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[PATCH 1/10] VFS: Fix error handling of write_super_lockfs/unlockfs

To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, "linux-fsdevel@xxxxxxxxxxxxxxx" <linux-fsdevel@xxxxxxxxxxxxxxx>, "dm-devel@xxxxxxxxxx" <dm-devel@xxxxxxxxxx>, "viro@xxxxxxxxxxxxxxxxxx" <viro@xxxxxxxxxxxxxxxxxx>, "linux-ext4@xxxxxxxxxxxxxxx" <linux-ext4@xxxxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>, "axboe@xxxxxxxxx" <axboe@xxxxxxxxx>, "mtk.manpages@xxxxxxxxxxxxxx" <mtk.manpages@xxxxxxxxxxxxxx>
Subject: [PATCH 1/10] VFS: Fix error handling of write_super_lockfs/unlockfs
From: Takashi Sato <t-sato@xxxxxxxxxxxxx>
Date: Mon, 22 Sep 2008 19:55:26 +0900
Cc: "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>
I've changed the type of write_super_lockfs and unlockfs from "void" to
"int" so that they can return an error. 

Signed-off-by: Takashi Sato <t-sato@xxxxxxxxxxxxx>
Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@xxxxxxxxxxxxx>
---
 Documentation/filesystems/Locking |    4 ++--
 Documentation/filesystems/vfs.txt |    4 ++--
 include/linux/fs.h                |    4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff -uprN -X linux-2.6.27-rc7.org/Documentation/dontdiff 
linux-2.6.27-rc7.org/Documentation/filesystems/Locking linux-2
.6.27-rc7-lockfs/Documentation/filesystems/Locking
--- linux-2.6.27-rc7.org/Documentation/filesystems/Locking      2008-09-22 
07:29:55.000000000 +0900
+++ linux-2.6.27-rc7-lockfs/Documentation/filesystems/Locking   2008-09-22 
09:53:22.000000000 +0900
@@ -97,8 +97,8 @@ prototypes:
        void (*put_super) (struct super_block *);
        void (*write_super) (struct super_block *);
        int (*sync_fs)(struct super_block *sb, int wait);
-       void (*write_super_lockfs) (struct super_block *);
-       void (*unlockfs) (struct super_block *);
+       int (*write_super_lockfs) (struct super_block *);
+       int (*unlockfs) (struct super_block *);
        int (*statfs) (struct dentry *, struct kstatfs *);
        int (*remount_fs) (struct super_block *, int *, char *);
        void (*clear_inode) (struct inode *);
diff -uprN -X linux-2.6.27-rc7.org/Documentation/dontdiff 
linux-2.6.27-rc7.org/Documentation/filesystems/vfs.txt linux-2
.6.27-rc7-lockfs/Documentation/filesystems/vfs.txt
--- linux-2.6.27-rc7.org/Documentation/filesystems/vfs.txt      2008-09-22 
07:29:55.000000000 +0900
+++ linux-2.6.27-rc7-lockfs/Documentation/filesystems/vfs.txt   2008-09-22 
09:53:22.000000000 +0900
@@ -210,8 +210,8 @@ struct super_operations {
         void (*put_super) (struct super_block *);
         void (*write_super) (struct super_block *);
         int (*sync_fs)(struct super_block *sb, int wait);
-        void (*write_super_lockfs) (struct super_block *);
-        void (*unlockfs) (struct super_block *);
+        int (*write_super_lockfs) (struct super_block *);
+        int (*unlockfs) (struct super_block *);
         int (*statfs) (struct dentry *, struct kstatfs *);
         int (*remount_fs) (struct super_block *, int *, char *);
         void (*clear_inode) (struct inode *);
diff -uprN -X linux-2.6.27-rc7.org/Documentation/dontdiff 
linux-2.6.27-rc7.org/include/linux/fs.h linux-2.6.27-rc7-lockf
s/include/linux/fs.h
--- linux-2.6.27-rc7.org/include/linux/fs.h     2008-09-22 07:29:55.000000000 
+0900
+++ linux-2.6.27-rc7-lockfs/include/linux/fs.h  2008-09-22 09:53:46.000000000 
+0900
@@ -1314,8 +1314,8 @@ struct super_operations {
        void (*put_super) (struct super_block *);
        void (*write_super) (struct super_block *);
        int (*sync_fs)(struct super_block *sb, int wait);
-       void (*write_super_lockfs) (struct super_block *);
-       void (*unlockfs) (struct super_block *);
+       int (*write_super_lockfs) (struct super_block *);
+       int (*unlockfs) (struct super_block *);
        int (*statfs) (struct dentry *, struct kstatfs *);
        int (*remount_fs) (struct super_block *, int *, char *);
        void (*clear_inode) (struct inode *);

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