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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: david@fromorbit.com, darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH 34/39] xfs: repair inode block maps
Date: Fri, 04 Nov 2016 17:28:13 -0700	[thread overview]
Message-ID: <147830569369.4165.912811160069227760.stgit@birch.djwong.org> (raw)
In-Reply-To: <147830546754.4165.17790362300876898017.stgit@birch.djwong.org>

Use the reverse-mapping btree information to rebuild an inode fork.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 libxfs/xfs_bmap.c |   20 ++++++++++++--------
 libxfs/xfs_bmap.h |    6 +++++-
 2 files changed, 17 insertions(+), 9 deletions(-)


diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 0e2f450..53d6848 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -2216,9 +2216,12 @@ xfs_bmap_add_extent_delay_real(
 	}
 
 	/* add reverse mapping */
-	error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip, whichfork, new);
-	if (error)
-		goto done;
+	if (!(bma->flags & XFS_BMAPI_NORMAP)) {
+		error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip,
+				whichfork, new);
+		if (error)
+			goto done;
+	}
 
 	/* convert to a btree if necessary */
 	if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
@@ -3159,9 +3162,12 @@ xfs_bmap_add_extent_hole_real(
 	}
 
 	/* add reverse mapping */
-	error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip, whichfork, new);
-	if (error)
-		goto done;
+	if (!(bma->flags & XFS_BMAPI_NORMAP)) {
+		error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip,
+				whichfork, new);
+		if (error)
+			goto done;
+	}
 
 	/* convert to a btree if necessary */
 	if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
@@ -4585,8 +4591,6 @@ xfs_bmapi_write(
 	ASSERT(len > 0);
 	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-	ASSERT(!(flags & XFS_BMAPI_REMAP) || whichfork == XFS_DATA_FORK);
-	ASSERT(!(flags & XFS_BMAPI_PREALLOC) || !(flags & XFS_BMAPI_REMAP));
 	ASSERT(!(flags & XFS_BMAPI_CONVERT) || !(flags & XFS_BMAPI_REMAP));
 	ASSERT(!(flags & XFS_BMAPI_PREALLOC) || whichfork != XFS_COW_FORK);
 	ASSERT(!(flags & XFS_BMAPI_CONVERT) || whichfork != XFS_COW_FORK);
diff --git a/libxfs/xfs_bmap.h b/libxfs/xfs_bmap.h
index 7cae6ec..9d4754f 100644
--- a/libxfs/xfs_bmap.h
+++ b/libxfs/xfs_bmap.h
@@ -110,6 +110,9 @@ struct xfs_extent_free_item
 /* Map something in the CoW fork. */
 #define XFS_BMAPI_COWFORK	0x200
 
+/* Don't update the rmap btree. */
+#define XFS_BMAPI_NORMAP	0x400
+
 #define XFS_BMAPI_FLAGS \
 	{ XFS_BMAPI_ENTIRE,	"ENTIRE" }, \
 	{ XFS_BMAPI_METADATA,	"METADATA" }, \
@@ -120,7 +123,8 @@ struct xfs_extent_free_item
 	{ XFS_BMAPI_CONVERT,	"CONVERT" }, \
 	{ XFS_BMAPI_ZERO,	"ZERO" }, \
 	{ XFS_BMAPI_REMAP,	"REMAP" }, \
-	{ XFS_BMAPI_COWFORK,	"COWFORK" }
+	{ XFS_BMAPI_COWFORK,	"COWFORK" }, \
+	{ XFS_BMAPI_NORMAP,	"NORMAP" }
 
 
 static inline int xfs_bmapi_aflag(int w)


  parent reply	other threads:[~2016-11-05  0:28 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-05  0:24 [PATCH v2 00/39] xfsprogs: online scrub/repair support Darrick J. Wong
2016-11-05  0:24 ` [PATCH 01/39] xfs: plumb in needed functions for range querying of the freespace btrees Darrick J. Wong
2016-11-05  0:24 ` [PATCH 02/39] xfs: provide a query_range function for " Darrick J. Wong
2016-11-05  0:24 ` [PATCH 03/39] xfs: create a function to query all records in a btree Darrick J. Wong
2016-11-05  0:24 ` [PATCH 04/39] xfs: introduce the XFS_IOC_GETFSMAP ioctl Darrick J. Wong
2016-11-05  0:25 ` [PATCH 05/39] xfs_io: support the new getfsmap ioctl Darrick J. Wong
2016-11-05  0:25 ` [PATCH 06/39] xfs: use GPF_NOFS when allocating btree cursors Darrick J. Wong
2016-11-05  0:25 ` [PATCH 07/39] xfs: add scrub tracepoints Darrick J. Wong
2016-11-05  0:25 ` [PATCH 08/39] xfs: create an ioctl to scrub AG metadata Darrick J. Wong
2016-11-05  0:25 ` [PATCH 09/39] xfs: generic functions to scrub metadata and btrees Darrick J. Wong
2016-11-05  0:25 ` [PATCH 10/39] xfs: scrub the backup superblocks Darrick J. Wong
2016-11-05  0:25 ` [PATCH 11/39] xfs: scrub AGF and AGFL Darrick J. Wong
2016-11-05  0:25 ` [PATCH 12/39] xfs: scrub the AGI Darrick J. Wong
2016-11-05  0:25 ` [PATCH 13/39] xfs: support scrubbing free space btrees Darrick J. Wong
2016-11-05  0:26 ` [PATCH 14/39] xfs: support scrubbing inode btrees Darrick J. Wong
2016-11-05  0:26 ` [PATCH 15/39] xfs: support scrubbing rmap btree Darrick J. Wong
2016-11-05  0:26 ` [PATCH 16/39] xfs: support scrubbing refcount btree Darrick J. Wong
2016-11-05  0:26 ` [PATCH 17/39] xfs: scrub inodes Darrick J. Wong
2016-11-05  0:26 ` [PATCH 18/39] xfs: scrub inode block mappings Darrick J. Wong
2016-11-05  0:26 ` [PATCH 19/39] xfs: scrub directory/attribute btrees Darrick J. Wong
2016-11-05  0:26 ` [PATCH 20/39] xfs: scrub directories Darrick J. Wong
2016-11-05  0:26 ` [PATCH 21/39] xfs: scrub extended attributes Darrick J. Wong
2016-11-05  0:26 ` [PATCH 22/39] xfs: scrub symbolic links Darrick J. Wong
2016-11-05  0:27 ` [PATCH 23/39] xfs: scrub realtime bitmap/summary Darrick J. Wong
2016-11-05  0:27 ` [PATCH 24/39] xfs: scrub should cross-reference with the bnobt Darrick J. Wong
2016-11-05  0:27 ` [PATCH 25/39] xfs: cross-reference bnobt records with cntbt Darrick J. Wong
2016-11-05  0:27 ` [PATCH 26/39] xfs: cross-reference inode btrees during scrub Darrick J. Wong
2016-11-05  0:27 ` [PATCH 27/39] xfs: cross-reference reverse-mapping btree Darrick J. Wong
2016-11-05  0:27 ` [PATCH 28/39] xfs: cross-reference refcount btree during scrub Darrick J. Wong
2016-11-05  0:27 ` [PATCH 29/39] xfs: scrub should cross-reference the realtime bitmap Darrick J. Wong
2016-11-05  0:27 ` [PATCH 30/39] xfs: add helper routines for the repair code Darrick J. Wong
2016-11-05  0:27 ` [PATCH 31/39] xfs: repair inode btrees Darrick J. Wong
2016-11-05  0:27 ` [PATCH 32/39] xfs: rebuild the rmapbt Darrick J. Wong
2016-11-05  0:28 ` [PATCH 33/39] xfs: repair refcount btrees Darrick J. Wong
2016-11-05  0:28 ` Darrick J. Wong [this message]
2016-11-05  0:28 ` [PATCH 35/39] xfs: query the per-AG reservation counters Darrick J. Wong
2016-11-05  0:28 ` [PATCH 36/39] xfs_db: introduce fuzz command Darrick J. Wong
2016-11-05  0:28 ` [PATCH 37/39] xfs_db: print attribute remote value blocks Darrick J. Wong
2016-11-05  0:28 ` [PATCH 38/39] xfs_io: provide an interface to the scrub ioctls Darrick J. Wong
2016-11-05  0:28 ` [PATCH 39/39] xfs_scrub: create online filesystem scrub program Darrick J. Wong
2016-11-05  5:22   ` Eryu Guan
2016-11-08  8:37     ` Darrick J. Wong

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