Subject: + mm-compactionc-isolate_freepages_block-small-tuneup.patch added to -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,b.zolnierkie@xxxxxxxxxxx,iamjoonsoo.kim@xxxxxxx,lauraa@xxxxxxxxxxxxxx,mgorman@xxxxxxx,mina86@xxxxxxxxxx,minchan@xxxxxxxxxx,vbabka@xxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 06 Mar 2014 16:38:40 -0800
The patch titled
Subject: mm/compaction.c:isolate_freepages_block(): small tuneup
has been added to the -mm tree. Its filename is
mm-compactionc-isolate_freepages_block-small-tuneup.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-compactionc-isolate_freepages_block-small-tuneup.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-compactionc-isolate_freepages_block-small-tuneup.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm/compaction.c:isolate_freepages_block(): small tuneup
- remove unneeded `continue'
- expand the scope if the `if (isloated)' test, to optimise a code path
which is rarely actualyl taken.
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Laura Abbott <lauraa@xxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff -puN mm/compaction.c~mm-compactionc-isolate_freepages_block-small-tuneup mm/compaction.c
--- a/mm/compaction.c~mm-compactionc-isolate_freepages_block-small-tuneup
+++ a/mm/compaction.c
@@ -293,14 +293,14 @@ static unsigned long isolate_freepages_b
/* Found a free page, break it into order-0 pages */
isolated = split_free_page(page);
- total_isolated += isolated;
- for (i = 0; i < isolated; i++) {
- list_add(&page->lru, freelist);
- page++;
- }
-
- /* If a page was split, advance to the end of it */
if (isolated) {
+ total_isolated += isolated;
+ for (i = 0; i < isolated; i++) {
+ list_add(&page->lru, freelist);
+ page++;
+ }
+
+ /* If a page was split, advance to the end of it */
blockpfn += isolated - 1;
cursor += isolated - 1;
continue;
@@ -309,9 +309,6 @@ static unsigned long isolate_freepages_b
isolate_fail:
if (strict)
break;
- else
- continue;
-
}
trace_mm_compaction_isolate_freepages(nr_scanned, total_isolated);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
i-need-old-gcc.patch
maintainers-akpm-maintenance.patch
revert-kallsyms-fix-absolute-addresses-for-kaslr.patch
input-route-kbd-leds-through-the-generic-leds-layer.patch
ocfs2-add-dlm_recover_callback_support-in-sysfs-fix.patch
ocfs2-flock-drop-cross-node-lock-when-failed-locally-checkpatch-fixes.patch
ocfs2-do-not-return-dlm_migrate_response_mastery_ref-to-avoid-endlessloop-during-umount-checkpatch-fixes.patch
mm.patch
mm-hugetlb-improve-page-fault-scalability-fix.patch
mm-vmstat-fix-up-zone-state-accounting-fix.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix.patch
mm-process_vm_accessc-mark-function-as-static-fix.patch
mm-hugetlbfs-fix-rmapping-for-anonymous-hugepages-with-page_pgoff-v3-fix.patch
pagewalk-update-page-table-walker-core-fix-end-address-calculation-in-walk_page_range-fix.patch
pagewalk-remove-argument-hmask-from-hugetlb_entry-fix-fix.patch
mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
drop_caches-add-some-documentation-and-info-message.patch
mmnuma-reorganize-change_pmd_range-fix.patch
drivers-lguest-page_tablesc-rename-do_set_pte.patch
mm-add-debugfs-tunable-for-fault_around_order-checkpatch-fixes.patch
mm-per-thread-vma-caching.patch
mm-per-thread-vma-caching-fix-3.patch
mm-use-macros-from-compilerh-instead-of-__attribute__-fix.patch
mm-compactionc-isolate_freepages_block-small-tuneup.patch
zram-use-zcomp-compressing-backends-fix.patch
zram-return-error-valued-pointer-from-zcomp_create-fix.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
include-linux-syscallsh-add-sys32_quotactl-prototype-fix.patch
sys_sysfs-add-config_sysfs_syscall-fix.patch
kernel-groupsc-remove-return-value-of-set_groups-fix.patch
ncpfs-convert-dprintk-ddprintk-to-ncp_dbg-fix.patch
ncpfs-convert-dprintk-ddprintk-to-ncp_dbg-fix-fix.patch
hfsplus-fix-concurrent-acess-of-alloc_blocks-fix.patch
hfsplus-fix-concurrent-acess-of-alloc_blocks-fix-fix.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-fix.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-checkpatch-fixes.patch
include-linux-crash_dumph-add-vmcore_cleanup-prototype-fix.patch
kernel-panicc-display-reason-at-end-pr_emerg-fix.patch
fault-injection-set-bounds-on-what-proc-self-make-it-fail-accepts-fix.patch
initramfs-debug-detected-compression-method-fix.patch
linux-next.patch
drivers-gpio-gpio-zevioc-fix-build.patch
debugging-keep-track-of-page-owners.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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