[XFS] Make growfs work for amounts greater than 2TB

The free block modification code has a 32bit interface, limiting the size
the filesystem can be grown even on 64 bit machines. On 32 bit machines,
there are other 32bit variables in transaction structures and interfaces
that need to be expanded to allow this to work.

SGI-PV: 959978
SGI-Modid: xfs-linux-melb:xfs-kern:27894a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 9c33af88514e..9a8e7151b65c 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -586,10 +586,11 @@ xfs_icsb_unlock(xfs_mount_t *mp)
 
 /*
  * This structure is for use by the xfs_mod_incore_sb_batch() routine.
+ * xfs_growfs can specify a few fields which are more than int limit
  */
 typedef struct xfs_mod_sb {
         xfs_sb_field_t  msb_field;      /* Field to modify, see below */
-        int             msb_delta;      /* Change to make to specified field */
+        int64_t         msb_delta;      /* Change to make to specified field */
 } xfs_mod_sb_t;
 
 #define XFS_MOUNT_ILOCK(mp)     mutex_lock(&((mp)->m_ilock))
@@ -607,9 +608,9 @@ extern int	xfs_unmountfs(xfs_mount_t *, struct cred *);
 extern void     xfs_unmountfs_close(xfs_mount_t *, struct cred *);
 extern int      xfs_unmountfs_writesb(xfs_mount_t *);
 extern int      xfs_unmount_flush(xfs_mount_t *, int);
-extern int      xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int);
+extern int      xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
 extern int      xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t,
-                        int, int);
+                        int64_t, int);
 extern int      xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
                         uint, int);
 extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);