[PATCH 08/24] xfs: scrub the AGI
From: Darrick J. Wong <hidden>
Date: 2016-08-25 23:56:15
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add a forgotten check to the AGI verifier, then wire up the scrub infrastructure to check the AGI contents. Signed-off-by: Darrick J. Wong <redacted> --- libxfs/xfs_fs.h | 3 ++- libxfs/xfs_ialloc.c | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index dbdd346..daf8f5d 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h@@ -562,7 +562,8 @@ struct xfs_scrub_metadata { #define XFS_SCRUB_TYPE_SB 0 /* superblock */ #define XFS_SCRUB_TYPE_AGF 1 /* AG free header */ #define XFS_SCRUB_TYPE_AGFL 2 /* AG free list */ -#define XFS_SCRUB_TYPE_MAX 2 +#define XFS_SCRUB_TYPE_AGI 3 /* AG inode header */ +#define XFS_SCRUB_TYPE_MAX 3 #define XFS_SCRUB_FLAGS_ALL 0x0 /* no flags yet */
diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c
index 5c88b0b..c533d5c 100644
--- a/libxfs/xfs_ialloc.c
+++ b/libxfs/xfs_ialloc.c@@ -2508,6 +2508,11 @@ xfs_agi_verify( if (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) > 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
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