Subject: + revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch added to -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,hannes@xxxxxxxxxxx,mhocko@xxxxxxx,torvalds@xxxxxxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 17 Sep 2013 13:58:02 -0700
The patch titled
Subject: revert "memcg, vmscan: do not attempt soft limit reclaim if it would not scan anything"
has been added to the -mm tree. Its filename is
revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: revert "memcg, vmscan: do not attempt soft limit reclaim if it would not scan anything"
Revert
: commit e839b6a1c8d0895803bcbd587595a54f4221a625
: Author: Michal Hocko <mhocko@xxxxxxx>
: AuthorDate: Thu Sep 12 15:13:30 2013 -0700
: Commit: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
: CommitDate: Thu Sep 12 15:38:01 2013 -0700
:
: memcg, vmscan: do not attempt soft limit reclaim if it would not scan anything
I merged this prematurely - Michal and Johannes still disagree about the
overall design direction and the future remains unclear.
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 6 +-----
mm/vmscan.c | 4 +---
2 files changed, 2 insertions(+), 8 deletions(-)
diff -puN mm/memcontrol.c~revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything mm/memcontrol.c
--- a/mm/memcontrol.c~revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything
+++ a/mm/memcontrol.c
@@ -1872,11 +1872,7 @@ enum mem_cgroup_filter_t
mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
struct mem_cgroup *root)
{
- struct mem_cgroup *parent;
-
- if (!memcg)
- memcg = root_mem_cgroup;
- parent = memcg;
+ struct mem_cgroup *parent = memcg;
if (res_counter_soft_limit_excess(&memcg->res))
return VISIT;
diff -puN mm/vmscan.c~revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything mm/vmscan.c
--- a/mm/vmscan.c~revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything
+++ a/mm/vmscan.c
@@ -142,9 +142,7 @@ static bool global_reclaim(struct scan_c
static bool mem_cgroup_should_soft_reclaim(struct scan_control *sc)
{
- struct mem_cgroup *root = sc->target_mem_cgroup;
- return !mem_cgroup_disabled() &&
- mem_cgroup_soft_reclaim_eligible(root, root) != SKIP_TREE;
+ return !mem_cgroup_disabled();
}
#else
static bool global_reclaim(struct scan_control *sc)
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
i-need-old-gcc.patch
revert-memcg-vmscan-do-not-fall-into-reclaim-all-pass-too-quickly.patch
revert-memcg-track-all-children-over-limit-in-the-root.patch
revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch
revert-memcg-track-children-in-soft-limit-excess-to-improve-soft-limit.patch
revert-memcg-enhance-memcg-iterator-to-support-predicates.patch
revert-vmscan-memcg-do-softlimit-reclaim-also-for-targeted-reclaim.patch
revert-memcg-get-rid-of-soft-limit-tree-infrastructure.patch
revert-memcg-vmscan-integrate-soft-reclaim-tighter-with-zone-shrinking-code.patch
fs-binfmt_elfc-prevent-a-coredump-with-a-large-vm_map_count-from-oopsing-fix.patch
drivers-staging-lustre-lustre-ptlrpc-sec_bulkc-rename-ptrs_per_page.patch
makefile-enable-werror=implicit-int-and-werror=strict-prototypes-by-default.patch
mm.patch
mm-vmalloc-dont-warn-about-vmalloc-allocation-failure-twice-fix.patch
binfmt_elfc-use-get_random_int-to-fix-entropy-depleting.patch
fat-additions-to-support-fat_fallocate-fix.patch
fat-additions-to-support-fat_fallocate-fix-fix.patch
linux-next.patch
mm-drop-actor-argument-of-do_generic_file_read-fix.patch
debugging-keep-track-of-page-owners-fix-2-fix.patch
debugging-keep-track-of-page-owners-fix-2-fix-fix-fix.patch
journal_add_journal_head-debug.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
revert-memcg-vmscan-do-not-fall-into-reclaim-all-pass-too-quickly.patch
revert-memcg-track-all-children-over-limit-in-the-root.patch
revert-memcg-vmscan-do-not-attempt-soft-limit-reclaim-if-it-would-not-scan-anything.patch
revert-memcg-track-children-in-soft-limit-excess-to-improve-soft-limit.patch
revert-memcg-enhance-memcg-iterator-to-support-predicates.patch
revert-vmscan-memcg-do-softlimit-reclaim-also-for-targeted-reclaim.patch
revert-memcg-get-rid-of-soft-limit-tree-infrastructure.patch
revert-memcg-vmscan-integrate-soft-reclaim-tighter-with-zone-shrinking-code.patch
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