The patch titled
res_counter: limit change support ebusy
has been removed from the -mm tree. Its filename was
res_counter-limit-change-support-ebusy.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: res_counter: limit change support ebusy
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Add an interface to set limit. This is necessary to memory resource
controller because it shrinks usage at set limit.
Other controllers may not need this interface to shrink usage because
shrinking is not necessary or impossible.
Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Acked-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Paul Menage <menage@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/res_counter.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff -puN include/linux/res_counter.h~res_counter-limit-change-support-ebusy include/linux/res_counter.h
--- a/include/linux/res_counter.h~res_counter-limit-change-support-ebusy
+++ a/include/linux/res_counter.h
@@ -158,4 +158,20 @@ static inline void res_counter_reset_fai
cnt->failcnt = 0;
spin_unlock_irqrestore(&cnt->lock, flags);
}
+
+static inline int res_counter_set_limit(struct res_counter *cnt,
+ unsigned long long limit)
+{
+ unsigned long flags;
+ int ret = -EBUSY;
+
+ spin_lock_irqsave(&cnt->lock, flags);
+ if (cnt->usage < limit) {
+ cnt->limit = limit;
+ ret = 0;
+ }
+ spin_unlock_irqrestore(&cnt->lock, flags);
+ return ret;
+}
+
#endif
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
origin.patch
memrlimit-add-memrlimit-controller-documentation.patch
memrlimit-setup-the-memrlimit-controller.patch
memrlimit-cgroup-mm-owner-callback-changes-to-add-task-info.patch
memrlimit-add-memrlimit-controller-accounting-and-control.patch
memrlimit-improve-error-handling.patch
memrlimit-improve-error-handling-update.patch
memrlimit-handle-attach_task-failure-add-can_attach-callback.patch
mm-speculative-page-references-fix-migration_entry_wait-for-speculative-page-cache.patch
define-page_file_cache-function-fix-splitlru-shmem_getpage-setpageswapbacked-sooner.patch
vmscan-split-lru-lists-into-anon-file-sets-splitlru-memcg-swapbacked-pages-active.patch
vmscan-second-chance-replacement-for-anonymous-pages-fix.patch
vmscan-second-chance-replacement-for-anonymous-pages-memcg-lru-scan-fix.patch
unevictable-lru-infrastructure-putback_lru_page-unevictable-page-handling-rework.patch
mlock-mlocked-pages-are-unevictable-fix-truncate-race-and-sevaral-comments.patch
fix-double-unlock_page-in-2626-rc5-mm3-kernel-bug-at-mm-filemapc-575.patch
restore-patch-failure-of-vmstat-unevictable-and-mlocked-pages-vm-eventspatch.patch
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