The patch titled
Subject: mm/memcontrol.c: add mem_cgroup_from_task() as a local helper
has been added to the -mm tree. Its filename is
mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm/memcontrol.c: add mem_cgroup_from_task() as a local helper
Factor out some commonly-occurring code.
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff -puN mm/memcontrol.c~mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper
+++ a/mm/memcontrol.c
@@ -664,6 +664,11 @@ static void memcg_check_events(struct me
}
}
+static inline struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p)
+{
+ return mem_cgroup_from_css(task_css(p, memory_cgrp_id));
+}
+
struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm)
{
struct mem_cgroup *memcg = NULL;
@@ -1011,7 +1016,7 @@ bool task_in_mem_cgroup(struct task_stru
* killed to prevent needlessly killing additional tasks.
*/
rcu_read_lock();
- task_memcg = mem_cgroup_from_css(task_css(task, memory_cgrp_id));
+ task_memcg = mem_cgroup_from_task(task);
css_get(&task_memcg->css);
rcu_read_unlock();
}
@@ -4829,7 +4834,7 @@ static int mem_cgroup_can_attach(struct
if (!move_flags)
return 0;
- from = mem_cgroup_from_css(task_css(p, memory_cgrp_id));
+ from = mem_cgroup_from_task(p);
VM_BUG_ON(from == memcg);
@@ -5887,7 +5892,7 @@ void mem_cgroup_sk_alloc(struct sock *sk
}
rcu_read_lock();
- memcg = mem_cgroup_from_css(task_css(current, memory_cgrp_id));
+ memcg = mem_cgroup_from_task(current);
if (memcg == root_mem_cgroup)
goto out;
if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && !memcg->tcpmem_active)
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
i-need-old-gcc.patch
z3fold-fix-reclaim-lock-ups-checkpatch-fixes.patch
arm-arch-arm-include-asm-pageh-needs-personalityh.patch
ocfs2-without-quota-support-try-to-avoid-calling-quota-recovery-checkpatch-fixes.patch
mm.patch
zram-introduce-zram-memory-tracking-update-fix.patch
mm-check-for-sigkill-inside-dup_mmap-loop-fix.patch
mm-shmem-make-statst_blksize-return-huge-page-size-if-thp-is-on-fix.patch
mm-memcontrolc-add-mem_cgroup_from_task-as-a-local-helper.patch
list_lru-prefetch-neighboring-list-entries-before-acquiring-lock-fix.patch
mm-oom-cgroup-aware-oom-killer-fix.patch
mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix-2-fix.patch
mm-oom-cgroup-aware-oom-killer-fix-fix.patch
proc-simpler-iterations-for-proc-cmdline-fix.patch
ida-remove-simple_ida_lock-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
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