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xfs: Use defines for CRC offsets in all cases

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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>
This commit is contained in:
Eric Sandeen 2014-02-27 15:15:27 +11:00 committed by Dave Chinner
parent e0d2c23a25
commit 533b81c875
9 changed files with 24 additions and 17 deletions
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6
fs/xfs/xfs_ag.h
View File

@ -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
*/

10
fs/xfs/xfs_alloc.c
View File

@ -486,7 +486,7 @@ xfs_agfl_read_verify(
return;
agfl_ok = xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agfl, agfl_crc));
XFS_AGFL_CRC_OFF);
agfl_ok = agfl_ok && xfs_agfl_verify(bp);
@ -516,8 +516,7 @@ xfs_agfl_write_verify(
if (bip)
XFS_BUF_TO_AGFL(bp)->agfl_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agfl, agfl_crc));
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGFL_CRC_OFF);
}
const struct xfs_buf_ops xfs_agfl_buf_ops = {
@ -2242,7 +2241,7 @@ xfs_agf_read_verify(
if (xfs_sb_version_hascrc(&mp->m_sb))
agf_ok = xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agf, agf_crc));
XFS_AGF_CRC_OFF);
agf_ok = agf_ok && xfs_agf_verify(mp, bp);
@ -2272,8 +2271,7 @@ xfs_agf_write_verify(
if (bip)
XFS_BUF_TO_AGF(bp)->agf_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agf, agf_crc));
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGF_CRC_OFF);
}
const struct xfs_buf_ops xfs_agf_buf_ops = {

2
fs/xfs/xfs_dinode.h
View File

@ -89,6 +89,8 @@ typedef struct xfs_dinode {
/* structure must be padded to 64 bit alignment */
} xfs_dinode_t;
#define XFS_DINODE_CRC_OFF offsetof(struct xfs_dinode, di_crc)
#define DI_MAX_FLUSH 0xffff
/*

2
fs/xfs/xfs_format.h
View File

@ -145,6 +145,8 @@ struct xfs_dsymlink_hdr {
__be64 sl_lsn;
};
#define XFS_SYMLINK_CRC_OFF offsetof(struct xfs_dsymlink_hdr, sl_crc)
/*
* The maximum pathlen is 1024 bytes. Since the minimum file system
* blocksize is 512 bytes, we can get a max of 3 extents back from

5
fs/xfs/xfs_ialloc.c
View File

@ -1572,7 +1572,7 @@ xfs_agi_read_verify(
if (xfs_sb_version_hascrc(&mp->m_sb))
agi_ok = xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agi, agi_crc));
XFS_AGI_CRC_OFF);
agi_ok = agi_ok && xfs_agi_verify(bp);
if (unlikely(XFS_TEST_ERROR(!agi_ok, mp, XFS_ERRTAG_IALLOC_READ_AGI,
@ -1600,8 +1600,7 @@ xfs_agi_write_verify(
if (bip)
XFS_BUF_TO_AGI(bp)->agi_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_agi, agi_crc));
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGI_CRC_OFF);
}
const struct xfs_buf_ops xfs_agi_buf_ops = {

4
fs/xfs/xfs_inode_buf.c
View File

@ -306,7 +306,7 @@ xfs_dinode_verify(
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!xfs_verify_cksum((char *)dip, mp->m_sb.sb_inodesize,
offsetof(struct xfs_dinode, di_crc)))
XFS_DINODE_CRC_OFF))
return false;
if (be64_to_cpu(dip->di_ino) != ip->i_ino)
return false;
@ -327,7 +327,7 @@ xfs_dinode_calc_crc(
ASSERT(xfs_sb_version_hascrc(&mp->m_sb));
crc = xfs_start_cksum((char *)dip, mp->m_sb.sb_inodesize,
offsetof(struct xfs_dinode, di_crc));
XFS_DINODE_CRC_OFF);
dip->di_crc = xfs_end_cksum(crc);
}

5
fs/xfs/xfs_sb.c
View File

@ -611,7 +611,7 @@ xfs_sb_read_verify(
dsb->sb_crc != 0)) {
if (!xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_sb, sb_crc))) {
XFS_SB_CRC_OFF)) {
/* Only fail bad secondaries on a known V5 filesystem */
if (bp->b_bn == XFS_SB_DADDR ||
xfs_sb_version_hascrc(&mp->m_sb)) {
@ -674,8 +674,7 @@ xfs_sb_write_verify(
if (bip)
XFS_BUF_TO_SBP(bp)->sb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_sb, sb_crc));
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_SB_CRC_OFF);
}
const struct xfs_buf_ops xfs_sb_buf_ops = {

2
fs/xfs/xfs_sb.h
View File

@ -182,6 +182,8 @@ typedef struct xfs_sb {
/* must be padded to 64 bit alignment */
} xfs_sb_t;
#define XFS_SB_CRC_OFF offsetof(struct xfs_sb, sb_crc)
/*
* Superblock - on disk version. Must match the in core version above.
* Must be padded to 64 bit alignment.

5
fs/xfs/xfs_symlink_remote.c
View File

@ -134,7 +134,7 @@ xfs_symlink_read_verify(
return;
if (!xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_dsymlink_hdr, sl_crc)) ||
XFS_SYMLINK_CRC_OFF) ||
!xfs_symlink_verify(bp)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
xfs_buf_ioerror(bp, EFSCORRUPTED);
@ -162,8 +162,7 @@ xfs_symlink_write_verify(
struct xfs_dsymlink_hdr *dsl = bp->b_addr;
dsl->sl_lsn = cpu_to_be64(bip->bli_item.li_lsn);
}
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
offsetof(struct xfs_dsymlink_hdr, sl_crc));
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_SYMLINK_CRC_OFF);
}
const struct xfs_buf_ops xfs_symlink_buf_ops = {