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authorEric Sandeen <sandeen@redhat.com>2014-02-27 15:15:27 +1100
committerDave Chinner <david@fromorbit.com>2014-02-27 15:15:27 +1100
commit533b81c875589ad0a2fc116991534b4601195253 (patch)
tree8a8098e03198f28d448bf789f36832970e5255e2 /fs/xfs/xfs_ag.h
parentxfs: skip pointless CRC updates after verifier failures (diff)
downloadlinux-dev-533b81c875589ad0a2fc116991534b4601195253.tar.xz
linux-dev-533b81c875589ad0a2fc116991534b4601195253.zip
xfs: Use defines for CRC offsets in all cases
Some calls to crc functions used useful #defines, others used awkward offsetof() constructs. Switch them all to #define to make things a bit cleaner. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_ag.h')
-rw-r--r--fs/xfs/xfs_ag.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index 3fc109819c34..0fdd4109c624 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -89,6 +89,8 @@ typedef struct xfs_agf {
/* structure must be padded to 64 bit alignment */
} xfs_agf_t;
+#define XFS_AGF_CRC_OFF offsetof(struct xfs_agf, agf_crc)
+
#define XFS_AGF_MAGICNUM 0x00000001
#define XFS_AGF_VERSIONNUM 0x00000002
#define XFS_AGF_SEQNO 0x00000004
@@ -167,6 +169,8 @@ typedef struct xfs_agi {
/* structure must be padded to 64 bit alignment */
} xfs_agi_t;
+#define XFS_AGI_CRC_OFF offsetof(struct xfs_agi, agi_crc)
+
#define XFS_AGI_MAGICNUM 0x00000001
#define XFS_AGI_VERSIONNUM 0x00000002
#define XFS_AGI_SEQNO 0x00000004
@@ -222,6 +226,8 @@ typedef struct xfs_agfl {
__be32 agfl_bno[]; /* actually XFS_AGFL_SIZE(mp) */
} xfs_agfl_t;
+#define XFS_AGFL_CRC_OFF offsetof(struct xfs_agfl, agfl_crc)
+
/*
* tags for inode radix tree
*/