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| author | Chao Yu <yuchao0@huawei.com> | 2018-09-27 23:41:16 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-10-27 11:57:54 -0700 |
| commit | dbb428fbbb59fae08b01fc14d98d320d448877e0 (patch) | |
| tree | a0834d644d492d1aa3b354cbb3bb7bcb440b4a6b /tools/perf/scripts | |
| parent | f6a7a0346c35a6477f7b09b3a2f074e93cdafd7d (diff) | |
Revert: "f2fs: check last page index in cached bio to decide submission"
There is one case that we can leave bio in f2fs, result in hanging
page writeback waiter.
Thread A Thread B
- f2fs_write_cache_pages
- f2fs_submit_page_write
page #0 cached in bio #0 of cold log
- f2fs_submit_page_write
page #1 cached in bio #1 of warm log
- f2fs_write_cache_pages
- f2fs_submit_page_write
bio is full, submit bio #1 contain page #1
- f2fs_submit_merged_write_cond(, page #1)
fail to submit bio #0 due to page #1 is not in any cached bios.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/perf/scripts')
0 files changed, 0 insertions, 0 deletions