From: ebiederm@xmission.com (Eric W. Biederman)
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Linux Containers <containers@lists.linux-foundation.org>,
linux-fsdevel@vger.kernel.org,
"Serge E. Hallyn" <serge@hallyn.com>,
Andy Lutomirski <luto@amacapital.net>,
Chen Hanxiao <chenhanxiao@cn.fujitsu.com>,
Richard Weinberger <richard@nod.at>,
Andrey Vagin <avagin@openvz.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH review 11/11] mnt: Honor MNT_LOCKED when detaching mounts
Date: Fri, 09 Jan 2015 15:30:10 -0600 [thread overview]
Message-ID: <87k30vwskd.fsf@x220.int.ebiederm.org> (raw)
In-Reply-To: <20150109203126.GI22149@ZenIV.linux.org.uk> (Al Viro's message of "Fri, 9 Jan 2015 20:31:26 +0000")
Al Viro <viro@ZenIV.linux.org.uk> writes:
> On Thu, Jan 08, 2015 at 10:32:13PM +0000, Al Viro wrote:
>> a) easily expressed with that scheme (behaviour is almost identical
>> to what your series does, except that we'd empty mnt_child right in
>> mntput_no_expire(), rather than keeping it until cleanup_mnt()) and
>> b) easily generalized to MNT_DETACH with lazy dissolving; in fact,
>> the only difference would be to treat *all* submounts as "don't put on
>> global list, don't remove from child list", not just the MNT_LOCKED ones.
I have no problem with treating all mounts whose parents are also being
unmounted as "don't put on global list, don't remove from child list"
Replacing the mnt_ex_mountpoint struct path with a fs_pin seems
reasonable.
We need to be careful with mounts that have parents that are not being
unmounted, with respect to the mount hash table but that just looks like
a detail in the overall scheme of things.
And if delaying the disolution of mounts in the mount detach case is a
long held wishlist item I am all for going there. I have a patch I was
playing with that did that, I just didn't include it because that is a
bug fix kind of thing.
>> I'll play around with that today and tomorrow; hopefully, I'll have a postable
>> variant by the weekend...
>
> Hmm... Linus, what do you think of the following?
>
> struct foo {
> int done;
> wait_queue_head_t wait;
> ...
> };
>
Where does the rcu_read_lock() happen?
I assume this is kill from fs_pin.kill?
> void kill_foo(struct foo *p)
> {
> wait_queue_t wait;
> wait.flags = WQ_FLAG_EXCLUSIVE;
> wait.private = current;
> wait.func = autoremove_wake_function;
> spin_lock_irq(&p->wait.lock);
> if (likely(!p->done)) {
> p->done = -1;
> spin_unlock_irq(&p->wait.lock);
> rcu_read_unlock();
> /* do cleanup */
> ...
> /* remove references to *p */
> ...
> spin_lock_irq(&p->wait.lock);
> p->done = 1;
> wake_up_locked(&p->wait);
> spin_unlock_irq(&p->wait.lock);
> /* RCU-schedule freeing of p */
> ...
> return;
> }
> if (p->done > 0) {
> spin_unlock_irq(&p->wait.lock);
> rcu_read_unlock();
> return;
> }
> __add_wait_queue_tail(&p->wait, &wait);
> while (1) {
> set_current_state(TASK_UNINITERRUPTIBLE);
> spin_unlock_irq(&p->wait.lock);
> rcu_read_unlock();
> schedule();
> rcu_read_lock();
> if (likely(list_empty(&wait.task_list)))
> break;
> /* OK, we know p couldn't have been freed yet */
> spin_lock_irq(&p->wait.lock);
> if (p->done > 0) {
> spin_unlock_irq(&p->wait.lock);
> break;
> }
> }
> rcu_read_unlock();
> }
>
> AFAICS, that ought to be safe - the first caller makes sure that everybody
> else will wait for it to finish, everybody else (ones who come via references
> before the first one has removed them) will be waiting for the first one
> to do wakeup *and* will take care not to touch the victim unless they knows
> it's still there.
>
> Do you see any problems with the above? I wonder if I ended up open-coding
> something already existing in there...
Your struct foo looks an awful lot like struct completion at first
glance.
Eric
next prev parent reply other threads:[~2015-01-09 21:32 UTC|newest]
Thread overview: 240+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-02 21:42 [PATCH review 0/9] Call for testing and review of mount detach fixes Eric W. Biederman
2015-01-02 21:42 ` Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 2/9] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 3/9] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
[not found] ` <871tncuaf6.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-02 21:52 ` [PATCH review 1/9] mnt: Improve the umount_tree flags Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 2/9] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 3/9] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 4/9] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 5/9] mnt: Delay removal from the mount hash Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 6/9] mnt: Factor out __detach_mnt from detach_mnt Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 7/9] mnt: Simplify umount_tree Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 8/9] mnt: Remove redundant NULL tests in namespace_unlock Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 9/9] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
2015-01-05 20:45 ` [PATCH review 0/11 Call for testing and review of mount detach fixes (take 2) Eric W. Biederman
[not found] ` <87mw5xq7lt.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-05 20:46 ` [PATCH review 01/11] mnt: Improve the umount_tree flags Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 02/11] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 03/11] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 04/11] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 05/11] mnt: Delay removal from the mount hash Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 06/11] mnt: Factor out __detach_mnt from detach_mnt Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 07/11] mnt: Simplify umount_tree Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 08/11] mnt: Remove redundant NULL tests in namespace_unlock Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 09/11] mnt: On an unmount propagate clearing of MNT_LOCKED Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 10/11] mnt: Don't propagate unmounts to locked mounts Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 11/11] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
2015-04-03 1:53 ` [PATCH review 0/19] Locked mount and loopback mount fixes Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 02/11] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 03/11] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 04/11] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 06/11] mnt: Factor out __detach_mnt from detach_mnt Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 07/11] mnt: Simplify umount_tree Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 08/11] mnt: Remove redundant NULL tests in namespace_unlock Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 09/11] mnt: On an unmount propagate clearing of MNT_LOCKED Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 10/11] mnt: Don't propagate unmounts to locked mounts Eric W. Biederman
2015-01-05 20:46 ` [PATCH review 11/11] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
[not found] ` <1420490787-14387-11-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-01-07 18:43 ` Al Viro
2015-01-07 18:43 ` Al Viro
[not found] ` <20150107184334.GZ22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-07 19:28 ` Al Viro
[not found] ` <20150107192807.GA22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-07 19:53 ` Eric W. Biederman
2015-01-07 19:30 ` Eric W. Biederman
2015-01-07 19:30 ` Eric W. Biederman
[not found] ` <87h9w2gzht.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-07 20:52 ` Al Viro
[not found] ` <20150107205239.GB22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-07 21:51 ` Eric W. Biederman
2015-01-08 0:22 ` Al Viro
2015-01-08 3:02 ` Al Viro
[not found] ` <20150108030229.GD22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-08 3:11 ` Al Viro
[not found] ` <20150108002227.GC22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-08 3:02 ` Al Viro
2015-01-08 22:32 ` Al Viro
[not found] ` <20150108223212.GF22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-09 20:31 ` Al Viro
2015-01-09 20:31 ` Al Viro
2015-01-09 21:30 ` Eric W. Biederman [this message]
[not found] ` <87k30vwskd.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-09 22:17 ` Al Viro
[not found] ` <20150109221715.GN22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-09 22:25 ` Eric W. Biederman
[not found] ` <20150109203126.GI22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-09 21:30 ` Eric W. Biederman
2015-01-10 5:32 ` Eric W. Biederman
[not found] ` <87h9vzryio.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-10 5:51 ` Al Viro
[not found] ` <20150110055148.GY22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-11 2:00 ` Al Viro
2015-01-16 18:29 ` Eric W. Biederman
[not found] ` <20150111020030.GF22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-11 2:50 ` Al Viro
2015-01-16 18:29 ` Eric W. Biederman
[not found] ` <87iogi8dka.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-08 0:22 ` Al Viro
2015-04-03 1:53 ` [PATCH review 0/19] Locked mount and loopback mount fixes Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 01/19] mnt: Use hlist_move_list in namespace_unlock Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 02/19] mnt: Improve the umount_tree flags Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 03/19] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 04/19] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 05/19] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 06/19] mnt: Delay removal from the mount hash Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 07/19] mnt: On an unmount propagate clearing of MNT_LOCKED Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 08/19] mnt: Don't propagate unmounts to locked mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 09/19] mnt: Fail collect_mounts when applied to unmounted mounts Eric W. Biederman
2015-04-03 8:55 ` Lukasz Pawelczyk
[not found] ` <1428051353.1924.2.camel-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2015-04-09 16:39 ` Eric W. Biederman
[not found] ` <1428026183-14879-9-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-04-03 8:55 ` Lukasz Pawelczyk
[not found] ` <87a8yqou41.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-03 1:56 ` [PATCH review 01/19] mnt: Use hlist_move_list in namespace_unlock Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 02/19] mnt: Improve the umount_tree flags Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 03/19] mnt: Don't propagate umounts in __detach_mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 04/19] mnt: In umount_tree reuse mnt_list instead of mnt_hash Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 05/19] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 06/19] mnt: Delay removal from the mount hash Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 07/19] mnt: On an unmount propagate clearing of MNT_LOCKED Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 08/19] mnt: Don't propagate unmounts to locked mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 09/19] mnt: Fail collect_mounts when applied to unmounted mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 10/19] mnt: Factor out unhash_mnt from detach_mnt and umount_tree Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 11/19] mnt: Factor umount_mnt from umount_tree Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 12/19] fs_pin: Allow for the possibility that m_list or s_list go unused Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 13/19] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 14/19] mnt: Fix the error check in __detach_mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 15/19] mnt: Update detach_mounts to leave mounts connected Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 16/19] mnt: Track which mounts use a dentry as root Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 17/19] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 18/19] vfs: Handle mounts whose parents are unreachable from their mountpoint Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 19/19] vfs: Do not allow escaping from bind mounts Eric W. Biederman
2015-04-08 23:31 ` [PATCH review 0/4] Loopback mount escape fixes Eric W. Biederman
2015-04-16 23:40 ` [GIT PULL] Usernamespace related locked mount fixes Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 10/19] mnt: Factor out unhash_mnt from detach_mnt and umount_tree Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 11/19] mnt: Factor umount_mnt from umount_tree Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 12/19] fs_pin: Allow for the possibility that m_list or s_list go unused Eric W. Biederman
[not found] ` <1428026183-14879-12-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-05-11 13:36 ` Konstantin Khlebnikov
2015-04-03 1:56 ` [PATCH review 13/19] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 14/19] mnt: Fix the error check in __detach_mounts Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 15/19] mnt: Update detach_mounts to leave mounts connected Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 16/19] mnt: Track which mounts use a dentry as root Eric W. Biederman
[not found] ` <1428026183-14879-16-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-04-03 5:54 ` Al Viro
[not found] ` <20150403055449.GE889-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-04-03 10:31 ` Eric W. Biederman
2015-04-07 20:22 ` Eric W. Biederman
2015-04-07 20:22 ` Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 17/19] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 18/19] vfs: Handle mounts whose parents are unreachable from their mountpoint Eric W. Biederman
2015-04-03 1:56 ` [PATCH review 19/19] vfs: Do not allow escaping from bind mounts Eric W. Biederman
2015-04-03 6:20 ` Al Viro
[not found] ` <20150403062035.GF889-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-04-03 10:22 ` Eric W. Biederman
[not found] ` <1428026183-14879-19-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-04-03 6:20 ` Al Viro
2015-04-08 23:31 ` [PATCH review 0/4] Loopback mount escape fixes Eric W. Biederman
2015-04-08 23:33 ` [PATCH review 3/4] vfs: Handle mounts whose parents are unreachable from their mountpoint Eric W. Biederman
2015-04-08 23:34 ` [PATCH review 4/4] vfs: Do not allow escaping from bind mounts Eric W. Biederman
[not found] ` <87iod68aa3.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-09 13:06 ` Jann Horn
2015-04-09 23:22 ` Al Viro
2015-04-09 13:06 ` Jann Horn
[not found] ` <20150409130601.GA22250-J1fxOzX/cBvk1uMJSBkQmQ@public.gmane.org>
2015-04-09 16:52 ` Eric W. Biederman
2015-04-09 23:22 ` Al Viro
2015-04-10 2:51 ` Eric W. Biederman
[not found] ` <874moo1ysg.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-10 3:14 ` Al Viro
2015-04-10 3:14 ` Al Viro
[not found] ` <20150409232212.GX889-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-04-10 2:51 ` Eric W. Biederman
2015-04-13 12:18 ` [PATCH review 0/4] Loopback mount escape fixes Miklos Szeredi
[not found] ` <CAELBmZBCCC1dspo4rPkFfh3c6RZBUYAZpz0tbUSukcf9att7Cw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-07-24 20:39 ` Eric W. Biederman
2015-07-24 20:39 ` Eric W. Biederman
[not found] ` <874moq9oyb.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-08 23:32 ` [PATCH review 1/4] mnt: Track which mounts use a dentry as root Eric W. Biederman
2015-04-08 23:32 ` [PATCH review 2/4] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
[not found] ` <87sica8ac5.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-09 23:16 ` Al Viro
[not found] ` <20150409231636.GW889-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-04-10 2:24 ` Eric W. Biederman
2015-04-08 23:33 ` [PATCH review 3/4] vfs: Handle mounts whose parents are unreachable from their mountpoint Eric W. Biederman
2015-04-08 23:34 ` [PATCH review 4/4] vfs: Do not allow escaping from bind mounts Eric W. Biederman
2015-04-09 19:01 ` [PATCH review 0/4] Loopback mount escape fixes Eric W. Biederman
2015-04-09 19:12 ` Al Viro
2015-04-09 19:14 ` Eric W. Biederman
[not found] ` <20150409191232.GV889-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-04-09 19:14 ` Eric W. Biederman
[not found] ` <87egnt5dok.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-09 19:12 ` Al Viro
2015-04-13 12:18 ` Miklos Szeredi
2015-08-03 21:25 ` [PATCH review 0/6] Bind " Eric W. Biederman
2015-08-03 21:26 ` [PATCH review 1/6] mnt: Track which mounts use a dentry as root Eric W. Biederman
2015-08-07 10:46 ` Nikolay Borisov
[not found] ` <55C48C94.6050804-6AxghH7DbtA@public.gmane.org>
2015-08-07 15:43 ` Eric W. Biederman
2015-08-07 15:43 ` Eric W. Biederman
[not found] ` <87vbcw9i8g.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-07 10:46 ` Nikolay Borisov
[not found] ` <871tfkawu9.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-03 21:26 ` Eric W. Biederman
2015-08-03 21:26 ` [PATCH review 2/6] dcache: Handle escaped paths in prepend_path Eric W. Biederman
2015-08-03 21:27 ` [PATCH review 3/6] dcache: Implement d_common_ancestor Eric W. Biederman
2015-08-03 21:27 ` [PATCH review 4/6] mnt: Track when a directory escapes a bind mount Eric W. Biederman
2015-08-03 21:30 ` [PATCH review 5/6] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-08-03 21:30 ` [PATCH review 6/6] vfs: Cache the results of path_connected Eric W. Biederman
2015-08-05 3:14 ` [PATCH review 7/6] vfs: Make mnt_escape_count 64bit Eric W. Biederman
2015-08-03 21:27 ` [PATCH review 4/6] mnt: Track when a directory escapes a bind mount Eric W. Biederman
[not found] ` <87egjk9i61.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-10 4:36 ` Al Viro
[not found] ` <20150810043637.GC14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-10 4:43 ` Al Viro
2015-08-14 4:10 ` Eric W. Biederman
2015-08-14 4:10 ` Eric W. Biederman
[not found] ` <877foymrwt.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-14 4:29 ` [PATCH review 0/8] Bind mount escape fixes Eric W. Biederman
2015-08-14 4:30 ` [PATCH review 1/8] dcache: Handle escaped paths in prepend_path Eric W. Biederman
2015-08-14 4:30 ` [PATCH review 2/8] dcache: Reduce the scope of i_lock in d_splice_alias Eric W. Biederman
[not found] ` <87wpwyjxwc.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-14 4:30 ` [PATCH review 1/8] dcache: Handle escaped paths in prepend_path Eric W. Biederman
2015-08-14 4:30 ` [PATCH review 2/8] dcache: Reduce the scope of i_lock in d_splice_alias Eric W. Biederman
2015-08-14 4:31 ` [PATCH review 3/8] dcache: Clearly separate the two directory rename cases " Eric W. Biederman
2015-08-14 4:32 ` [PATCH review 4/8] mnt: Track which mounts use a dentry as root Eric W. Biederman
2015-08-14 4:33 ` [PATCH review 5/8] dcache: Implement d_common_ancestor Eric W. Biederman
2015-08-14 4:34 ` [PATCH review 6/8] dcache: Only read d_flags once is d_is_dir Eric W. Biederman
2015-08-14 4:35 ` [PATCH review 7/8] mnt: Track when a directory escapes a bind mount Eric W. Biederman
2015-08-14 4:36 ` [PATCH review 8/8] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-08-14 4:31 ` [PATCH review 3/8] dcache: Clearly separate the two directory rename cases in d_splice_alias Eric W. Biederman
[not found] ` <87fv3mjxsc.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-15 6:16 ` Al Viro
[not found] ` <20150815061617.GG14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-15 18:25 ` Eric W. Biederman
[not found] ` <874mk08l3g.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-15 18:35 ` [PATCH review 0/7] Bind mount escape fixes Eric W. Biederman
2015-08-15 18:36 ` [PATCH review 1/7] dcache: Handle escaped paths in prepend_path Eric W. Biederman
2015-08-15 18:36 ` [PATCH review 2/7] dcache: Reduce the scope of i_lock in d_splice_alias Eric W. Biederman
[not found] ` <87a8ts763c.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-15 18:36 ` [PATCH review 1/7] dcache: Handle escaped paths in prepend_path Eric W. Biederman
2015-08-15 18:36 ` [PATCH review 2/7] dcache: Reduce the scope of i_lock in d_splice_alias Eric W. Biederman
2015-08-15 18:37 ` [PATCH review 3/7] mnt: Track which mounts use a dentry as root Eric W. Biederman
2015-08-15 18:37 ` [PATCH review 4/7] dcache: Implement d_common_ancestor Eric W. Biederman
2015-08-15 18:38 ` [PATCH review 5/7] dcache: Only read d_flags once in d_is_dir Eric W. Biederman
2015-08-15 19:36 ` [PATCH review 0/7] Bind mount escape fixes Linus Torvalds
2015-08-15 18:37 ` [PATCH review 4/7] dcache: Implement d_common_ancestor Eric W. Biederman
2015-08-15 19:36 ` [PATCH review 0/7] Bind mount escape fixes Linus Torvalds
[not found] ` <CA+55aFzMuCn33yK71HoKnj1hr8=ac_Y-vfE5mM8h4f3YJeGKvg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-15 19:48 ` Linus Torvalds
[not found] ` <CA+55aFyeu-p_3eJQCLM0TDuLYvo10mx379FaCFq7Z103RgKvVA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-15 21:07 ` Eric W. Biederman
[not found] ` <E2AECA7F-ED57-4FCD-A4C0-8C7C4B860FB6-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-08-15 22:47 ` Linus Torvalds
[not found] ` <CA+55aFx2s7TrmPKviKnFL0nGRZDHuCajW_UO02EnF+CsJY2-4w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-16 0:59 ` Eric W. Biederman
[not found] ` <87bne82glg.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-16 1:27 ` [PATCH] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-08-17 3:56 ` NeilBrown
[not found] ` <87tws010r2.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-17 3:56 ` NeilBrown
2015-08-16 2:12 ` [PATCH review 0/7] Bind mount escape fixes Al Viro
[not found] ` <20150816021209.GI14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-16 2:25 ` Linus Torvalds
2015-08-16 2:25 ` Linus Torvalds
[not found] ` <CA+55aFy3pzEY=4dfd_PX-Og_b7fqrG1rDniOqehBfQhXb=Cg9A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-16 4:53 ` Al Viro
[not found] ` <20150816045322.GJ14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-16 6:22 ` Eric W. Biederman
2015-08-16 6:55 ` Al Viro
[not found] ` <20150816065503.GL14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-16 7:04 ` Al Viro
2015-08-16 11:33 ` Eric W. Biederman
[not found] ` <87bne7piwu.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-21 7:51 ` Al Viro
2015-08-21 15:27 ` Eric W. Biederman
[not found] ` <20150821075105.GF18890-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-21 15:27 ` Eric W. Biederman
[not found] ` <87fv3ju4zy.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-16 6:55 ` Al Viro
2015-08-16 11:51 ` Eric W. Biederman
2015-08-16 22:29 ` Willy Tarreau
[not found] ` <87egj3moxm.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-16 22:29 ` Willy Tarreau
2015-08-15 18:39 ` [PATCH review 6/7] mnt: Track when a directory escapes a bind mount Eric W. Biederman
2015-08-15 18:39 ` [PATCH review 7/7] vfs: Test for and handle paths that are unreachable from their mnt_root Eric W. Biederman
2015-08-15 18:39 ` Eric W. Biederman
2015-08-03 21:30 ` [PATCH review 5/6] " Eric W. Biederman
[not found] ` <878u9s9i1d.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-10 4:38 ` Al Viro
[not found] ` <20150810043814.GD14139-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-08-10 19:34 ` Eric W. Biederman
2015-08-03 21:30 ` [PATCH review 6/6] vfs: Cache the results of path_connected Eric W. Biederman
[not found] ` <8738009i0h.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-04 11:52 ` Andrew Vagin
2015-08-04 11:52 ` Andrew Vagin
[not found] ` <20150804115215.GA317-wo1vFcy6AUs@public.gmane.org>
2015-08-04 17:41 ` Eric W. Biederman
2015-08-04 19:44 ` J. Bruce Fields
2015-08-04 22:58 ` Eric W. Biederman
[not found] ` <874mkey824.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-05 15:59 ` J. Bruce Fields
[not found] ` <20150805155948.GD17797-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-08-05 16:28 ` Eric W. Biederman
[not found] ` <878u9pwvg8.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-28 19:43 ` J. Bruce Fields
2015-08-28 19:45 ` J. Bruce Fields
[not found] ` <20150828194540.GF10468-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-08-31 21:17 ` Eric W. Biederman
[not found] ` <87k2sb88ev.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-09-01 14:46 ` J. Bruce Fields
2015-09-01 18:00 ` Eric W. Biederman
[not found] ` <877foavx3f.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-09-01 18:11 ` J. Bruce Fields
2015-09-01 18:11 ` J. Bruce Fields
[not found] ` <20150901144632.GA32692-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-09-01 18:00 ` Eric W. Biederman
[not found] ` <20150828194302.GE10468-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-08-28 19:45 ` J. Bruce Fields
[not found] ` <20150804194447.GB6664-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-08-04 22:58 ` Eric W. Biederman
[not found] ` <871tfj0x4j.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-08-04 19:44 ` J. Bruce Fields
2015-04-16 23:40 ` [GIT PULL] Usernamespace related locked mount fixes Eric W. Biederman
[not found] ` <87383z1w1v.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-04-16 23:42 ` Eric W. Biederman
2015-04-16 23:42 ` Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 4/9] mnt: Add MNT_UMOUNT flag Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 5/9] mnt: Delay removal from the mount hash Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 6/9] mnt: Factor out __detach_mnt from detach_mnt Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 7/9] mnt: Simplify umount_tree Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 8/9] mnt: Remove redundant NULL tests in namespace_unlock Eric W. Biederman
2015-01-02 21:52 ` [PATCH review 9/9] mnt: Honor MNT_LOCKED when detaching mounts Eric W. Biederman
[not found] ` <1420235574-15177-9-git-send-email-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2015-01-03 2:27 ` Eric W. Biederman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87k30vwskd.fsf@x220.int.ebiederm.org \
--to=ebiederm@xmission.com \
--cc=avagin@openvz.org \
--cc=chenhanxiao@cn.fujitsu.com \
--cc=containers@lists.linux-foundation.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=richard@nod.at \
--cc=serge@hallyn.com \
--cc=torvalds@linux-foundation.org \
--cc=viro@ZenIV.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.