Messages in this thread | | | Date | Thu, 22 May 2014 11:59:34 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 2/3] fs/superblock: Avoid locking counting inodes and dentries before reclaiming them |
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On 05/22/2014 05:09 AM, Mel Gorman wrote: > From: Tim Chen <tim.c.chen@linux.intel.com> > > We remove the call to grab_super_passive in call to super_cache_count. > This becomes a scalability bottleneck as multiple threads are trying to do > memory reclamation, e.g. when we are doing large amount of file read and > page cache is under pressure. The cached objects quickly got reclaimed > down to 0 and we are aborting the cache_scan() reclaim. But counting > creates a log jam acquiring the sb_lock.
> Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> > Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
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