diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_format.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 9590a06..8568de1 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -60,6 +60,14 @@ struct xfs_ifork; #define XFS_SB_VERSION_MOREBITSBIT 0x8000 /* + * The size of a single extended attribute on disk is limited by + * the size of index values within the attribute entries themselves. + * These are be16 fields, so we can only support attribute data + * sizes up to 2^16 bytes in length. + */ +#define XFS_XATTR_SIZE_MAX (1 << 16) + +/* * Supported feature bit list is just all bits in the versionnum field because * we've used them all up and understand them all. Except, of course, for the * shared superblock bit, which nobody knows what it does and so is unsupported. @@ -1483,7 +1491,7 @@ struct xfs_acl { */ #define XFS_ACL_MAX_ENTRIES(mp) \ (xfs_sb_version_hascrc(&mp->m_sb) \ - ? (XATTR_SIZE_MAX - sizeof(struct xfs_acl)) / \ + ? (XFS_XATTR_SIZE_MAX - sizeof(struct xfs_acl)) / \ sizeof(struct xfs_acl_entry) \ : 25) |
