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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-08-09 03:14:06 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-08-09 09:57:56 +0400 |
| commit | dbe6a5ff4fa78bdfa983458c338831d91b35f315 (patch) | |
| tree | 9cb566091b008512cdee731cb5502794c9d06c1a /fs/f2fs/node.h | |
| parent | c2d715d144af7209d035d0fe0b20a7a591c22c21 (diff) | |
| download | linux-dbe6a5ff4fa78bdfa983458c338831d91b35f315.tar.xz | |
f2fs: fix the use of XATTR_NODE_OFFSET
This patch fixes the use of XATTR_NODE_OFFSET.
o The offset should not use several MSB bits which are used by marking node
blocks.
o IS_DNODE should handle XATTR_NODE_OFFSET to avoid potential abnormality
during the fsync call.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/node.h')
| -rw-r--r-- | fs/f2fs/node.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index 87349c4ea0ef..3496bb3e15dc 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -229,6 +229,10 @@ static inline block_t next_blkaddr_of_node(struct page *node_page) static inline bool IS_DNODE(struct page *node_page) { unsigned int ofs = ofs_of_node(node_page); + + if (ofs == XATTR_NODE_OFFSET) + return false; + if (ofs == 3 || ofs == 4 + NIDS_PER_BLOCK || ofs == 5 + 2 * NIDS_PER_BLOCK) return false; |