore, we delete this
branch.
Since b09ab054b69b ("zram: support BDI_CAP_STABLE_WRITES"), zram has used
QUEUE_FLAG_STABLE_WRITES to prevent buffer change between 1st and 2nd
memory allocations. Since we remove second trial memory allocation logic,
we could remove the STABLE_WRITES flag because there is no change buffer
to be modified under us.
Link: https://lkml.kernel.org/r/20220505094443.11728-1-avromanov@sberdevices.ru
Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Acked-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'crypto/deflate.c')
0 files changed, 0 insertions, 0 deletions