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| author | Chao Yu <yuchao0@huawei.com> | 2021-05-12 04:07:19 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-05-26 16:00:36 +0200 |
| commit | 8939a8489ca64b56f49428b0d882709080a928d4 (patch) | |
| tree | e6e05c9d0aa6dc78ae711fab1d00808e39355086 /fs/f2fs/sysfs.c | |
| parent | f2fs: compress: fix to disallow temp extension (diff) | |
| download | linux-8939a8489ca64b56f49428b0d882709080a928d4.tar.xz linux-8939a8489ca64b56f49428b0d882709080a928d4.zip | |
f2fs: atgc: export entries for better tunability via sysfs
This patch export below sysfs entries for better ATGC tunability.
/sys/fs/f2fs/<disk>/atgc_candidate_ratio
/sys/fs/f2fs/<disk>/atgc_candidate_count
/sys/fs/f2fs/<disk>/atgc_age_weight
/sys/fs/f2fs/<disk>/atgc_age_threshold
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 39b522ec73e7..dc71bc968c72 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -37,6 +37,7 @@ enum { #endif RESERVED_BLOCKS, /* struct f2fs_sb_info */ CPRC_INFO, /* struct ckpt_req_control */ + ATGC_INFO, /* struct atgc_management */ }; struct f2fs_attr { @@ -75,6 +76,8 @@ static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) #endif else if (struct_type == CPRC_INFO) return (unsigned char *)&sbi->cprc_info; + else if (struct_type == ATGC_INFO) + return (unsigned char *)&sbi->am; return NULL; } @@ -495,6 +498,20 @@ out: } #endif + if (!strcmp(a->attr.name, "atgc_candidate_ratio")) { + if (t > 100) + return -EINVAL; + sbi->am.candidate_ratio = t; + return count; + } + + if (!strcmp(a->attr.name, "atgc_age_weight")) { + if (t > 100) + return -EINVAL; + sbi->am.age_weight = t; + return count; + } + *ui = (unsigned int)t; return count; @@ -710,6 +727,11 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_saved_block, compr_saved_block); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_new_inode, compr_new_inode); #endif +/* For ATGC */ +F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_ratio, candidate_ratio); +F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_count, max_candidate_count); +F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_weight, age_weight); +F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -778,6 +800,11 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(compr_saved_block), ATTR_LIST(compr_new_inode), #endif + /* For ATGC */ + ATTR_LIST(atgc_candidate_ratio), + ATTR_LIST(atgc_candidate_count), + ATTR_LIST(atgc_age_weight), + ATTR_LIST(atgc_age_threshold), NULL, }; ATTRIBUTE_GROUPS(f2fs); |