From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: linux-xfs@vger.kernel.org
Cc: Dave Chinner <david@fromorbit.com>
Subject: [PATCH v2 13/21] xfs: introduce scrubber cross-referencing stubs
Date: Tue, 9 Jan 2018 13:00:12 -0800 [thread overview]
Message-ID: <20180109210012.GH5602@magnolia> (raw)
In-Reply-To: <151398985228.18741.6364419677377927534.stgit@magnolia>
From: Darrick J. Wong <darrick.wong@oracle.com>
Create some stubs that will be used to cross-reference metadata records.
The actual cross-referencing will be filled in by subsequent patches.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
v2: move the OFLAG_CORRUPT checks into the helpers to clean up the call sites
---
| 63 ++++++++++++++++++++++++++++++++++++++++++++++-
fs/xfs/scrub/alloc.c | 13 ++++++++++
fs/xfs/scrub/bmap.c | 29 ++++++++++++++++++++++
fs/xfs/scrub/ialloc.c | 15 +++++++++++
fs/xfs/scrub/inode.c | 12 +++++++++
fs/xfs/scrub/refcount.c | 14 ++++++++++
fs/xfs/scrub/rmap.c | 12 +++++++++
7 files changed, 157 insertions(+), 1 deletion(-)
--git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
index 97beb47..1477aad 100644
--- a/fs/xfs/scrub/agheader.c
+++ b/fs/xfs/scrub/agheader.c
@@ -37,7 +37,10 @@
#include "scrub/common.h"
#include "scrub/trace.h"
-/* Walk all the blocks in the AGFL. */
+/*
+ * Walk all the blocks in the AGFL. The fn function can return any negative
+ * error code or XFS_BTREE_QUERY_RANGE_ABORT.
+ */
int
xfs_scrub_walk_agfl(
struct xfs_scrub_context *sc,
@@ -98,6 +101,16 @@ xfs_scrub_walk_agfl(
/* Superblock */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_superblock_xref(
+ struct xfs_scrub_context *sc,
+ struct xfs_buf *bp)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/*
* Scrub the filesystem superblock.
*
@@ -386,11 +399,22 @@ xfs_scrub_superblock(
BBTOB(bp->b_length) - sizeof(struct xfs_dsb)))
xfs_scrub_block_set_corrupt(sc, bp);
+ xfs_scrub_superblock_xref(sc, bp);
+
return error;
}
/* AGF */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_agf_xref(
+ struct xfs_scrub_context *sc)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub the AGF. */
int
xfs_scrub_agf(
@@ -469,6 +493,7 @@ xfs_scrub_agf(
if (agfl_count != 0 && fl_count != agfl_count)
xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+ xfs_scrub_agf_xref(sc);
out:
return error;
}
@@ -481,6 +506,16 @@ struct xfs_scrub_agfl_info {
xfs_agblock_t *entries;
};
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_agfl_block_xref(
+ struct xfs_scrub_context *sc,
+ xfs_agblock_t agbno)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub an AGFL block. */
STATIC int
xfs_scrub_agfl_block(
@@ -498,6 +533,8 @@ xfs_scrub_agfl_block(
else
xfs_scrub_block_set_corrupt(sc, sc->sa.agfl_bp);
+ xfs_scrub_agfl_block_xref(sc, agbno);
+
return 0;
}
@@ -512,6 +549,15 @@ xfs_scrub_agblock_cmp(
return (int)*a - (int)*b;
}
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_agfl_xref(
+ struct xfs_scrub_context *sc)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub the AGFL. */
int
xfs_scrub_agfl(
@@ -532,6 +578,11 @@ xfs_scrub_agfl(
if (!sc->sa.agf_bp)
return -EFSCORRUPTED;
+ xfs_scrub_agfl_xref(sc);
+
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ goto out;
+
/* Allocate buffer to ensure uniqueness of AGFL entries. */
agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
agflcount = be32_to_cpu(agf->agf_flcount);
@@ -574,6 +625,15 @@ xfs_scrub_agfl(
/* AGI */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_agi_xref(
+ struct xfs_scrub_context *sc)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub the AGI. */
int
xfs_scrub_agi(
@@ -652,6 +712,7 @@ xfs_scrub_agi(
if (agi->agi_pad32 != cpu_to_be32(0))
xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+ xfs_scrub_agi_xref(sc);
out:
return error;
}
diff --git a/fs/xfs/scrub/alloc.c b/fs/xfs/scrub/alloc.c
index 059663e..03ed403 100644
--- a/fs/xfs/scrub/alloc.c
+++ b/fs/xfs/scrub/alloc.c
@@ -50,6 +50,17 @@ xfs_scrub_setup_ag_allocbt(
/* Free space btree scrubber. */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_allocbt_xref(
+ struct xfs_scrub_context *sc,
+ xfs_agblock_t agbno,
+ xfs_extlen_t len)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub a bnobt/cntbt record. */
STATIC int
xfs_scrub_allocbt_rec(
@@ -70,6 +81,8 @@ xfs_scrub_allocbt_rec(
!xfs_verify_agbno(mp, agno, bno + len - 1))
xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+ xfs_scrub_allocbt_xref(bs->sc, bno, len);
+
return error;
}
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 0261e11..b693192 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -99,6 +99,30 @@ struct xfs_scrub_bmap_info {
int whichfork;
};
+/* Cross-reference a single rtdev extent record. */
+STATIC void
+xfs_scrub_bmap_rt_extent_xref(
+ struct xfs_scrub_bmap_info *info,
+ struct xfs_inode *ip,
+ struct xfs_btree_cur *cur,
+ struct xfs_bmbt_irec *irec)
+{
+ if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
+/* Cross-reference a single datadev extent record. */
+STATIC void
+xfs_scrub_bmap_extent_xref(
+ struct xfs_scrub_bmap_info *info,
+ struct xfs_inode *ip,
+ struct xfs_btree_cur *cur,
+ struct xfs_bmbt_irec *irec)
+{
+ if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub a single extent record. */
STATIC int
xfs_scrub_bmap_extent(
@@ -158,6 +182,11 @@ xfs_scrub_bmap_extent(
xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
irec->br_startoff);
+ if (info->is_rt)
+ xfs_scrub_bmap_rt_extent_xref(info, ip, cur, irec);
+ else
+ xfs_scrub_bmap_extent_xref(info, ip, cur, irec);
+
info->lastoff = irec->br_startoff + irec->br_blockcount;
return error;
}
diff --git a/fs/xfs/scrub/ialloc.c b/fs/xfs/scrub/ialloc.c
index 496d6f2..9294148 100644
--- a/fs/xfs/scrub/ialloc.c
+++ b/fs/xfs/scrub/ialloc.c
@@ -58,6 +58,19 @@ xfs_scrub_setup_ag_iallocbt(
/* Inode btree scrubber. */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_iallocbt_chunk_xref(
+ struct xfs_scrub_context *sc,
+ struct xfs_inobt_rec_incore *irec,
+ xfs_agino_t agino,
+ xfs_agblock_t agbno,
+ xfs_extlen_t len)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Is this chunk worth checking? */
STATIC bool
xfs_scrub_iallocbt_chunk(
@@ -76,6 +89,8 @@ xfs_scrub_iallocbt_chunk(
!xfs_verify_agbno(mp, agno, bno + len - 1))
xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+ xfs_scrub_iallocbt_chunk_xref(bs->sc, irec, agino, bno, len);
+
return true;
}
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index 304e8bc..2aa12e1 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -577,6 +577,17 @@ xfs_scrub_inode_map_raw(
return error;
}
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_inode_xref(
+ struct xfs_scrub_context *sc,
+ xfs_ino_t ino,
+ struct xfs_dinode *dip)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub an inode. */
int
xfs_scrub_inode(
@@ -626,6 +637,7 @@ xfs_scrub_inode(
xfs_scrub_ino_set_preen(sc, ino, bp);
}
+ xfs_scrub_inode_xref(sc, ino, dip);
out:
if (bp)
xfs_trans_brelse(sc->tp, bp);
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index 2f88a8d..d202382 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -50,6 +50,18 @@ xfs_scrub_setup_ag_refcountbt(
/* Reference count btree scrubber. */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_refcountbt_xref(
+ struct xfs_scrub_context *sc,
+ xfs_agblock_t bno,
+ xfs_extlen_t len,
+ xfs_nlink_t refcount)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub a refcountbt record. */
STATIC int
xfs_scrub_refcountbt_rec(
@@ -83,6 +95,8 @@ xfs_scrub_refcountbt_rec(
if (refcount == 0)
xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+ xfs_scrub_refcountbt_xref(bs->sc, bno, len, refcount);
+
return error;
}
diff --git a/fs/xfs/scrub/rmap.c b/fs/xfs/scrub/rmap.c
index 97846c4..8655948 100644
--- a/fs/xfs/scrub/rmap.c
+++ b/fs/xfs/scrub/rmap.c
@@ -51,6 +51,16 @@ xfs_scrub_setup_ag_rmapbt(
/* Reverse-mapping scrubber. */
+/* Cross-reference with the other btrees. */
+STATIC void
+xfs_scrub_rmapbt_xref(
+ struct xfs_scrub_context *sc,
+ struct xfs_rmap_irec *irec)
+{
+ if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return;
+}
+
/* Scrub an rmapbt record. */
STATIC int
xfs_scrub_rmapbt_rec(
@@ -121,6 +131,8 @@ xfs_scrub_rmapbt_rec(
irec.rm_owner > XFS_RMAP_OWN_FS)
xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
}
+
+ xfs_scrub_rmapbt_xref(bs->sc, &irec);
out:
return error;
}
next prev parent reply other threads:[~2018-01-09 21:00 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-23 0:42 [PATCH v11 00/21] xfs: online scrub xref support Darrick J. Wong
2017-12-23 0:42 ` [PATCH 01/21] xfs: ignore agfl read errors when not scrubbing agfl Darrick J. Wong
2018-01-05 1:12 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 02/21] xfs: catch a few more error codes when scrubbing secondary sb Darrick J. Wong
2018-01-05 1:17 ` Dave Chinner
2018-01-05 1:24 ` Darrick J. Wong
2018-01-05 2:10 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 03/21] xfs: xfs_scrub_bmap should use for_each_xfs_iext Darrick J. Wong
2018-01-05 1:17 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 04/21] xfs: always grab transaction when scrubbing inode Darrick J. Wong
2018-01-05 1:18 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 05/21] xfs: distinguish between corrupt inode and invalid inum in xfs_scrub_get_inode Darrick J. Wong
2018-01-05 1:23 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 06/21] xfs: add scrub cross-referencing helpers for the free space btrees Darrick J. Wong
2018-01-05 1:29 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 07/21] xfs: add scrub cross-referencing helpers for the inode btrees Darrick J. Wong
2018-01-05 1:36 ` Dave Chinner
2018-01-05 2:19 ` Darrick J. Wong
2018-01-05 21:51 ` [PATCH v2 " Darrick J. Wong
2018-01-16 23:05 ` Darrick J. Wong
2018-01-17 0:36 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 08/21] xfs: add scrub cross-referencing helpers for the rmap btrees Darrick J. Wong
2018-01-05 1:40 ` Dave Chinner
2018-01-05 2:49 ` Darrick J. Wong
2018-01-05 3:38 ` Dave Chinner
2018-01-05 21:53 ` [PATCH v2 " Darrick J. Wong
2018-01-06 20:46 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 09/21] xfs: add scrub cross-referencing helpers for the refcount btrees Darrick J. Wong
2018-01-05 1:41 ` Dave Chinner
2017-12-23 0:43 ` [PATCH 10/21] xfs: set up scrub cross-referencing helpers Darrick J. Wong
2018-01-05 2:08 ` Dave Chinner
2018-01-05 3:05 ` Darrick J. Wong
2018-01-05 21:54 ` [PATCH v2 " Darrick J. Wong
2018-01-16 23:06 ` Darrick J. Wong
2018-01-17 0:41 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 11/21] xfs: fix a few erroneous process_error calls in the scrubbers Darrick J. Wong
2018-01-05 2:11 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 12/21] xfs: check btree block ownership with bnobt/rmapbt when scrubbing btree Darrick J. Wong
2018-01-05 2:24 ` Dave Chinner
2018-01-05 2:53 ` Darrick J. Wong
2018-01-05 3:39 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 13/21] xfs: introduce scrubber cross-referencing stubs Darrick J. Wong
2018-01-08 23:36 ` Dave Chinner
2018-01-08 23:59 ` Darrick J. Wong
2018-01-09 21:00 ` Darrick J. Wong [this message]
2018-01-10 0:12 ` [PATCH v2 " Dave Chinner
2017-12-23 0:44 ` [PATCH 14/21] xfs: cross-reference with the bnobt Darrick J. Wong
2018-01-08 23:51 ` Dave Chinner
2018-01-09 0:34 ` Darrick J. Wong
2018-01-09 0:57 ` Dave Chinner
2018-01-09 21:15 ` [PATCH v2 " Darrick J. Wong
2018-01-10 0:15 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 15/21] xfs: cross-reference bnobt records with cntbt Darrick J. Wong
2018-01-08 23:55 ` Dave Chinner
2018-01-09 0:37 ` Darrick J. Wong
2018-01-09 21:20 ` [PATCH v2 " Darrick J. Wong
2018-01-10 0:19 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 16/21] xfs: cross-reference inode btrees during scrub Darrick J. Wong
2018-01-09 21:22 ` [PATCH v2 " Darrick J. Wong
2018-01-15 22:17 ` Dave Chinner
2018-01-16 6:30 ` Darrick J. Wong
2018-01-16 23:23 ` [PATCH v3 " Darrick J. Wong
2018-01-17 0:44 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 17/21] xfs: cross-reference reverse-mapping btree Darrick J. Wong
2018-01-09 21:24 ` [PATCH v2 " Darrick J. Wong
2018-01-15 23:04 ` Dave Chinner
2018-01-16 6:38 ` Darrick J. Wong
2018-01-16 23:25 ` [PATCH v3 " Darrick J. Wong
2018-01-17 0:52 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 18/21] xfs: cross-reference the rmapbt data with the refcountbt Darrick J. Wong
2018-01-09 21:25 ` [PATCH v2 " Darrick J. Wong
2018-01-15 23:49 ` Dave Chinner
2018-01-16 6:49 ` Darrick J. Wong
2018-01-16 19:47 ` Darrick J. Wong
2018-01-16 23:26 ` [PATCH v3 " Darrick J. Wong
2018-01-17 1:00 ` Dave Chinner
2018-01-17 1:11 ` Darrick J. Wong
2017-12-23 0:44 ` [PATCH 19/21] xfs: cross-reference refcount btree during scrub Darrick J. Wong
2018-01-09 21:25 ` [PATCH v2 " Darrick J. Wong
2018-01-16 2:44 ` Dave Chinner
2018-01-16 6:52 ` Darrick J. Wong
2018-01-16 20:26 ` Darrick J. Wong
2018-01-16 23:27 ` [PATCH v3 " Darrick J. Wong
2018-01-17 1:02 ` Dave Chinner
2017-12-23 0:44 ` [PATCH 20/21] xfs: cross-reference the realtime bitmap Darrick J. Wong
2018-01-09 21:26 ` [PATCH v2 " Darrick J. Wong
2018-01-16 2:57 ` Dave Chinner
2018-01-16 6:55 ` Darrick J. Wong
2018-01-16 23:27 ` [PATCH v3 " Darrick J. Wong
2018-01-17 1:03 ` Dave Chinner
2017-12-23 0:45 ` [PATCH 21/21] xfs: cross-reference the block mappings when possible Darrick J. Wong
2018-01-09 21:26 ` [PATCH v2 " Darrick J. Wong
2018-01-16 2:58 ` Dave Chinner
2018-01-16 6:55 ` Darrick J. Wong
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