The patch titled
statistics: fix sorted list
has been added to the -mm tree. Its filename is
statistics-infrastructure-statistics-fix-sorted-list.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
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 files 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
@@ -1113,6 +1113,7 @@ static int statistic_add_sparse_new(stru
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
sunrpc-cleanup-use-seq_release_private-where-appropriate.patch
kallsyms-cleanup-use-seq_release_private-where-appropriate.patch
proc-cleanup-use-seq_release_private-where-appropriate.patch
md-cleanup-use-seq_release_private-where-appropriate.patch
statistics-infrastructure-prerequisite-list.patch
statistics-infrastructure-prerequisite-parser.patch
statistics-infrastructure-prerequisite-parser-fix.patch
add-for_each_substring-and-match_substring.patch
statistics-infrastructure-prerequisite-timestamp.patch
statistics-infrastructure-make-printk_clock-a-generic-kernel-wide-nsec-resolution.patch
statistics-infrastructure-documentation.patch
statistics-infrastructure.patch
statistics-infrastructure-add-for_each_substring-and-match_substring-exploitation.patch
statistics-infrastructure-fix-parsing-of-statistics-type-attribute.patch
statistics-infrastructure-simplify-statistics-debugfs-write-function.patch
statistics-infrastructure-simplify-statistics-debugfs-read-functions.patch
statistics-infrastructure-fix-string-termination.patch
statistics-infrastructure-small-cleanup-in-debugfs-write-function.patch
statistics-infrastructure-fix-cpu-hot-unplug-related-memory-leak.patch
statistics-infrastructure-statistics-fix-sorted-list.patch
statistics-infrastructure-timer_stats-slimmed-down-statistics-prereq-cleanup.patch
statistics-infrastructure-timer_stats-slimmed-down-statistics-prereq-labels.patch
statistics-infrastructure-timer_stats-slimmed-down-statistics-prereq-keys.patch
statistics-infrastructure-exploitation-zfcp.patch
timer_stats-slimmed-down-using-statistics-infrastucture.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
