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do_remount(): pull touch_mnt_namespace() up

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... and don't bother with dropping and regaining vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-09-16 22:41:01 -04:00
parent aa7a574d0c
commit 6339dab869
1 changed files with 1 additions and 5 deletions
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6
fs/namespace.c
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@ -1849,14 +1849,10 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
br_write_lock(&vfsmount_lock);
mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
mnt->mnt.mnt_flags = mnt_flags;
br_write_unlock(&vfsmount_lock);
}
up_write(&sb->s_umount);
if (!err) {
br_write_lock(&vfsmount_lock);
touch_mnt_namespace(mnt->mnt_ns);
br_write_unlock(&vfsmount_lock);
}
up_write(&sb->s_umount);
return err;
}