Messages in this thread Patch in this message | | | Date | Wed, 14 Mar 2012 22:19:08 +0000 | From | Al Viro <> | Subject | Re: [PATCH] vfs namespace: Don't assume mount namespace has valid root |
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On Thu, Mar 15, 2012 at 12:00:52AM +0200, Sasha Levin wrote:
> I'm running 3.3.0-rc6-next-20120309-sasha-00002-g8fd19a0. > > I found that if I revert f8b88187 ("brlocks/lglocks: cleanups") it > seems that the problem is gone.
... along with this piece of offending commit: @@ -2249,10 +2250,9 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns, kfree(new_ns); return ERR_PTR(-ENOMEM); } - new_ns->root = new; - br_write_lock(vfsmount_lock); + br_write_lock(&vfsmount_lock); list_add_tail(&new_ns->list, &new->mnt_list); - br_write_unlock(vfsmount_lock); + br_write_unlock(&vfsmount_lock);
/* * Second pass: switch the tsk->fs->* elements and mark new vfsmounts @@ -2416,9 +2416,9 @@ bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
IOW, Andi has hit delete one too many times...
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