[PATCH 08/18] libxfs: make libxfs_readbuf_verify return an error code

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From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Return the bp->b_error from libxfs_readbuf_verify instead of making
callers check it.

Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 libxfs/libxfs_io.h |    3 +--
 libxfs/rdwr.c      |   10 +++++++---
 repair/prefetch.c  |    5 +++--
 3 files changed, 11 insertions(+), 7 deletions(-)


diff --git a/libxfs/libxfs_io.h b/libxfs/libxfs_io.h
index f00ff8d3..b01f2896 100644
--- a/libxfs/libxfs_io.h
+++ b/libxfs/libxfs_io.h
@@ -208,8 +208,7 @@ libxfs_buf_read(
 
 #endif /* XFS_BUF_TRACING */
 
-extern void	libxfs_readbuf_verify(struct xfs_buf *bp,
-			const struct xfs_buf_ops *ops);
+int libxfs_readbuf_verify(struct xfs_buf *bp, const struct xfs_buf_ops *ops);
 struct xfs_buf *libxfs_getsb(struct xfs_mount *);
 extern void	libxfs_bcache_purge(void);
 extern void	libxfs_bcache_free(void);
diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c
index 2a4ef15a..24c5eaf6 100644
--- a/libxfs/rdwr.c
+++ b/libxfs/rdwr.c
@@ -943,14 +943,18 @@ libxfs_readbufr(struct xfs_buftarg *btp, xfs_daddr_t blkno, xfs_buf_t *bp,
 	return error;
 }
 
-void
-libxfs_readbuf_verify(struct xfs_buf *bp, const struct xfs_buf_ops *ops)
+int
+libxfs_readbuf_verify(
+	struct xfs_buf		*bp,
+	const struct xfs_buf_ops *ops)
 {
 	if (!ops)
-		return;
+		return bp->b_error;
+
 	bp->b_ops = ops;
 	bp->b_ops->verify_read(bp);
 	bp->b_flags &= ~LIBXFS_B_UNCHECKED;
+	return bp->b_error;
 }
 
 static struct xfs_buf *
diff --git a/repair/prefetch.c b/repair/prefetch.c
index 12272932..a3858f9a 100644
--- a/repair/prefetch.c
+++ b/repair/prefetch.c
@@ -400,9 +400,10 @@ pf_read_inode_dirs(
 	int			icnt = 0;
 	int			hasdir = 0;
 	int			isadir;
+	int			error;
 
-	libxfs_readbuf_verify(bp, &xfs_inode_buf_ops);
-	if (bp->b_error)
+	error = -libxfs_readbuf_verify(bp, &xfs_inode_buf_ops);
+	if (error)
 		return;
 
 	for (icnt = 0; icnt < (bp->b_bcount >> mp->m_sb.sb_inodelog); icnt++) {




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