* [PATCH] Reduce sched latency in shrink_dcache_sb()
@ 2006-03-09 17:26 Kirill Korotaev
0 siblings, 0 replies; only message in thread
From: Kirill Korotaev @ 2006-03-09 17:26 UTC (permalink / raw)
To: Andrew Morton, Linus Torvalds, Linux Kernel Mailing List
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This patch reduces scheduling latency in shrink_dcache_sb()
noticed during remounting of big partitions with many cached dentries.
The same latency fix was applied to select_parent() long ago.
Signed-Off-By: Denis Lunev <den@sw.ru>
Signed-Off-By: Pavel Emelianov <xemul@sw.ru>
Signed-Off-By: Kirill Korotaev <dev@openvz.org>
Thanks,
Kirill
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--- ./fs/dcache.c.lat 2006-03-09 16:03:44.000000000 +0300
+++ ./fs/dcache.c 2006-03-09 20:19:41.000000000 +0300
@@ -491,6 +491,7 @@ repeat:
continue;
}
prune_one_dentry(dentry);
+ cond_resched_lock(&dcache_lock);
goto repeat;
}
spin_unlock(&dcache_lock);
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2006-03-09 17:26 [PATCH] Reduce sched latency in shrink_dcache_sb() Kirill Korotaev
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