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| author | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:36:05 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:36:05 +0200 |
| commit | 69ef921b55cc3788d1d2a27b33b27d04acd0090a (patch) | |
| tree | bcc7c1f4b7f15628f122dfdb96f8d4d37f587e92 /fs/xfs/xfs_bmap.c | |
| parent | 218106a1104c598011e5df9d9aac7e0416be03e6 (diff) | |
| download | blackbird-op-linux-69ef921b55cc3788d1d2a27b33b27d04acd0090a.tar.gz blackbird-op-linux-69ef921b55cc3788d1d2a27b33b27d04acd0090a.zip | |
xfs: byteswap constants instead of variables
Micro-optimize various comparisms by always byteswapping the constant
instead of the variable, which allows to do the swap at compile instead
of runtime.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_bmap.c')
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 7b46b78ba3f0..2ce6aa644e7e 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -4083,7 +4083,7 @@ xfs_bmap_sanity_check( { struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp); - if (be32_to_cpu(block->bb_magic) != XFS_BMAP_MAGIC || + if (block->bb_magic != cpu_to_be32(XFS_BMAP_MAGIC) || be16_to_cpu(block->bb_level) != level || be16_to_cpu(block->bb_numrecs) == 0 || be16_to_cpu(block->bb_numrecs) > mp->m_bmap_dmxr[level != 0]) |
