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| author | Chao Yu <yuchao0@huawei.com> | 2018-04-04 17:35:13 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-07-08 17:28:21 -0700 |
| commit | cd79eb2b5e451ca0be15338684252aef56dd319d (patch) | |
| tree | ff6cbac64e25fc86e89af9c9139eaf90cc8eff15 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ec034d0f14ca093cf656843fa097350875c3895d (diff) | |
f2fs: remove redundant block plug
For buffered IO, we don't need to use block plug to cache bio,
for direct IO, generic f2fs_direct_IO has already added block
plug, so let's remove redundant one in .write_iter.
As Yunlei described in his patch:
-f2fs_file_write_iter
-blk_start_plug
-__generic_file_write_iter
...
-do_blockdev_direct_IO
-blk_start_plug
...
-blk_finish_plug
...
-blk_finish_plug
which may conduct performance decrease in our platform
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions