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Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc.c')
-rw-r--r--fs/xfs/libxfs/xfs_ialloc.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 51b4e0de1fdc..f272abff11e1 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2344,7 +2344,8 @@ xfs_imap(
imap->im_blkno = XFS_AGB_TO_DADDR(mp, agno, agbno);
imap->im_len = XFS_FSB_TO_BB(mp, 1);
- imap->im_boffset = (ushort)(offset << mp->m_sb.sb_inodelog);
+ imap->im_boffset = (unsigned short)(offset <<
+ mp->m_sb.sb_inodelog);
return 0;
}
@@ -2372,7 +2373,7 @@ out_map:
imap->im_blkno = XFS_AGB_TO_DADDR(mp, agno, cluster_agbno);
imap->im_len = XFS_FSB_TO_BB(mp, blks_per_cluster);
- imap->im_boffset = (ushort)(offset << mp->m_sb.sb_inodelog);
+ imap->im_boffset = (unsigned short)(offset << mp->m_sb.sb_inodelog);
/*
* If the inode number maps to a block outside the bounds
@@ -2450,8 +2451,6 @@ xfs_ialloc_log_agi(
ASSERT(agi->agi_magicnum == cpu_to_be32(XFS_AGI_MAGIC));
#endif
- xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
-
/*
* Compute byte offsets for the first and last fields in the first
* region and log the agi buffer. This only logs up through
@@ -2512,8 +2511,15 @@ xfs_agi_verify(
if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum)))
return false;
- if (be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS)
+ if (be32_to_cpu(agi->agi_level) < 1 ||
+ be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS)
+ return false;
+
+ if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
+ (be32_to_cpu(agi->agi_free_level) < 1 ||
+ be32_to_cpu(agi->agi_free_level) > XFS_BTREE_MAXLEVELS))
return false;
+
/*
* during growfs operations, the perag is not fully initialised,
* so we can't use it for any useful checking. growfs ensures we can't
@@ -2592,6 +2598,8 @@ xfs_read_agi(
XFS_FSS_TO_BB(mp, 1), 0, bpp, &xfs_agi_buf_ops);
if (error)
return error;
+ if (tp)
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_AGI_BUF);
xfs_buf_set_ref(*bpp, XFS_AGI_REF);
return 0;