diff options
| author | Gao Xiang <hsiangkao@linux.alibaba.com> | 2022-09-23 09:49:15 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2022-09-26 23:55:43 +0800 |
| commit | 5c2a64252c5dc4cfe78e5b2a531c118894e3d155 (patch) | |
| tree | 356748bce348364c288493b9eeb9de8994b1a95e /fs/erofs/sysfs.c | |
| parent | b15b2e307c3a1970d92da77a3ef57ee53d119d8e (diff) | |
erofs: introduce partial-referenced pclusters
Due to deduplication for compressed data, pclusters can be partially
referenced with their prefixes.
Together with the user-space implementation, it enables EROFS
variable-length global compressed data deduplication with rolling
hash.
Link: https://lore.kernel.org/r/20220923014915.4362-1-hsiangkao@linux.alibaba.com
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/sysfs.c')
| -rw-r--r-- | fs/erofs/sysfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/erofs/sysfs.c b/fs/erofs/sysfs.c index dd6eb7eccf9a..783bb7b21b51 100644 --- a/fs/erofs/sysfs.c +++ b/fs/erofs/sysfs.c @@ -77,6 +77,7 @@ EROFS_ATTR_FEATURE(compr_head2); EROFS_ATTR_FEATURE(sb_chksum); EROFS_ATTR_FEATURE(ztailpacking); EROFS_ATTR_FEATURE(fragments); +EROFS_ATTR_FEATURE(dedupe); static struct attribute *erofs_feat_attrs[] = { ATTR_LIST(zero_padding), @@ -88,6 +89,7 @@ static struct attribute *erofs_feat_attrs[] = { ATTR_LIST(sb_chksum), ATTR_LIST(ztailpacking), ATTR_LIST(fragments), + ATTR_LIST(dedupe), NULL, }; ATTRIBUTE_GROUPS(erofs_feat); |