From: Linus Torvalds <torvalds@linux-foundation.org>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Dave Jones <davej@redhat.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Miklos Szeredi <mszeredi@suse.cz>, Jan Kara <jack@suse.cz>,
Peter Zijlstra <peterz@infradead.org>,
linux-fsdevel@vger.kernel.org,
"J. Bruce Fields" <bfields@redhat.com>,
Sage Weil <sage@newdream.net>
Subject: Re: processes hung after sys_renameat, and 'missing' processes
Date: Thu, 7 Jun 2012 17:42:02 -0700 [thread overview]
Message-ID: <CA+55aFwvtdJsFEit4N3OVKZH2jpvxnB9843nhQeqGu99aUOQpw@mail.gmail.com> (raw)
In-Reply-To: <20120608003604.GK30000@ZenIV.linux.org.uk>
On Thu, Jun 7, 2012 at 5:36 PM, Al Viro <viro@zeniv.linux.org.uk> wrote:
>
> Frankly, I would very much prefer to have the same locking rules wherever
> possible. The locking system is already overcomplicated and making its
> analysis fs-dependent as well... <shudder>
I do agree that it would be better if we avoid it. I was just trying
to explain that the dentry locking is *not* enough, for the simple
reason that it relies on upper-level non-dentry locking just to work.
Your patch looks good, but whether it works I have no idea ;)
Linus
next prev parent reply other threads:[~2012-06-08 0:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20120603232820.GQ30000@ZenIV.linux.org.uk>
[not found] ` <20120606194233.GA1537@redhat.com>
[not found] ` <CA+55aFwxFVLPk4-dp73uccKXepKwjpGFgh0NW1u8d0zYzr=hBA@mail.gmail.com>
[not found] ` <20120606230040.GA18089@redhat.com>
[not found] ` <CA+55aFx_oREEd2XS_aG7PJ7dwzWjgx689V_uRPGWpVS01_++6A@mail.gmail.com>
[not found] ` <20120606235403.GC30000@ZenIV.linux.org.uk>
[not found] ` <20120607002914.GB22223@redhat.com>
[not found] ` <CA+55aFyp2GUbc218eb5BDyAqz+cOPTJMVcb4ptk+f1_RBB+-mg@mail.gmail.com>
[not found] ` <20120607011915.GA17566@redhat.com>
[not found] ` <20120607012900.GE30000@ZenIV.linux.org.uk>
2012-06-07 19:36 ` processes hung after sys_renameat, and 'missing' processes Al Viro
2012-06-07 20:43 ` Sage Weil
2012-06-07 23:12 ` Eric W. Biederman
2012-06-07 23:39 ` Al Viro
2012-06-07 23:57 ` Linus Torvalds
2012-06-08 0:36 ` Al Viro
2012-06-08 0:42 ` Linus Torvalds [this message]
2012-06-08 0:59 ` Al Viro
2012-06-08 5:25 ` Eric W. Biederman
2012-06-08 5:48 ` Al Viro
2012-06-08 7:54 ` Eric W. Biederman
2012-06-08 20:20 ` Al Viro
2012-06-08 2:08 ` Eric W. Biederman
2012-06-08 2:37 ` Al Viro
2012-06-08 2:18 ` Al Viro
2012-06-08 16:22 ` J. Bruce Fields
2012-06-08 17:44 ` Linus Torvalds
2012-06-11 12:17 ` J. Bruce Fields
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