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Groups > linux.kernel > #1471059
| From | Jaegeuk Kim <jaegeuk@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC |
| Date | 2016-08-27 03:00 +0200 |
| Message-ID | <saA8D-61b-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
This can avoid bio splits due to different op_flags. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/data.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 7c8e219..c7c2022 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -267,6 +267,11 @@ void f2fs_submit_page_mbio(struct f2fs_io_info *fio) down_write(&io->io_rwsem); + /* WRITE can be merged into previous WRITE_SYNC */ + if (io->bio && io->last_block_in_bio == fio->new_blkaddr - 1 && + io->fio.op == fio->op && io->fio.op_flags == WRITE_SYNC) + fio->op_flags = WRITE_SYNC; + if (io->bio && (io->last_block_in_bio != fio->new_blkaddr - 1 || (io->fio.op != fio->op || io->fio.op_flags != fio->op_flags))) __submit_merged_bio(io); -- 2.8.3
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[PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Jaegeuk Kim <jaegeuk@kernel.org> - 2016-08-27 03:00 +0200
Re: [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Chao Yu <yuchao0@huawei.com> - 2016-09-02 09:40 +0200
Re: [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Jaegeuk Kim <jaegeuk@kernel.org> - 2016-09-02 20:40 +0200
Re: [f2fs-dev] [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Chao Yu <chao@kernel.org> - 2016-09-07 16:20 +0200
Re: [f2fs-dev] [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Jaegeuk Kim <jaegeuk@kernel.org> - 2016-09-08 02:30 +0200
Re: [f2fs-dev] [PATCH] f2fs: merge WRITE bio into previous WRITE_SYNC Chao Yu <chao@kernel.org> - 2016-09-08 18:10 +0200
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