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author | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-04-17 22:01:55 +0200 |
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committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-04-19 19:56:13 +0200 |
commit | 7643f3fe27729b20e6fcf6b314b00b8b93504356 (patch) | |
tree | 42ef1e80c57a604345d02f4d8fd3c07b02573e9b /fs/f2fs/segment.c | |
parent | f2fs: allow direct io of pinned files for zoned storage (diff) | |
download | linux-7643f3fe27729b20e6fcf6b314b00b8b93504356.tar.xz linux-7643f3fe27729b20e6fcf6b314b00b8b93504356.zip |
f2fs: assign the write hint per stream by default
This reverts commit 930e2607638d ("f2fs: remove obsolete whint_mode"), as we
decide to pass write hints to the disk.
Cc: Hyunchul Lee <cheol.lee@lge.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
-rw-r--r-- | fs/f2fs/segment.c | 76 |
1 files changed, 70 insertions, 6 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index f0da516ba8dc..2206199e8099 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -3364,6 +3364,65 @@ int f2fs_rw_hint_to_seg_type(enum rw_hint hint) } } +/* + * This returns write hints for each segment type. This hints will be + * passed down to block layer as below by default. + * + * User F2FS Block + * ---- ---- ----- + * META WRITE_LIFE_NONE|REQ_META + * HOT_NODE WRITE_LIFE_NONE + * WARM_NODE WRITE_LIFE_MEDIUM + * COLD_NODE WRITE_LIFE_LONG + * ioctl(COLD) COLD_DATA WRITE_LIFE_EXTREME + * extension list " " + * + * -- buffered io + * COLD_DATA WRITE_LIFE_EXTREME + * HOT_DATA WRITE_LIFE_SHORT + * WARM_DATA WRITE_LIFE_NOT_SET + * + * -- direct io + * WRITE_LIFE_EXTREME COLD_DATA WRITE_LIFE_EXTREME + * WRITE_LIFE_SHORT HOT_DATA WRITE_LIFE_SHORT + * WRITE_LIFE_NOT_SET WARM_DATA WRITE_LIFE_NOT_SET + * WRITE_LIFE_NONE " WRITE_LIFE_NONE + * WRITE_LIFE_MEDIUM " WRITE_LIFE_MEDIUM + * WRITE_LIFE_LONG " WRITE_LIFE_LONG + */ +enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, + enum page_type type, enum temp_type temp) +{ + switch (type) { + case DATA: + switch (temp) { + case WARM: + return WRITE_LIFE_NOT_SET; + case HOT: + return WRITE_LIFE_SHORT; + case COLD: + return WRITE_LIFE_EXTREME; + default: + return WRITE_LIFE_NONE; + } + case NODE: + switch (temp) { + case WARM: + return WRITE_LIFE_MEDIUM; + case HOT: + return WRITE_LIFE_NONE; + case COLD: + return WRITE_LIFE_LONG; + default: + return WRITE_LIFE_NONE; + } + case META: + return WRITE_LIFE_NONE; + default: + return WRITE_LIFE_NONE; + } +} + static int __get_segment_type_2(struct f2fs_io_info *fio) { if (fio->type == DATA) @@ -3443,6 +3502,15 @@ static int __get_segment_type_6(struct f2fs_io_info *fio) } } +int f2fs_get_segment_temp(int seg_type) +{ + if (IS_HOT(seg_type)) + return HOT; + else if (IS_WARM(seg_type)) + return WARM; + return COLD; +} + static int __get_segment_type(struct f2fs_io_info *fio) { int type = 0; @@ -3461,12 +3529,8 @@ static int __get_segment_type(struct f2fs_io_info *fio) f2fs_bug_on(fio->sbi, true); } - if (IS_HOT(type)) - fio->temp = HOT; - else if (IS_WARM(type)) - fio->temp = WARM; - else - fio->temp = COLD; + fio->temp = f2fs_get_segment_temp(type); + return type; } |