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xfs: fixes for 3.10-rc6 

- Remove noisy warnings about experimental support which spams the logs
 - Add padding to align directory and attr structures correctly
 - Set block number on child buffer on a root btree split
 - Disable verifiers during log recovery for non-CRC filesystems
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Merge tag 'for-linus-v3.10-rc6' of git://oss.sgi.com/xfs/xfs

Pull xfs fixes from Ben Myers:
 - Remove noisy warnings about experimental support which spams the logs
 - Add padding to align directory and attr structures correctly
 - Set block number on child buffer on a root btree split
 - Disable verifiers during log recovery for non-CRC filesystems

* tag 'for-linus-v3.10-rc6' of git://oss.sgi.com/xfs/xfs:
  xfs: don't shutdown log recovery on validation errors
  xfs: ensure btree root split sets blkno correctly
  xfs: fix implicit padding in directory and attr CRC formats
  xfs: don't emit v5 superblock warnings on write
This commit is contained in:
Linus Torvalds 2013-06-14 19:16:31 -10:00
parent 9bb92855e3 d302cf1d31
commit d58c6ff0b7
5 changed files with 42 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/xfs/xfs_attr_leaf.h
View File

@ -128,6 +128,7 @@ struct xfs_attr3_leaf_hdr {
__u8 holes;
__u8 pad1;
struct xfs_attr_leaf_map freemap[XFS_ATTR_LEAF_MAPSIZE];
__be32 pad2; /* 64 bit alignment */
};
#define XFS_ATTR3_LEAF_CRC_OFF (offsetof(struct xfs_attr3_leaf_hdr, info.crc))

10
fs/xfs/xfs_btree.c
View File

@ -2544,7 +2544,17 @@ xfs_btree_new_iroot(
if (error)
goto error0;
/*
* we can't just memcpy() the root in for CRC enabled btree blocks.
* In that case have to also ensure the blkno remains correct
*/
memcpy(cblock, block, xfs_btree_block_len(cur));
if (cur->bc_flags & XFS_BTREE_CRC_BLOCKS) {
if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
cblock->bb_u.l.bb_blkno = cpu_to_be64(cbp->b_bn);
else
cblock->bb_u.s.bb_blkno = cpu_to_be64(cbp->b_bn);
}
be16_add_cpu(&block->bb_level, 1);
xfs_btree_set_numrecs(block, 1);

5
fs/xfs/xfs_dir2_format.h
View File

@ -266,6 +266,7 @@ struct xfs_dir3_blk_hdr {
struct xfs_dir3_data_hdr {
struct xfs_dir3_blk_hdr hdr;
xfs_dir2_data_free_t best_free[XFS_DIR2_DATA_FD_COUNT];
__be32 pad; /* 64 bit alignment */
};
#define XFS_DIR3_DATA_CRC_OFF offsetof(struct xfs_dir3_data_hdr, hdr.crc)
@ -477,7 +478,7 @@ struct xfs_dir3_leaf_hdr {
struct xfs_da3_blkinfo info; /* header for da routines */
__be16 count; /* count of entries */
__be16 stale; /* count of stale entries */
__be32 pad;
__be32 pad; /* 64 bit alignment */
};
struct xfs_dir3_icleaf_hdr {
@ -715,7 +716,7 @@ struct xfs_dir3_free_hdr {
__be32 firstdb; /* db of first entry */
__be32 nvalid; /* count of valid entries */
__be32 nused; /* count of used entries */
__be32 pad; /* 64 bit alignment. */
__be32 pad; /* 64 bit alignment */
};
struct xfs_dir3_free {

19
fs/xfs/xfs_log_recover.c
View File

@ -1845,7 +1845,13 @@ xlog_recover_do_inode_buffer(
xfs_agino_t *buffer_nextp;
trace_xfs_log_recover_buf_inode_buf(mp->m_log, buf_f);
bp->b_ops = &xfs_inode_buf_ops;
/*
* Post recovery validation only works properly on CRC enabled
* filesystems.
*/
if (xfs_sb_version_hascrc(&mp->m_sb))
bp->b_ops = &xfs_inode_buf_ops;
inodes_per_buf = BBTOB(bp->b_io_length) >> mp->m_sb.sb_inodelog;
for (i = 0; i < inodes_per_buf; i++) {
@ -2205,7 +2211,16 @@ xlog_recover_do_reg_buffer(
/* Shouldn't be any more regions */
ASSERT(i == item->ri_total);
xlog_recovery_validate_buf_type(mp, bp, buf_f);
/*
* We can only do post recovery validation on items on CRC enabled
* fielsystems as we need to know when the buffer was written to be able
* to determine if we should have replayed the item. If we replay old
* metadata over a newer buffer, then it will enter a temporarily
* inconsistent state resulting in verification failures. Hence for now
* just avoid the verification stage for non-crc filesystems
*/
if (xfs_sb_version_hascrc(&mp->m_sb))
xlog_recovery_validate_buf_type(mp, bp, buf_f);
}
/*

18
fs/xfs/xfs_mount.c
View File

@ -314,7 +314,8 @@ STATIC int
xfs_mount_validate_sb(
xfs_mount_t *mp,
xfs_sb_t *sbp,
bool check_inprogress)
bool check_inprogress,
bool check_version)
{
/*
@ -337,9 +338,10 @@ xfs_mount_validate_sb(
/*
* Version 5 superblock feature mask validation. Reject combinations the
* kernel cannot support up front before checking anything else.
* kernel cannot support up front before checking anything else. For
* write validation, we don't need to check feature masks.
*/
if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) {
if (check_version && XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) {
xfs_alert(mp,
"Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!\n"
"Use of these features in this kernel is at your own risk!");
@ -675,7 +677,8 @@ xfs_sb_to_disk(
static int
xfs_sb_verify(
struct xfs_buf *bp)
struct xfs_buf *bp,
bool check_version)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_sb sb;
@ -686,7 +689,8 @@ xfs_sb_verify(
* Only check the in progress field for the primary superblock as
* mkfs.xfs doesn't clear it from secondary superblocks.
*/
return xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR);
return xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR,
check_version);
}
/*
@ -719,7 +723,7 @@ xfs_sb_read_verify(
goto out_error;
}
}
error = xfs_sb_verify(bp);
error = xfs_sb_verify(bp, true);
out_error:
if (error) {
@ -758,7 +762,7 @@ xfs_sb_write_verify(
struct xfs_buf_log_item *bip = bp->b_fspriv;
int error;
error = xfs_sb_verify(bp);
error = xfs_sb_verify(bp, false);
if (error) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
xfs_buf_ioerror(bp, error);