On Fri, Mar 28, 2008 at 06:05:22PM +0900, Takashi Sato wrote:
> The ioctls for the generic freeze feature are below.
> o Freeze the filesystem
> int ioctl(int fd, int FIFREEZE, arg)
> fd: The file descriptor of the mountpoint
> FIFREEZE: request code for the freeze
> arg: Ignored
> Return value: 0 if the operation succeeds. Otherwise, -1
>
> o Unfreeze the filesystem
> int ioctl(int fd, int FITHAW, arg)
> fd: The file descriptor of the mountpoint
> FITHAW: request code for unfreeze
> arg: Ignored
> Return value: 0 if the operation succeeds. Otherwise, -1
Patch below to remove the XFS specific ioctl interfaces for this
functionality.
Signed-off-by: Dave Chinner <dgc@xxxxxxx>
---
fs/xfs/linux-2.6/xfs_ioctl.c | 15 ---------------
fs/xfs/linux-2.6/xfs_ioctl32.c | 2 --
fs/xfs/xfs_fs.h | 4 ++--
3 files changed, 2 insertions(+), 19 deletions(-)
Index: 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_ioctl.c
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/linux-2.6/xfs_ioctl.c 2008-03-31 08:33:19.000000000 +1000
+++ 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_ioctl.c 2008-03-31 09:06:08.531294896 +1000
@@ -1228,21 +1228,6 @@ xfs_ioctl(
return -error;
}
- case XFS_IOC_FREEZE:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (inode->i_sb->s_frozen == SB_UNFROZEN)
- freeze_bdev(inode->i_sb->s_bdev, 0);
- return 0;
-
- case XFS_IOC_THAW:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (inode->i_sb->s_frozen != SB_UNFROZEN)
- thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
- return 0;
-
case XFS_IOC_GOINGDOWN: {
__uint32_t in;
Index: 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_ioctl32.c
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/linux-2.6/xfs_ioctl32.c 2007-11-20 16:12:45.000000000 +1100
+++ 2.6.x-xfs-new/fs/xfs/linux-2.6/xfs_ioctl32.c 2008-03-31 09:06:38.011484411 +1000
@@ -398,8 +398,6 @@ xfs_compat_ioctl(
case XFS_IOC_FSGROWFSDATA:
case XFS_IOC_FSGROWFSLOG:
case XFS_IOC_FSGROWFSRT:
- case XFS_IOC_FREEZE:
- case XFS_IOC_THAW:
case XFS_IOC_GOINGDOWN:
case XFS_IOC_ERROR_INJECTION:
case XFS_IOC_ERROR_CLEARALL:
Index: 2.6.x-xfs-new/fs/xfs/xfs_fs.h
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/xfs_fs.h 2007-11-20 18:38:49.000000000 +1100
+++ 2.6.x-xfs-new/fs/xfs/xfs_fs.h 2008-03-31 09:09:54.902040723 +1000
@@ -473,8 +473,8 @@ typedef struct xfs_handle {
#define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
#define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
/* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
-#define XFS_IOC_FREEZE _IOWR('X', 119, int)
-#define XFS_IOC_THAW _IOWR('X', 120, int)
+/* XFS_IOC_FREEZE -- FIFREEZE 119 */
+/* XFS_IOC_THAW -- FITHAW 120 */
#define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
--
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