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List:       dm-devel
Subject:    Re: [dm-devel] [PATCH] RFC: dm: avoid the mutex lock in dm_bufio_shrink_count()
From:       David Rientjes <rientjes () google ! com>
Date:       2016-11-29 0:56:18
Message-ID: alpine.DEB.2.10.1611281656020.107214 () chino ! kir ! corp ! google ! com
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On Wed, 23 Nov 2016, Mikulas Patocka wrote:

> From: Mikulas Patocka <mpatocka@redhat.com>
> 
> dm-bufio: don't take the lock in dm_bufio_shrink_count
> 
> dm_bufio_shrink_count is called from do_shrink_slab to find out how many
> freeable objects are there. The reported value doesn't have to be precise,
> so we don't need to take the dm-bufio lock.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Acked-by: David Rientjes <rientjes@google.com>

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