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| author | Mark Fasheh <mfasheh@suse.de> | 2012-08-08 22:32:27 +0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-10-09 17:14:45 +0400 |
| commit | f186373fef005cee948a4a39e6a14c2e5f517298 (patch) | |
| tree | 5683c66a7112e56147149f379658517ab18e7689 /fs/btrfs/hash.h | |
| parent | 5a1d7843ca4b3a9009bea87f85ad33854b910aea (diff) | |
| download | linux-f186373fef005cee948a4a39e6a14c2e5f517298.tar.xz | |
btrfs: extended inode refs
This patch adds basic support for extended inode refs. This includes support
for link and unlink of the refs, which basically gets us support for rename
as well.
Inode creation does not need changing - extended refs are only added after
the ref array is full.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Diffstat (limited to 'fs/btrfs/hash.h')
| -rw-r--r-- | fs/btrfs/hash.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/hash.h b/fs/btrfs/hash.h index db2ff9773b99..1d982812ab67 100644 --- a/fs/btrfs/hash.h +++ b/fs/btrfs/hash.h @@ -24,4 +24,14 @@ static inline u64 btrfs_name_hash(const char *name, int len) { return crc32c((u32)~1, name, len); } + +/* + * Figure the key offset of an extended inode ref + */ +static inline u64 btrfs_extref_hash(u64 parent_objectid, const char *name, + int len) +{ + return (u64) crc32c(parent_objectid, name, len); +} + #endif |