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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2018-08-17 15:49:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 16:20:32 -0700
commit87a5ffc163966b2eb675c9c863c0caccab3183f6 (patch)
treef6f58cabced305d5cfac56d31b78d118aae0f008 /mm
parent14fef28414c365a979311821bbf1018a8290cc0f (diff)
downloadlinux-stericsson-87a5ffc163966b2eb675c9c863c0caccab3183f6.tar.gz
mm/list_lru.c: use list_lru_walk_one() in list_lru_walk_node()
Patch series "mm/list_lru: Add list_lru_shrink_walk_irq() and a user". This series removes the local_irq_disable() around list_lru_shrink_walk() (as used by mm/workingset) by adding list_lru_shrink_walk_irq(). Vladimir Davydov preferred this over `irq' argument which I added to struct list_lru. The initial post (of this series) received a Reviewed-by tag by Vladimir Davydov which I added to each patch of the series. The series applies on top of akpm's tree which has Kirill's shrink_slab series and does not clash with it (akpm asked me to wait a week or so and repost it then). I tested the code paths by triggering the OOM-killer via memory over commit and lockdep did not complain (nor did I see any warnings). This patch (of 4): list_lru_walk_node() invokes __list_lru_walk_one() with -1 as the memcg_idx parameter. The same can be achieved by list_lru_walk_one() and passing NULL as memcg argument which then gets converted into -1. This is a preparation step when the spin_lock() function is lifted to the caller of __list_lru_walk_one(). Invoke list_lru_walk_one() instead __list_lru_walk_one() when possible. Link: http://lkml.kernel.org/r/20180716111921.5365-2-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/list_lru.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/list_lru.c b/mm/list_lru.c
index c9bdde9c03d1..522b98ca76b3 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -287,8 +287,8 @@ unsigned long list_lru_walk_node(struct list_lru *lru, int nid,
long isolated = 0;
int memcg_idx;
- isolated += __list_lru_walk_one(lru, nid, -1, isolate, cb_arg,
- nr_to_walk);
+ isolated += list_lru_walk_one(lru, nid, NULL, isolate, cb_arg,
+ nr_to_walk);
if (*nr_to_walk > 0 && list_lru_memcg_aware(lru)) {
for_each_memcg_cache_index(memcg_idx) {
isolated += __list_lru_walk_one(lru, nid, memcg_idx,