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authorJingbo Xu <jefflexu@linux.alibaba.com>2023-04-08 01:28:08 +0300
committerGao Xiang <hsiangkao@linux.alibaba.com>2023-04-16 20:15:53 +0300
commit6a318ccd7e083729cbcdbd174d7070f6b7d24130 (patch)
treeaf72523b2e79d248cb90f1f4da1bea6027e69f46 /fs/erofs/erofs_fs.h
parent82bc1ef41d275106a2b5288e4f5b0df19223066a (diff)
downloadlinux-6a318ccd7e083729cbcdbd174d7070f6b7d24130.tar.xz
erofs: enable long extended attribute name prefixes
Let's enable long xattr name prefix feature. Old kernels will just ignore / skip such extended attributes. In addition, in case you don't want to mount such images, add another incompatible feature as an option for this. Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Acked-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230407222808.19670-1-jefflexu@linux.alibaba.com [ Gao Xiang: minor commit message fix. ] Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/erofs_fs.h')
-rw-r--r--fs/erofs/erofs_fs.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 71a4b3c83132..4ec422c2b74f 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -27,6 +27,7 @@
#define EROFS_FEATURE_INCOMPAT_ZTAILPACKING 0x00000010
#define EROFS_FEATURE_INCOMPAT_FRAGMENTS 0x00000020
#define EROFS_FEATURE_INCOMPAT_DEDUPE 0x00000020
+#define EROFS_FEATURE_INCOMPAT_XATTR_PREFIXES 0x00000040
#define EROFS_ALL_FEATURE_INCOMPAT \
(EROFS_FEATURE_INCOMPAT_ZERO_PADDING | \
EROFS_FEATURE_INCOMPAT_COMPR_CFGS | \
@@ -36,7 +37,8 @@
EROFS_FEATURE_INCOMPAT_COMPR_HEAD2 | \
EROFS_FEATURE_INCOMPAT_ZTAILPACKING | \
EROFS_FEATURE_INCOMPAT_FRAGMENTS | \
- EROFS_FEATURE_INCOMPAT_DEDUPE)
+ EROFS_FEATURE_INCOMPAT_DEDUPE | \
+ EROFS_FEATURE_INCOMPAT_XATTR_PREFIXES)
#define EROFS_SB_EXTSLOT_SIZE 16