From: Dave Chinner <dchinner@xxxxxxxxxx>
[userspace port]
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: Dave Chinner <dchinner@xxxxxxxxxx>
---
include/xfs_ag.h | 6 ++++++
include/xfs_dinode.h | 2 ++
include/xfs_format.h | 2 ++
include/xfs_sb.h | 2 ++
libxfs/xfs_alloc.c | 10 ++++------
libxfs/xfs_ialloc.c | 5 ++---
libxfs/xfs_inode_buf.c | 4 ++--
libxfs/xfs_sb.c | 5 ++---
libxfs/xfs_symlink_remote.c | 5 ++---
9 files changed, 24 insertions(+), 17 deletions(-)
diff --git a/include/xfs_ag.h b/include/xfs_ag.h
index 3fc1098..0fdd410 100644
--- a/include/xfs_ag.h
+++ b/include/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
*/
diff --git a/include/xfs_dinode.h b/include/xfs_dinode.h
index e5869b5..623bbe8 100644
--- a/include/xfs_dinode.h
+++ b/include/xfs_dinode.h
@@ -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
/*
diff --git a/include/xfs_format.h b/include/xfs_format.h
index 997c770..77f6b8b 100644
--- a/include/xfs_format.h
+++ b/include/xfs_format.h
@@ -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
diff --git a/include/xfs_sb.h b/include/xfs_sb.h
index 35061d4..f7b2fe7 100644
--- a/include/xfs_sb.h
+++ b/include/xfs_sb.h
@@ -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.
diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c
index e4fb1ad..8a6725e 100644
--- a/libxfs/xfs_alloc.c
+++ b/libxfs/xfs_alloc.c
@@ -464,7 +464,7 @@ 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);
@@ -494,8 +494,7 @@ 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 = {
@@ -2222,7 +2221,7 @@ 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);
@@ -2252,8 +2251,7 @@ 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 = {
diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c
index afe1a82..b83ad98 100644
--- a/libxfs/xfs_ialloc.c
+++ b/libxfs/xfs_ialloc.c
@@ -1555,7 +1555,7 @@ 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,
@@ -1583,8 +1583,7 @@ 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 = {
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index d245d72..4f29033 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -292,7 +292,7 @@ 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) != ino)
return false;
@@ -313,7 +313,7 @@ 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);
}
diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index 05bc860..bbcf886 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -566,7 +566,7 @@ 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)) {
@@ -629,8 +629,7 @@ 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 = {
diff --git a/libxfs/xfs_symlink_remote.c b/libxfs/xfs_symlink_remote.c
index 539db0c..09ee9d4 100644
--- a/libxfs/xfs_symlink_remote.c
+++ b/libxfs/xfs_symlink_remote.c
@@ -117,7 +117,7 @@ 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);
@@ -145,8 +145,7 @@ 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 = {
--
1.9.0
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