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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org, hch@infradead.org
Subject: [PATCH 9/9] xfs: make xfs_btree_get_buf functions return an error code
Date: Wed, 15 Jan 2020 09:04:38 -0800
Message-ID: <157910787821.2028217.9307411154179566922.stgit@magnolia> (raw)
In-Reply-To: <157910781961.2028217.1250106765923436515.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Convert both xfs_btree_get_buf() functions to return numeric error codes
like most everywhere else in xfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/libxfs/xfs_alloc.c |   13 ++++++-------
 fs/xfs/libxfs/xfs_bmap.c  |   10 +++++-----
 fs/xfs/libxfs/xfs_btree.c |   36 ++++++++++++++----------------------
 fs/xfs/libxfs/xfs_btree.h |   16 +++++-----------
 4 files changed, 30 insertions(+), 45 deletions(-)


diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 53410819691b..542f6ad7e5b4 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -1070,11 +1070,10 @@ xfs_alloc_ag_vextent_small(
 	if (args->datatype & XFS_ALLOC_USERDATA) {
 		struct xfs_buf	*bp;
 
-		bp = xfs_btree_get_bufs(args->mp, args->tp, args->agno, fbno);
-		if (XFS_IS_CORRUPT(args->mp, !bp)) {
-			error = -EFSCORRUPTED;
+		error = xfs_btree_get_bufs(args->mp, args->tp, args->agno,
+				fbno, &bp);
+		if (error)
 			goto error;
-		}
 		xfs_trans_binval(args->tp, bp);
 	}
 	*fbnop = args->agbno = fbno;
@@ -2347,9 +2346,9 @@ xfs_free_agfl_block(
 	if (error)
 		return error;
 
-	bp = xfs_btree_get_bufs(tp->t_mountp, tp, agno, agbno);
-	if (XFS_IS_CORRUPT(tp->t_mountp, !bp))
-		return -EFSCORRUPTED;
+	error = xfs_btree_get_bufs(tp->t_mountp, tp, agno, agbno, &bp);
+	if (error)
+		return error;
 	xfs_trans_binval(tp, bp);
 
 	return 0;
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 4c2e046fbfad..4544732d09a5 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -730,11 +730,9 @@ xfs_bmap_extents_to_btree(
 	cur->bc_private.b.allocated++;
 	ip->i_d.di_nblocks++;
 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, 1L);
-	abp = xfs_btree_get_bufl(mp, tp, args.fsbno);
-	if (XFS_IS_CORRUPT(mp, !abp)) {
-		error = -EFSCORRUPTED;
+	error = xfs_btree_get_bufl(mp, tp, args.fsbno, &abp);
+	if (error)
 		goto out_unreserve_dquot;
-	}
 
 	/*
 	 * Fill in the child block.
@@ -878,7 +876,9 @@ xfs_bmap_local_to_extents(
 	ASSERT(args.fsbno != NULLFSBLOCK);
 	ASSERT(args.len == 1);
 	tp->t_firstblock = args.fsbno;
-	bp = xfs_btree_get_bufl(args.mp, tp, args.fsbno);
+	error = xfs_btree_get_bufl(args.mp, tp, args.fsbno, &bp);
+	if (error)
+		goto done;
 
 	/*
 	 * Initialize the block, copy the data and log the remote buffer.
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 2d53e5fdff70..0a7e2265dec1 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -682,46 +682,38 @@ xfs_btree_get_block(
  * Get a buffer for the block, return it with no data read.
  * Long-form addressing.
  */
-xfs_buf_t *				/* buffer for fsbno */
+int
 xfs_btree_get_bufl(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_fsblock_t	fsbno)		/* file system block number */
+	struct xfs_mount	*mp,
+	struct xfs_trans	*tp,
+	xfs_fsblock_t		fsbno,
+	struct xfs_buf		**bpp)
 {
-	struct xfs_buf		*bp;
 	xfs_daddr_t		d;		/* real disk block address */
-	int			error;
 
 	ASSERT(fsbno != NULLFSBLOCK);
 	d = XFS_FSB_TO_DADDR(mp, fsbno);
-	error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
-	if (error)
-		return NULL;
-	return bp;
+	return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, bpp);
 }
 
 /*
  * Get a buffer for the block, return it with no data read.
  * Short-form addressing.
  */
-xfs_buf_t *				/* buffer for agno/agbno */
+int
 xfs_btree_get_bufs(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_agnumber_t	agno,		/* allocation group number */
-	xfs_agblock_t	agbno)		/* allocation group block number */
+	struct xfs_mount	*mp,
+	struct xfs_trans	*tp,
+	xfs_agnumber_t		agno,
+	xfs_agblock_t		agbno,
+	struct xfs_buf		**bpp)
 {
-	struct xfs_buf		*bp;
-	xfs_daddr_t		d;		/* real disk block address */
-	int			error;
+	xfs_daddr_t		d;
 
 	ASSERT(agno != NULLAGNUMBER);
 	ASSERT(agbno != NULLAGBLOCK);
 	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
-	error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
-	if (error)
-		return NULL;
-	return bp;
+	return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, bpp);
 }
 
 /*
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index fb9b2121c628..97c2b5e75210 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -300,22 +300,16 @@ xfs_btree_dup_cursor(
  * Get a buffer for the block, return it with no data read.
  * Long-form addressing.
  */
-struct xfs_buf *				/* buffer for fsbno */
-xfs_btree_get_bufl(
-	struct xfs_mount	*mp,	/* file system mount point */
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_fsblock_t		fsbno);	/* file system block number */
+int xfs_btree_get_bufl(struct xfs_mount *mp, struct xfs_trans *tp,
+		xfs_fsblock_t fsbno, struct xfs_buf **bpp);
 
 /*
  * Get a buffer for the block, return it with no data read.
  * Short-form addressing.
  */
-struct xfs_buf *				/* buffer for agno/agbno */
-xfs_btree_get_bufs(
-	struct xfs_mount	*mp,	/* file system mount point */
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_agnumber_t		agno,	/* allocation group number */
-	xfs_agblock_t		agbno);	/* allocation group block number */
+int xfs_btree_get_bufs(struct xfs_mount *mp, struct xfs_trans *tp,
+		xfs_agnumber_t agno, xfs_agblock_t agbno,
+		struct xfs_buf **bpp);
 
 /*
  * Compute first and last byte offsets for the fields given.


  parent reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-15 17:03 [PATCH 0/9] xfs: make buffer functions return error codes Darrick J. Wong
2020-01-15 17:03 ` [PATCH 1/9] xfs: make xfs_buf_alloc return an error code Darrick J. Wong
2020-01-16 16:13   ` Christoph Hellwig
2020-01-15 17:03 ` [PATCH 2/9] xfs: make xfs_buf_read " Darrick J. Wong
2020-01-16 16:15   ` Christoph Hellwig
2020-01-16 22:30     ` Darrick J. Wong
2020-01-15 17:03 ` [PATCH 3/9] xfs: make xfs_buf_get " Darrick J. Wong
2020-01-16 16:16   ` Christoph Hellwig
2020-01-16 22:30     ` Darrick J. Wong
2020-01-15 17:04 ` [PATCH 4/9] xfs: make xfs_buf_get_uncached " Darrick J. Wong
2020-01-16 16:17   ` Christoph Hellwig
2020-01-15 17:04 ` [PATCH 5/9] xfs: make xfs_buf_read_map " Darrick J. Wong
2020-01-16 16:21   ` Christoph Hellwig
2020-01-16 23:26     ` Darrick J. Wong
2020-01-15 17:04 ` [PATCH 6/9] xfs: make xfs_buf_get_map " Darrick J. Wong
2020-01-16 16:28   ` Christoph Hellwig
2020-01-16 22:33     ` Darrick J. Wong
2020-01-15 17:04 ` [PATCH 7/9] xfs: make xfs_trans_get_buf_map " Darrick J. Wong
2020-01-16 16:29   ` Christoph Hellwig
2020-01-15 17:04 ` [PATCH 8/9] xfs: make xfs_trans_get_buf " Darrick J. Wong
2020-01-16 16:31   ` Christoph Hellwig
2020-01-15 17:04 ` Darrick J. Wong [this message]
2020-01-16 16:33   ` [PATCH 9/9] xfs: make xfs_btree_get_buf functions " Christoph Hellwig
2020-01-16 16:43     ` Christoph Hellwig
2020-01-16 22:40     ` Darrick J. Wong

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