[PATCH 2/9] vfs: ignore error on forced remount

From: Miklos Szeredi
Date: Tue Oct 05 2010 - 06:32:17 EST


From: Miklos Szeredi <mszeredi@xxxxxxx>

On emergency remount we want to force MS_RDONLY on the super block
even if ->remount_fs() failed for some reason.

Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
---
fs/super.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6/fs/super.c
===================================================================
--- linux-2.6.orig/fs/super.c 2010-10-01 20:40:42.000000000 +0200
+++ linux-2.6/fs/super.c 2010-10-01 21:55:01.000000000 +0200
@@ -579,7 +579,8 @@ int do_remount_sb(struct super_block *sb

if (sb->s_op->remount_fs) {
retval = sb->s_op->remount_fs(sb, &flags, data);
- if (retval)
+ /* If forced remount, go ahead despite any errors */
+ if (retval && !force)
return retval;
}
sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);

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