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authorEric Sandeen <sandeen@sandeen.net>2007-11-23 00:29:42 -0500
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-02-07 02:16:43 -0500
commit71ddabb94a623d1e16e7e66898bf439ff78ecc41 (patch)
treeded37e51148312db71e6a68b18c8bfca49b95112 /fs/xfs/xfs_bmap_btree.c
parenta67d7c5f5d25d0b13a4dfb182697135b014fa478 (diff)
[XFS] optimize XFS_IS_REALTIME_INODE w/o realtime config
Use XFS_IS_REALTIME_INODE in more places, and #define it to 0 if CONFIG_XFS_RT is off. This should be safe because mount checks in xfs_rtmount_init: so if we get mounted w/o CONFIG_XFS_RT, no realtime inodes should be encountered after that. Defining XFS_IS_REALTIME_INODE to 0 saves a bit of stack space, presumeably gcc can optimize around the various "if (0)" type checks: xfs_alloc_file_space -8 xfs_bmap_adjacent -16 xfs_bmapi -8 xfs_bmap_rtalloc -16 xfs_bunmapi -28 xfs_free_file_space -64 xfs_imap +8 <-- ? hmm. xfs_iomap_write_direct -12 xfs_qm_dqusage_adjust -4 xfs_qm_vop_chown_reserve -4 SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30014a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bmap_btree.c')
-rw-r--r--fs/xfs/xfs_bmap_btree.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 32b49ec00fb5..c4181d85605c 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -2062,8 +2062,7 @@ xfs_bmbt_insert(
2062 pcur->bc_private.b.allocated; 2062 pcur->bc_private.b.allocated;
2063 pcur->bc_private.b.allocated = 0; 2063 pcur->bc_private.b.allocated = 0;
2064 ASSERT((cur->bc_private.b.firstblock != NULLFSBLOCK) || 2064 ASSERT((cur->bc_private.b.firstblock != NULLFSBLOCK) ||
2065 (cur->bc_private.b.ip->i_d.di_flags & 2065 XFS_IS_REALTIME_INODE(cur->bc_private.b.ip));
2066 XFS_DIFLAG_REALTIME));
2067 cur->bc_private.b.firstblock = 2066 cur->bc_private.b.firstblock =
2068 pcur->bc_private.b.firstblock; 2067 pcur->bc_private.b.firstblock;
2069 ASSERT(cur->bc_private.b.flist == 2068 ASSERT(cur->bc_private.b.flist ==