[XFS] Make the bulkstat_one compat ioctl handling more sane

Currently the compat formatter was handled by passing
in "private_data" for the xfs_bulkstat_one formatter,
which was really just another formatter... IMHO this
got confusing.

Instead, just make a new xfs_bulkstat_one_compat
formatter for xfs_bulkstat, and call it via a wrapper.

Also, don't translate the ioctl nrs into their native
counterparts, that just clouds the issue; we're in a
compat handler anyway, just switch on the 32-bit cmds.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
index a1f18fce9b70..e210a4c06569 100644
--- a/fs/xfs/xfs_itable.h
+++ b/fs/xfs/xfs_itable.h
@@ -74,6 +74,18 @@ typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
         const xfs_bstat_t       *buffer);        /* buffer to read from */
 
 int
+xfs_bulkstat_one_int(
+        xfs_mount_t             *mp,
+        xfs_ino_t               ino,
+        void                    __user *buffer,
+        int                     ubsize,
+        bulkstat_one_fmt_pf     formatter,
+        xfs_daddr_t             bno,
+        int                     *ubused,
+        void                    *dibuff,
+        int                     *stat);
+
+int
 xfs_bulkstat_one(
         xfs_mount_t             *mp,
         xfs_ino_t               ino,