xfs: split out the remote symlink handling
The remote symlink format definition and manipulation needs to be
shared with userspace, but the in-kernel interfaces do not. Split
the remote symlink format handling out into xfs_symlink_remote.[ch]
fo it can easily be shared with userspace.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
diff --git a/fs/xfs/xfs_symlink.h b/fs/xfs/xfs_symlink.h
index c8e3a02..99338ba 100644
--- a/fs/xfs/xfs_symlink.h
+++ b/fs/xfs/xfs_symlink.h
@@ -17,51 +17,11 @@
#ifndef __XFS_SYMLINK_H
#define __XFS_SYMLINK_H 1
-struct xfs_mount;
-struct xfs_trans;
-struct xfs_inode;
-struct xfs_buf;
-struct xfs_ifork;
-struct xfs_name;
-
-#define XFS_SYMLINK_MAGIC 0x58534c4d /* XSLM */
-
-struct xfs_dsymlink_hdr {
- __be32 sl_magic;
- __be32 sl_offset;
- __be32 sl_bytes;
- __be32 sl_crc;
- uuid_t sl_uuid;
- __be64 sl_owner;
- __be64 sl_blkno;
- __be64 sl_lsn;
-};
-
-/*
- * The maximum pathlen is 1024 bytes. Since the minimum file system
- * blocksize is 512 bytes, we can get a max of 3 extents back from
- * bmapi when crc headers are taken into account.
- */
-#define XFS_SYMLINK_MAPS 3
-
-#define XFS_SYMLINK_BUF_SPACE(mp, bufsize) \
- ((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
- sizeof(struct xfs_dsymlink_hdr) : 0))
-
-int xfs_symlink_blocks(struct xfs_mount *mp, int pathlen);
-bool xfs_symlink_hdr_ok(struct xfs_mount *mp, 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);
-
-extern const struct xfs_buf_ops xfs_symlink_buf_ops;
-
-#ifdef __KERNEL__
+/* Kernel only symlink defintions */
int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
const char *target_path, umode_t mode, struct xfs_inode **ipp);
int xfs_readlink(struct xfs_inode *ip, char *link);
int xfs_inactive_symlink(struct xfs_inode *ip, struct xfs_trans **tpp);
-#endif /* __KERNEL__ */
#endif /* __XFS_SYMLINK_H */