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authorAl Viro <viro@zeniv.linux.org.uk>2009-05-06 10:43:07 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:08 -0400
commitbbd6851a3213a525128473e978b692ab6ac11aba (patch)
tree8ebddebadd8992871ab98456187cb00849a82058 /fs/hpfs
parent6cfd0148425e528b859b26e436b01f23f6926224 (diff)
downloadblackbird-op-linux-bbd6851a3213a525128473e978b692ab6ac11aba.tar.gz
blackbird-op-linux-bbd6851a3213a525128473e978b692ab6ac11aba.zip
Push lock_super() into the ->remount_fs() of filesystems that care about it
Note that since we can't run into contention between remount_fs and write_super (due to exclusion on s_umount), we have to care only about filesystems that touch lock_super() on their own. Out of those ext3, ext4, hpfs, sysv and ufs do need it; fat doesn't since its ->remount_fs() only accesses assign-once data (basically, it's "we have no atime on directories and only have atime on files for vfat; force nodiratime and possibly noatime into *flags"). [folded a build fix from hch] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/hpfs')
-rw-r--r--fs/hpfs/super.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 437a32e9deac..f68193cf0811 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -398,6 +398,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
*flags |= MS_NOATIME;
+ lock_super(s);
uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode;
lowercase = sbi->sb_lowercase; conv = sbi->sb_conv;
@@ -430,9 +431,11 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
replace_mount_options(s, new_opts);
+ unlock_super(s);
return 0;
out_err:
+ unlock_super(s);
kfree(new_opts);
return -EINVAL;
}
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