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| author | Chao Yu <yuchao0@huawei.com> | 2018-10-22 09:12:51 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-10-22 17:53:48 -0700 |
| commit | 4c58ed076875f36dae0f240da1e25e99e5d4afb8 (patch) | |
| tree | fc4e43260670c1dfe95510e247be3597fb73b00b /tools/perf/scripts/python/check-perf-trace.py | |
| parent | b93f654d73fa09088041efa77972b1d616a75fcb (diff) | |
f2fs: fix to account IO correctly
Below race can cause reversed reference on dirty count, fix it by
relocating __submit_bio() and inc_page_count().
Thread A Thread B
- f2fs_inplace_write_data
- f2fs_submit_page_bio
- __submit_bio
- f2fs_write_end_io
- dec_page_count
- inc_page_count
Cc: <stable@vger.kernel.org>
Fixes: d1b3e72d5490 ("f2fs: submit bio of in-place-update pages")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions