This is a note to let you know that I've just added the patch titled
Revert "revert "mm: vmscan: do not swap anon pages just because free+file is low""
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-revert-mm-vmscan-do-not-swap-anon-pages-just.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fde350e9497d7fb5a222dc02c4364ac6d998c64d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 7 Jun 2014 19:11:23 -0700
Subject: Revert "revert "mm: vmscan: do not swap anon pages just because free+file is low""
This reverts commit 623762517e2370be3b3f95f4fe08d6c063a49b06.
Ben rightly points out that commit 0bf1457f0cfc, which is what this
original commit was reverting, never ended up in 3.14-stable, but was
only for 3.15.
So revert this patch as we now have the same check twice in a row, which
is pretty pointless. Although the comments were "prettier"...
Cc: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Rafael Aquini <aquini@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 18 ------------------
1 file changed, 18 deletions(-)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1916,24 +1916,6 @@ static void get_scan_count(struct lruvec
}
/*
- * Prevent the reclaimer from falling into the cache trap: as
- * cache pages start out inactive, every cache fault will tip
- * the scan balance towards the file LRU. And as the file LRU
- * shrinks, so does the window for rotation from references.
- * This means we have a runaway feedback loop where a tiny
- * thrashing file LRU becomes infinitely more attractive than
- * anon pages. Try to detect this based on file LRU size.
- */
- if (global_reclaim(sc)) {
- unsigned long free = zone_page_state(zone, NR_FREE_PAGES);
-
- if (unlikely(file + free <= high_wmark_pages(zone))) {
- scan_balance = SCAN_ANON;
- goto out;
- }
- }
-
- /*
* There is enough inactive page cache, do not reclaim
* anything from the anonymous working set right now.
*/
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-3.14/sched-deadline-fix-memory-leak.patch
queue-3.14/arm-omap5-hwmod_data-correct-idlemode-for-mcpdm.patch
queue-3.14/arm-omap4-fix-the-boot-regression-with-cpu_idle-enabled.patch
queue-3.14/arm-8051-1-put_user-fix-possible-data-corruption-in-put_user.patch
queue-3.14/cpufreq-cpu0-drop-wrong-devm-usage.patch
queue-3.14/drm-gf119-disp-fix-nasty-bug-which-can-clobber-sor0-s-clock-setup.patch
queue-3.14/sched-use-cpupri_nr_priorities-instead-of-max_rt_prio-in-cpupri-check.patch
queue-3.14/mm-memory-failure.c-fix-memory-leak-by-race-between-poison-and-unpoison.patch
queue-3.14/sched-sanitize-irq-accounting-madness.patch
queue-3.14/drm-radeon-also-try-gart-for-cpu-accessed-buffers.patch
queue-3.14/mips-fix-typo-when-reporting-cache-and-ftlb-errors-for-imgtec-cores.patch
queue-3.14/perf-prevent-false-warning-in-perf_swevent_add.patch
queue-3.14/arm-omap2-nand-fix-nand-on-omap2-and-omap3-boards.patch
queue-3.14/drm-radeon-pm-don-t-allow-debugfs-sysfs-access-when-px-card-is-off-v2.patch
queue-3.14/documentation-fix-docbooks-...-building.patch
queue-3.14/drm-radeon-handle-non-vga-class-pci-devices-with-atrm.patch
queue-3.14/firewire-revert-to-4-gb-rdma-fix-protocols-using-memory-space.patch
queue-3.14/drm-radeon-fix-register-typo-on-si.patch
queue-3.14/dm-thin-add-no_space_timeout-dm-thin-pool-module-param.patch
queue-3.14/hwmon-ntc_thermistor-fix-dependencies.patch
queue-3.14/arm-8064-1-fix-v7-m-signal-return.patch
queue-3.14/hwmon-ntc_thermistor-fix-of-device-id-mapping.patch
queue-3.14/cpufreq-remove-race-while-accessing-cur_policy.patch
queue-3.14/perf-fix-race-in-removing-an-event.patch
queue-3.14/revert-revert-mm-vmscan-do-not-swap-anon-pages-just.patch
queue-3.14/arm-omap3-clock-back-propagate-rate-change-from-cam_mclk-to-dpll4_m5-on-all-omap3-platforms.patch
queue-3.14/arm-imx-fix-error-handling-in-ipu-device-registration.patch
queue-3.14/scsi-scsi_transport_sas-move-bsg-destructor-into-sas_rphy_remove.patch
queue-3.14/dm-cache-always-split-discards-on-cache-block-boundaries.patch
queue-3.14/perf-limit-perf_event_attr-sample_period-to-63-bits.patch
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