On Thu, 8 Nov 2012, Andrew Morton wrote:
> Date: Thu, 8 Nov 2012 11:14:18 -0800
> From: Andrew Morton
> To: Lukas Czerner
> Cc: ax...@kernel.dk, dchin...@redhat.com, jmo...@redhat.com,
> linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v2] loop: Limit the number of r
On Thu, 8 Nov 2012, Jeff Moyer wrote:
> Date: Thu, 08 Nov 2012 16:53:01 -0500
> From: Jeff Moyer
> To: Lukas Czerner
> Cc: ax...@kernel.dk, dchin...@redhat.com, linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v2] loop: Limit the number of requests in the bio list
>
>
On Fri, 9 Nov 2012, Jens Axboe wrote:
> Date: Fri, 09 Nov 2012 08:34:03 +0100
> From: Jens Axboe
> To: Andrew Morton
> Cc: Lukas Czerner , dchin...@redhat.com,
> jmo...@redhat.com, linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v2] loop: Limit the number of reques
On 2012-11-08 20:14, Andrew Morton wrote:
> On Tue, 16 Oct 2012 11:21:45 +0200
> Lukas Czerner wrote:
>
>> Currently there is not limitation of number of requests in the loop bio
>> list. This can lead into some nasty situations when the caller spawns
>> tons of bio requests taking huge amount of
Lukas Czerner writes:
> + if (lo->lo_bio_count >= lo->lo_queue->nr_requests) {
> + unsigned int nr;
> + spin_unlock_irq(&lo->lo_lock);
> + nr = lo->lo_queue->nr_requests - (lo->lo_queue->nr_requests/8);
> + wait_event_interruptible(lo->lo_req_wa
Andrew Morton writes:
> On Tue, 16 Oct 2012 11:21:45 +0200
> Lukas Czerner wrote:
>
>> Currently there is not limitation of number of requests in the loop bio
>> list. This can lead into some nasty situations when the caller spawns
>> tons of bio requests taking huge amount of memory. This is ev
On Tue, 16 Oct 2012 11:21:45 +0200
Lukas Czerner wrote:
> Currently there is not limitation of number of requests in the loop bio
> list. This can lead into some nasty situations when the caller spawns
> tons of bio requests taking huge amount of memory. This is even more
> obvious with discard w
Currently there is not limitation of number of requests in the loop bio
list. This can lead into some nasty situations when the caller spawns
tons of bio requests taking huge amount of memory. This is even more
obvious with discard where blkdev_issue_discard() will submit all bios
for the range and
8 matches
Mail list logo
