linux-kernel - [PATCH 2/3] Remove XFS specific ioctl interfaces for freeze feature

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Message-Id: <20080908205301t-sato@mail.jp.nec.com>
Date:	Mon, 8 Sep 2008 20:53:01 +0900
From:	Takashi Sato <t-sato@...jp.nec.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	Oleg Nesterov <oleg@...sign.ru>
Cc:	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"dm-devel@...hat.com" <dm-devel@...hat.com>,
	"viro@...IV.linux.org.uk" <viro@...IV.linux.org.uk>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"xfs@....sgi.com" <xfs@....sgi.com>,
	"axboe@...nel.dk" <axboe@...nel.dk>,
	"mtk.manpages@...glemail.com" <mtk.manpages@...glemail.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/3] Remove XFS specific ioctl interfaces for freeze feature

It removes XFS specific ioctl interfaces and request codes
for freeze feature.
This patch has been supplied by David Chinner.

Signed-off-by: Dave Chinner <dgc@....com>
Signed-off-by: Takashi Sato <t-sato@...jp.nec.com>
---
 linux-2.6/xfs_ioctl.c   |   15 ---------------
 linux-2.6/xfs_ioctl32.c |    2 --
 xfs_fs.h                |    4 ++--
 3 files changed, 2 insertions(+), 19 deletions(-)

diff -uprN -X linux-2.6.27-rc5.org/Documentation/dontdiff linux-2.6.27-rc5-freeze/fs/xfs/linux-2.6/xfs_ioctl.c linux-2.6
.27-rc5-xfs/fs/xfs/linux-2.6/xfs_ioctl.c
--- linux-2.6.27-rc5-freeze/fs/xfs/linux-2.6/xfs_ioctl.c	2008-09-05 22:20:17.000000000 +0900
+++ linux-2.6.27-rc5-xfs/fs/xfs/linux-2.6/xfs_ioctl.c	2008-09-05 17:47:47.000000000 +0900
@@ -1529,21 +1529,6 @@ 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);
-		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;
 
diff -uprN -X linux-2.6.27-rc5.org/Documentation/dontdiff linux-2.6.27-rc5-freeze/fs/xfs/linux-2.6/xfs_ioctl32.c linux-2
.6.27-rc5-xfs/fs/xfs/linux-2.6/xfs_ioctl32.c
--- linux-2.6.27-rc5-freeze/fs/xfs/linux-2.6/xfs_ioctl32.c	2008-09-05 22:20:17.000000000 +0900
+++ linux-2.6.27-rc5-xfs/fs/xfs/linux-2.6/xfs_ioctl32.c	2008-09-05 17:47:47.000000000 +0900
@@ -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:
diff -uprN -X linux-2.6.27-rc5.org/Documentation/dontdiff linux-2.6.27-rc5-freeze/fs/xfs/xfs_fs.h linux-2.6.27-rc5-xfs/f
s/xfs/xfs_fs.h
--- linux-2.6.27-rc5-freeze/fs/xfs/xfs_fs.h	2008-09-05 22:20:17.000000000 +0900
+++ linux-2.6.27-rc5-xfs/fs/xfs/xfs_fs.h	2008-09-05 17:47:47.000000000 +0900
@@ -477,8 +477,8 @@ 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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