diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-09-06 16:20:03 -0700 |
|---|---|---|
| committer | Peter Kalauskas <peskal@google.com> | 2018-08-24 08:17:23 -0700 |
| commit | 5116f2cd6b5ce3647b346811619e8789413f329b (patch) | |
| tree | 4969b41a86e29798482745c9db7292de5c264733 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | a1156cbb71f4ed745f8a14719d9307813e3c9151 (diff) | |
BACKPORT: zram: write incompressible pages to backing device
This patch enables write IO to transfer data to backing device. For
that, it implements write_to_bdev function which creates new bio and
chaining with parent bio to make the parent bio asynchrnous.
For rw_page which don't have parent bio, it submit owned bio and handle
IO completion by zram_page_end_io.
Also, this patch defines new flag ZRAM_WB to mark written page for later
read IO.
[xieyisheng1@huawei.com: fix typo in comment]
Link: http://lkml.kernel.org/r/1502707447-6944-2-git-send-email-xieyisheng1@huawei.com
Link: http://lkml.kernel.org/r/1498459987-24562-8-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
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 db8ffbd4e7634cc537c8d32e73e7ce0f06248645)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: Ie675efd6c3ec04a151443f1cd0bf798d4847710f
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions