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authorDarrick J. Wong <darrick.wong@oracle.com>2018-05-14 06:34:31 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2018-05-15 17:57:05 -0700
commit8389f3ffa22a119b37dc7c2217cd2862bb2ed9da (patch)
treecb736467d60f15c66f599ec5478a8dce52c1d421 /fs/xfs
parentc9fbd7bbc23dbdd73364be4d045e5d3612cf6e82 (diff)
downloadlinux-8389f3ffa22a119b37dc7c2217cd2862bb2ed9da.tar.bz2
xfs: skip scrub xref if corruption already noted
Don't bother looking for cross-referencing problems if the metadata is already corrupt or we've already found a cross-referencing problem. Since we added a helper function for flags testing, convert existing users to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/scrub/alloc.c4
-rw-r--r--fs/xfs/scrub/bmap.c2
-rw-r--r--fs/xfs/scrub/common.c4
-rw-r--r--fs/xfs/scrub/common.h10
-rw-r--r--fs/xfs/scrub/ialloc.c7
-rw-r--r--fs/xfs/scrub/inode.c5
-rw-r--r--fs/xfs/scrub/refcount.c8
-rw-r--r--fs/xfs/scrub/rmap.c6
-rw-r--r--fs/xfs/scrub/rtbitmap.c3
-rw-r--r--fs/xfs/scrub/scrub.c4
10 files changed, 37 insertions, 16 deletions
diff --git a/fs/xfs/scrub/alloc.c b/fs/xfs/scrub/alloc.c
index 517c079d3f68..941a0a55224e 100644
--- a/fs/xfs/scrub/alloc.c
+++ b/fs/xfs/scrub/alloc.c
@@ -70,7 +70,7 @@ xfs_scrub_allocbt_xref_other(
pcur = &sc->sa.cnt_cur;
else
pcur = &sc->sa.bno_cur;
- if (!*pcur)
+ if (!*pcur || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_alloc_lookup_le(*pcur, agbno, len, &has_otherrec);
@@ -172,7 +172,7 @@ xfs_scrub_xref_is_used_space(
bool is_freesp;
int error;
- if (!sc->sa.bno_cur)
+ if (!sc->sa.bno_cur || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_alloc_has_record(sc->sa.bno_cur, agbno, len, &is_freesp);
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 3f8fd10160f0..e5a4611abf86 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -174,7 +174,7 @@ xfs_scrub_bmap_xref_rmap(
unsigned long long rmap_end;
uint64_t owner;
- if (!info->sc->sa.rmap_cur)
+ if (!info->sc->sa.rmap_cur || xfs_scrub_skip_xref(info->sc->sm))
return;
if (info->whichfork == XFS_COW_FORK)
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 95625aa90c24..2ac8576c4670 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -737,6 +737,10 @@ xfs_scrub_should_check_xref(
int *error,
struct xfs_btree_cur **curpp)
{
+ /* No point in xref if we already know we're corrupt. */
+ if (xfs_scrub_skip_xref(sc->sm))
+ return false;
+
if (*error == 0)
return true;
diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h
index c95c30c986b7..a23ad7fa2b6c 100644
--- a/fs/xfs/scrub/common.h
+++ b/fs/xfs/scrub/common.h
@@ -145,4 +145,14 @@ int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc,
struct xfs_inode *ip, unsigned int resblks);
void xfs_scrub_buffer_recheck(struct xfs_scrub_context *sc, struct xfs_buf *bp);
+/*
+ * Don't bother cross-referencing if we already found corruption or cross
+ * referencing discrepancies.
+ */
+static inline bool xfs_scrub_skip_xref(struct xfs_scrub_metadata *sm)
+{
+ return sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
+ XFS_SCRUB_OFLAG_XCORRUPT);
+}
+
#endif /* __XFS_SCRUB_COMMON_H__ */
diff --git a/fs/xfs/scrub/ialloc.c b/fs/xfs/scrub/ialloc.c
index 106ca4bd753f..00a834d3b56d 100644
--- a/fs/xfs/scrub/ialloc.c
+++ b/fs/xfs/scrub/ialloc.c
@@ -387,7 +387,8 @@ xfs_scrub_iallocbt_xref_rmap_btreeblks(
int error;
if (!sc->sa.ino_cur || !sc->sa.rmap_cur ||
- (xfs_sb_version_hasfinobt(&sc->mp->m_sb) && !sc->sa.fino_cur))
+ (xfs_sb_version_hasfinobt(&sc->mp->m_sb) && !sc->sa.fino_cur) ||
+ xfs_scrub_skip_xref(sc->sm))
return;
/* Check that we saw as many inobt blocks as the rmap says. */
@@ -424,7 +425,7 @@ xfs_scrub_iallocbt_xref_rmap_inodes(
xfs_filblks_t blocks;
int error;
- if (!sc->sa.rmap_cur)
+ if (!sc->sa.rmap_cur || xfs_scrub_skip_xref(sc->sm))
return;
/* Check that we saw as many inode blocks as the rmap knows about. */
@@ -496,7 +497,7 @@ xfs_scrub_xref_inode_check(
bool has_inodes;
int error;
- if (!(*icur))
+ if (!(*icur) || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_ialloc_has_inodes_at_extent(*icur, agbno, len, &has_inodes);
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index e15b1bc5053f..550c0cf70a92 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -448,7 +448,7 @@ xfs_scrub_inode_xref_finobt(
int has_record;
int error;
- if (!sc->sa.fino_cur)
+ if (!sc->sa.fino_cur || xfs_scrub_skip_xref(sc->sm))
return;
agino = XFS_INO_TO_AGINO(sc->mp, ino);
@@ -491,6 +491,9 @@ xfs_scrub_inode_xref_bmap(
xfs_filblks_t acount;
int error;
+ if (xfs_scrub_skip_xref(sc->sm))
+ return;
+
/* Walk all the extents to check nextents/naextents/nblocks. */
error = xfs_bmap_count_blocks(sc->tp, sc->ip, XFS_DATA_FORK,
&nextents, &count);
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index d86526d2932c..324a5f159145 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -310,7 +310,7 @@ xfs_scrub_refcountbt_xref_rmap(
struct xfs_scrub_refcnt_frag *n;
int error;
- if (!sc->sa.rmap_cur)
+ if (!sc->sa.rmap_cur || xfs_scrub_skip_xref(sc->sm))
return;
/* Cross-reference with the rmapbt to confirm the refcount. */
@@ -404,7 +404,7 @@ xfs_scrub_refcount_xref_rmap(
xfs_filblks_t blocks;
int error;
- if (!sc->sa.rmap_cur)
+ if (!sc->sa.rmap_cur || xfs_scrub_skip_xref(sc->sm))
return;
/* Check that we saw as many refcbt blocks as the rmap knows about. */
@@ -460,7 +460,7 @@ xfs_scrub_xref_is_cow_staging(
int has_refcount;
int error;
- if (!sc->sa.refc_cur)
+ if (!sc->sa.refc_cur || xfs_scrub_skip_xref(sc->sm))
return;
/* Find the CoW staging extent. */
@@ -504,7 +504,7 @@ xfs_scrub_xref_is_not_shared(
bool shared;
int error;
- if (!sc->sa.refc_cur)
+ if (!sc->sa.refc_cur || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_refcount_has_record(sc->sa.refc_cur, agbno, len, &shared);
diff --git a/fs/xfs/scrub/rmap.c b/fs/xfs/scrub/rmap.c
index 8f2a7c3ff455..b376a9a77c04 100644
--- a/fs/xfs/scrub/rmap.c
+++ b/fs/xfs/scrub/rmap.c
@@ -66,7 +66,7 @@ xfs_scrub_rmapbt_xref_refc(
bool is_unwritten;
int error;
- if (!sc->sa.refc_cur)
+ if (!sc->sa.refc_cur || xfs_scrub_skip_xref(sc->sm))
return;
non_inode = XFS_RMAP_NON_INODE_OWNER(irec->rm_owner);
@@ -207,7 +207,7 @@ xfs_scrub_xref_check_owner(
bool has_rmap;
int error;
- if (!sc->sa.rmap_cur)
+ if (!sc->sa.rmap_cur || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_rmap_record_exists(sc->sa.rmap_cur, bno, len, oinfo,
@@ -250,7 +250,7 @@ xfs_scrub_xref_has_no_owner(
bool has_rmap;
int error;
- if (!sc->sa.rmap_cur)
+ if (!sc->sa.rmap_cur || xfs_scrub_skip_xref(sc->sm))
return;
error = xfs_rmap_has_record(sc->sa.rmap_cur, bno, len, &has_rmap);
diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
index 39c41dfe08ee..8b048f107af2 100644
--- a/fs/xfs/scrub/rtbitmap.c
+++ b/fs/xfs/scrub/rtbitmap.c
@@ -110,6 +110,9 @@ xfs_scrub_xref_is_used_rt_space(
bool is_free;
int error;
+ if (xfs_scrub_skip_xref(sc->sm))
+ return;
+
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);
diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c
index 67509d8b8b8e..ad6eda4fa123 100644
--- a/fs/xfs/scrub/scrub.c
+++ b/fs/xfs/scrub/scrub.c
@@ -450,8 +450,8 @@ retry_op:
} else if (error)
goto out_teardown;
- if (sc.sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
- XFS_SCRUB_OFLAG_XCORRUPT))
+ if (sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
+ XFS_SCRUB_OFLAG_XCORRUPT))
xfs_alert_ratelimited(mp, "Corruption detected during scrub.");
out_teardown: