diff options
| author | David Chinner <dgc@sgi.com> | 2007-06-18 16:50:37 +1000 |
|---|---|---|
| committer | Tim Shimmin <tes@chook.melbourne.sgi.com> | 2007-07-14 15:35:36 +1000 |
| commit | 957d0ebed04239b734552c7da3fae9094b6f090c (patch) | |
| tree | 6f5034b22028a03e31771d1a3fa5ad8d59557c09 /fs/xfs/xfs_rw.h | |
| parent | 84e1e99f112dead8f9ba036c02d24a9f5ce7f544 (diff) | |
[XFS] Cleanup inode extent size hint extraction
SGI-PV: 966004
SGI-Modid: xfs-linux-melb:xfs-kern:28866a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_rw.h')
| -rw-r--r-- | fs/xfs/xfs_rw.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h index ba74000931ec..fcf28dbded7c 100644 --- a/fs/xfs/xfs_rw.h +++ b/fs/xfs/xfs_rw.h @@ -77,6 +77,28 @@ xfs_fsb_to_db_io(struct xfs_iocore *io, xfs_fsblock_t fsb) #define XFS_FREE_EOF_LOCK (1<<0) #define XFS_FREE_EOF_NOLOCK (1<<1) + +/* + * helper function to extract extent size hint from inode + */ +STATIC_INLINE xfs_extlen_t +xfs_get_extsz_hint( + xfs_inode_t *ip) +{ + xfs_extlen_t extsz; + + if (unlikely(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) { + extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) + ? ip->i_d.di_extsize + : ip->i_mount->m_sb.sb_rextsize; + ASSERT(extsz); + } else { + extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) + ? ip->i_d.di_extsize : 0; + } + return extsz; +} + /* * Prototypes for functions in xfs_rw.c. */ |