diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-09-06 16:20:00 -0700 |
|---|---|---|
| committer | Peter Kalauskas <peskal@google.com> | 2018-08-24 08:17:23 -0700 |
| commit | a1156cbb71f4ed745f8a14719d9307813e3c9151 (patch) | |
| tree | b0fde6c75fc6083fe42265995e6e5cc295e4c251 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | b865cfdbdc4a485a4eee44b67757496c28e13978 (diff) | |
BACKPORT: zram: identify asynchronous IO's return value
For upcoming asynchronous IO like writeback, zram_rw_page should be
aware of that whether requested IO was completed or submitted
successfully, otherwise error.
For the goal, zram_bvec_rw has three return values.
-errno: returns error number
0: IO request is done synchronously
1: IO request is issued successfully.
Link: http://lkml.kernel.org/r/1498459987-24562-7-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit ae85a8075c5b025b9d503554ddc480a346a24536)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: Id6e764b3eacfebdca2f46050648a49fc5f276b2c
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions