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authorDarrick J. Wong <darrick.wong@oracle.com>2018-01-16 18:53:10 -0800
committerDarrick J. Wong <darrick.wong@oracle.com>2018-01-17 21:00:46 -0800
commit46d9bfb5e706493777b9dfed666cd8967f69e6fd (patch)
tree217100fa935d9d54270292da98583ebe77a408dd /fs
parentf6d5fc21fdc7137848a469e344f78fcc8b5c10ab (diff)
downloadlinux-46d9bfb5e706493777b9dfed666cd8967f69e6fd.tar.bz2
xfs: cross-reference the realtime bitmap
While we're scrubbing various btrees, cross-reference the records with the other metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/libxfs/xfs_rtbitmap.c21
-rw-r--r--fs/xfs/scrub/bmap.c3
-rw-r--r--fs/xfs/scrub/rtbitmap.c23
-rw-r--r--fs/xfs/scrub/scrub.h6
-rw-r--r--fs/xfs/xfs_rtalloc.h4
5 files changed, 57 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index 3fb29a5ea915..106be2d0bb88 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -1097,3 +1097,24 @@ xfs_verify_rtbno(
{
return rtbno < mp->m_sb.sb_rblocks;
}
+
+/* Is the given extent all free? */
+int
+xfs_rtalloc_extent_is_free(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ xfs_rtblock_t start,
+ xfs_extlen_t len,
+ bool *is_free)
+{
+ xfs_rtblock_t end;
+ int matches;
+ int error;
+
+ error = xfs_rtcheck_range(mp, tp, start, len, 1, &end, &matches);
+ if (error)
+ return error;
+
+ *is_free = matches;
+ return 0;
+}
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 7b2cf8fd1ce0..2bb3e0c4b4ef 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -243,6 +243,9 @@ xfs_scrub_bmap_rt_extent_xref(
{
if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
return;
+
+ xfs_scrub_xref_is_used_rt_space(info->sc, irec->br_startblock,
+ irec->br_blockcount);
}
/* Cross-reference a single datadev extent record. */
diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
index 6860d5d92515..26390991369a 100644
--- a/fs/xfs/scrub/rtbitmap.c
+++ b/fs/xfs/scrub/rtbitmap.c
@@ -98,3 +98,26 @@ xfs_scrub_rtsummary(
/* XXX: implement this some day */
return -ENOENT;
}
+
+
+/* xref check that the extent is not free in the rtbitmap */
+void
+xfs_scrub_xref_is_used_rt_space(
+ struct xfs_scrub_context *sc,
+ xfs_rtblock_t fsbno,
+ xfs_extlen_t len)
+{
+ bool is_free;
+ int error;
+
+ xfs_ilock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
+ error = xfs_rtalloc_extent_is_free(sc->mp, sc->tp, fsbno, len,
+ &is_free);
+ if (!xfs_scrub_should_check_xref(sc, &error, NULL))
+ goto out_unlock;
+ if (is_free)
+ xfs_scrub_ino_xref_set_corrupt(sc, sc->mp->m_rbmip->i_ino,
+ NULL);
+out_unlock:
+ xfs_iunlock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
+}
diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h
index c8f8b42cbdb3..0d92af86f67a 100644
--- a/fs/xfs/scrub/scrub.h
+++ b/fs/xfs/scrub/scrub.h
@@ -142,5 +142,11 @@ void xfs_scrub_xref_is_cow_staging(struct xfs_scrub_context *sc,
xfs_agblock_t bno, xfs_extlen_t len);
void xfs_scrub_xref_is_not_shared(struct xfs_scrub_context *sc,
xfs_agblock_t bno, xfs_extlen_t len);
+#ifdef CONFIG_XFS_RT
+void xfs_scrub_xref_is_used_rt_space(struct xfs_scrub_context *sc,
+ xfs_rtblock_t rtbno, xfs_extlen_t len);
+#else
+# define xfs_scrub_xref_is_used_rt_space(sc, rtbno, len) do { } while (0)
+#endif
#endif /* __XFS_SCRUB_SCRUB_H__ */
diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h
index 3f30f846d7f2..dfee3c991155 100644
--- a/fs/xfs/xfs_rtalloc.h
+++ b/fs/xfs/xfs_rtalloc.h
@@ -139,6 +139,9 @@ int xfs_rtalloc_query_all(struct xfs_trans *tp,
xfs_rtalloc_query_range_fn fn,
void *priv);
bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
+int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
+ xfs_rtblock_t start, xfs_extlen_t len,
+ bool *is_free);
#else
# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (ENOSYS)
# define xfs_rtfree_extent(t,b,l) (ENOSYS)
@@ -148,6 +151,7 @@ bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
# define xfs_rtalloc_query_all(t,f,p) (ENOSYS)
# define xfs_rtbuf_get(m,t,b,i,p) (ENOSYS)
# define xfs_verify_rtbno(m, r) (false)
+# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (ENOSYS)
static inline int /* error */
xfs_rtmount_init(
xfs_mount_t *mp) /* file system mount structure */