lkml.org 
[lkml]   [2018]   [Mar]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2 0/2] gfs2: Stop using rhashtable_walk_peek
On 29 March 2018 at 14:35, Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Thu, Mar 29, 2018 at 02:06:10PM +0200, Andreas Gruenbacher wrote:
>> Here's a second version of the patch (now a patch set) to eliminate
>> rhashtable_walk_peek in gfs2.
>>
>> The first patch introduces lockref_put_not_zero, the inverse of
>> lockref_get_not_zero.
>>
>> The second patch eliminates rhashtable_walk_peek in gfs2. In
>> gfs2_glock_iter_next, the new lockref function from patch one is used to
>> drop a lockref count as long as the count doesn't drop to zero. This is
>> almost always the case; if there is a risk of dropping the last
>> reference, we must defer that to a work queue because dropping the last
>> reference may sleep.
>
> In light of Neil's latest patch, do we still need this?

For all I know, Neil's latest plan is to get rhashtable_walk_peek
replaced and removed because it is unfixable. This patch removes the
one and only user.

Thanks,
Andreas

\
 
 \ /
  Last update: 2018-03-29 15:17    [W:0.107 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site