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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-04-02 09:32:35 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-04-16 14:41:52 -0700 |
| commit | da9953b729c12ece6d35fd15d236457eee679228 (patch) | |
| tree | 22e0d5fad2f8ce942171705537e3bf5185f8b802 /fs/f2fs/data.c | |
| parent | 63bef48fd6c9d3f1ba4f0e23b4da1e007db6a3c0 (diff) | |
| download | linux-da9953b729c12ece6d35fd15d236457eee679228.tar.bz2 | |
f2fs: introduce sysfs/data_io_flag to attach REQ_META/FUA
This patch introduces a way to attach REQ_META/FUA explicitly
to all the data writes given temperature.
-> attach REQ_FUA to Hot Data writes
-> attach REQ_FUA to Hot|Warm Data writes
-> attach REQ_FUA to Hot|Warm|Cold Data writes
-> attach REQ_FUA to Hot|Warm|Cold Data writes as well as
REQ_META to Hot Data writes
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/data.c')
| -rw-r--r-- | fs/f2fs/data.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index cdf2f626bea7..accd28728642 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -513,6 +513,28 @@ void f2fs_submit_bio(struct f2fs_sb_info *sbi, __submit_bio(sbi, bio, type); } +static void __attach_data_io_flag(struct f2fs_io_info *fio) +{ + struct f2fs_sb_info *sbi = fio->sbi; + unsigned int temp_mask = (1 << NR_TEMP_TYPE) - 1; + unsigned int fua_flag = sbi->data_io_flag & temp_mask; + unsigned int meta_flag = (sbi->data_io_flag >> NR_TEMP_TYPE) & + temp_mask; + /* + * data io flag bits per temp: + * REQ_META | REQ_FUA | + * 5 | 4 | 3 | 2 | 1 | 0 | + * Cold | Warm | Hot | Cold | Warm | Hot | + */ + if (fio->type != DATA) + return; + + if ((1 << fio->temp) & meta_flag) + fio->op_flags |= REQ_META; + if ((1 << fio->temp) & fua_flag) + fio->op_flags |= REQ_FUA; +} + static void __submit_merged_bio(struct f2fs_bio_info *io) { struct f2fs_io_info *fio = &io->fio; @@ -520,6 +542,7 @@ static void __submit_merged_bio(struct f2fs_bio_info *io) if (!io->bio) return; + __attach_data_io_flag(fio); bio_set_op_attrs(io->bio, fio->op, fio->op_flags); if (is_read_io(fio->op)) |