xfs: introduce xfs_sb.c for sharing with libxfs
xfs_mount.c is shared with userspace, but the only functions that
are shared are to do with physical superblock manipulations. This
means that less than 25% of the xfs_mount.c code is actually shared
with userspace. Move all the superblock functions to xfs_sb.c and
share that instead with libxfs.
Note that this will leave all the in-core transaction related
superblock counter modifications in xfs_mount.c as none of that is
shared with userspace. With a few more small changes, xfs_mount.h
won't need to be shared with userspace anymore, either.
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_mount.h b/fs/xfs/xfs_mount.h
index 27d0d5c..5488df1 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -292,14 +292,6 @@
}
/*
- * perag get/put wrappers for ref counting
- */
-struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno);
-struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *mp, xfs_agnumber_t agno,
- int tag);
-void xfs_perag_put(struct xfs_perag *pag);
-
-/*
* Per-cpu superblock locking functions
*/
#ifdef HAVE_PERCPU_SB
@@ -331,6 +323,8 @@
extern int xfs_log_sbcount(xfs_mount_t *);
extern __uint64_t xfs_default_resblks(xfs_mount_t *mp);
extern int xfs_mountfs(xfs_mount_t *mp);
+extern int xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount,
+ xfs_agnumber_t *maxagi);
extern void xfs_unmountfs(xfs_mount_t *);
extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
@@ -349,13 +343,4 @@
#endif /* __KERNEL__ */
-extern void xfs_sb_calc_crc(struct xfs_buf *);
-extern void xfs_mod_sb(struct xfs_trans *, __int64_t);
-extern int xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t,
- xfs_agnumber_t *);
-extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *);
-extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t);
-
-extern const struct xfs_buf_ops xfs_sb_buf_ops;
-
#endif /* __XFS_MOUNT_H__ */