| To: | Takashi Sato <t-sato@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 3/3] Add timeout feature |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Thu, 9 Oct 2008 06:18:09 -0400 |
| Cc: | Eric Sandeen <sandeen@xxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Ric Wheeler <rwheeler@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, axboe@xxxxxxxxx, mtk.manpages@xxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx |
| In-reply-to: | <0AD458D29A8E4938BB3914BB5C562C39@nsl.ad.nec.co.jp> |
| References: | <20080908205337t-sato@mail.jp.nec.com> <20080908171119.GB22521@infradead.org> <48DBFD42.6030307@redhat.com> <D0B0D91F884647D6808626CDFF81E532@nsl.ad.nec.co.jp> <20080929141326.GA31781@infradead.org> <48E0E7D4.1090409@sandeen.net> <20080929143749.GA13286@infradead.org> <48E0EA0B.7000701@sandeen.net> <0AD458D29A8E4938BB3914BB5C562C39@nsl.ad.nec.co.jp> |
| Sender: | xfs-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.5.18 (2008-05-17) |
On Thu, Oct 09, 2008 at 07:12:17PM +0900, Takashi Sato wrote: > I think we need the timeout for the case someone dirties so much data > with mmap, hence the freeze process is swapped out and cannot unfreeze. That is not supposed to happen. That's why write blocks early on a frozen filesystem (the shared mmap write path is currently missing the check, but that's a rather small patch) |
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