The patch titled
statistics: fix sorted list
has been removed from the -mm tree. Its filename was
statistics-infrastructure-statistics-fix-sorted-list.patch
This patch was dropped because it isn't in the present -mm lineup
------------------------------------------------------
Subject: statistics: fix sorted list
From: Martin Peschke <mp3@xxxxxxxxxx>
The list of statistics entries maintained by type 'sparse' might have shown
unsorted entries with regard to the number of reported hits. The reason
was that new entries were always added at the tail of the list regardless
of the number of hits they came with. Unsorted lists might suffer a
performance loss.
Fix is to sort the list by hits after entry insertion, i.e. moving entries
added at the tail up the chain, which should not be required very often
(usually just when merging per-cpu lists).
Signed-off-by: Martin Peschke <mp3@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/statistic.c | 1 +
1 file changed, 1 insertion(+)
diff -puN lib/statistic.c~statistics-infrastructure-statistics-fix-sorted-list lib/statistic.c
--- a/lib/statistic.c~statistics-infrastructure-statistics-fix-sorted-list
+++ a/lib/statistic.c
@@ -1138,6 +1138,7 @@ static int statistic_new_sparse(struct s
entry->hits = incr;
slist->entries++;
list_add_tail(&entry->list, &slist->entry_lh);
+ statistic_sort_sparse(&slist->entry_lh, entry);
return 0;
}
_
Patches currently in -mm which might be from mp3@xxxxxxxxxx are
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