[PATCH 1/3] xfs: expose xfs_bmap_local_to_extents for online repair

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Allow online repair to call xfs_bmap_local_to_extents and add a void *
argument at the end so that online repair can pass its own context.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_bmap.c           |   11 ++++++-----
 fs/xfs/libxfs/xfs_bmap.h           |    6 ++++++
 fs/xfs/libxfs/xfs_symlink_remote.c |    3 ++-
 fs/xfs/libxfs/xfs_symlink_remote.h |    3 ++-
 4 files changed, 16 insertions(+), 7 deletions(-)


diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 46bbc9f0a1173..59b8b9dc29ccf 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -779,7 +779,7 @@ xfs_bmap_local_to_extents_empty(
 }
 
 
-STATIC int				/* error */
+int					/* error */
 xfs_bmap_local_to_extents(
 	xfs_trans_t	*tp,		/* transaction pointer */
 	xfs_inode_t	*ip,		/* incore inode pointer */
@@ -789,7 +789,8 @@ xfs_bmap_local_to_extents(
 	void		(*init_fn)(struct xfs_trans *tp,
 				   struct xfs_buf *bp,
 				   struct xfs_inode *ip,
-				   struct xfs_ifork *ifp))
+				   struct xfs_ifork *ifp, void *priv),
+	void		*priv)
 {
 	int		error = 0;
 	int		flags;		/* logging flags returned */
@@ -850,7 +851,7 @@ xfs_bmap_local_to_extents(
 	 * log here. Note that init_fn must also set the buffer log item type
 	 * correctly.
 	 */
-	init_fn(tp, bp, ip, ifp);
+	init_fn(tp, bp, ip, ifp, priv);
 
 	/* account for the change in fork size */
 	xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);
@@ -982,8 +983,8 @@ xfs_bmap_add_attrfork_local(
 
 	if (S_ISLNK(VFS_I(ip)->i_mode))
 		return xfs_bmap_local_to_extents(tp, ip, 1, flags,
-						 XFS_DATA_FORK,
-						 xfs_symlink_local_to_remote);
+				XFS_DATA_FORK, xfs_symlink_local_to_remote,
+				NULL);
 
 	/* should only be called for types that support local format data */
 	ASSERT(0);
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index b8bdbf1560e65..32fb2a455c294 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -179,6 +179,12 @@ unsigned int xfs_bmap_compute_attr_offset(struct xfs_mount *mp);
 int	xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd);
 void	xfs_bmap_local_to_extents_empty(struct xfs_trans *tp,
 		struct xfs_inode *ip, int whichfork);
+int xfs_bmap_local_to_extents(struct xfs_trans *tp, struct xfs_inode *ip,
+		xfs_extlen_t total, int *logflagsp, int whichfork,
+		void (*init_fn)(struct xfs_trans *tp, struct xfs_buf *bp,
+				struct xfs_inode *ip, struct xfs_ifork *ifp,
+				void *priv),
+		void *priv);
 void	xfs_bmap_compute_maxlevels(struct xfs_mount *mp, int whichfork);
 int	xfs_bmap_first_unused(struct xfs_trans *tp, struct xfs_inode *ip,
 		xfs_extlen_t len, xfs_fileoff_t *unused, int whichfork);
diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c
index 8f0d5c584f46f..d150576ddd0af 100644
--- a/fs/xfs/libxfs/xfs_symlink_remote.c
+++ b/fs/xfs/libxfs/xfs_symlink_remote.c
@@ -169,7 +169,8 @@ xfs_symlink_local_to_remote(
 	struct xfs_trans	*tp,
 	struct xfs_buf		*bp,
 	struct xfs_inode	*ip,
-	struct xfs_ifork	*ifp)
+	struct xfs_ifork	*ifp,
+	void			*priv)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	char			*buf;
diff --git a/fs/xfs/libxfs/xfs_symlink_remote.h b/fs/xfs/libxfs/xfs_symlink_remote.h
index ac3dac8f617ed..83b89a1deb9f2 100644
--- a/fs/xfs/libxfs/xfs_symlink_remote.h
+++ b/fs/xfs/libxfs/xfs_symlink_remote.h
@@ -16,7 +16,8 @@ int xfs_symlink_hdr_set(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset,
 bool xfs_symlink_hdr_ok(xfs_ino_t ino, uint32_t offset,
 			uint32_t size, struct xfs_buf *bp);
 void xfs_symlink_local_to_remote(struct xfs_trans *tp, struct xfs_buf *bp,
-				 struct xfs_inode *ip, struct xfs_ifork *ifp);
+				 struct xfs_inode *ip, struct xfs_ifork *ifp,
+				 void *priv);
 xfs_failaddr_t xfs_symlink_shortform_verify(void *sfp, int64_t size);
 int xfs_symlink_remote_read(struct xfs_inode *ip, char *link);
 int xfs_symlink_write_target(struct xfs_trans *tp, struct xfs_inode *ip,





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