xfs: add an x86 compat handler for XFS_IOC_ZERO_RANGE

XFS_IOC_ZERO_RANGE uses struct xfs_flock64, and thus requires argument
translation for 32-bit binaries on x86.  Add the required
XFS_IOC_ZERO_RANGE_32 defined and add it to the list of commands that
require xfs_flock64 translation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

2 files changed, 3 insertions, 1 deletions

diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index b3486dfa5520..54e623bfbb85 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -586,7 +586,8 @@ xfs_file_compat_ioctl(
         case XFS_IOC_RESVSP_32:
         case XFS_IOC_UNRESVSP_32:
         case XFS_IOC_RESVSP64_32:
-        case XFS_IOC_UNRESVSP64_32: {
+        case XFS_IOC_UNRESVSP64_32:
+        case XFS_IOC_ZERO_RANGE_32: {
                 struct xfs_flock64      bf;
 
                 if (xfs_compat_flock64_copyin(&bf, arg))
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h
index 08b605792a99..80f4060e8970 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.h
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.h
@@ -184,6 +184,7 @@ typedef struct compat_xfs_flock64 {
 #define XFS_IOC_UNRESVSP_32     _IOW('X', 41, struct compat_xfs_flock64)
 #define XFS_IOC_RESVSP64_32     _IOW('X', 42, struct compat_xfs_flock64)
 #define XFS_IOC_UNRESVSP64_32   _IOW('X', 43, struct compat_xfs_flock64)
+#define XFS_IOC_ZERO_RANGE_32   _IOW('X', 57, struct compat_xfs_flock64)
 
 typedef struct compat_xfs_fsop_geom_v1 {
         __u32           blocksize;      /* filesystem (data) block size */