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bp@alien8.de, brauner@kernel.org, bsegall@google.com, corbet@lwn.net, dave.hansen@linux.intel.com, david@redhat.com, dietmar.eggemann@arm.com, ebiederm@xmission.com, hpa@zytor.com, jakub.wartak@mailbox.org, jannh@google.com, juri.lelli@redhat.com, khalid@kernel.org, liam.howlett@oracle.com, linyongting@bytedance.com, lorenzo.stoakes@oracle.com, luto@kernel.org, markhemm@googlemail.com, maz@kernel.org, mhiramat@kernel.org, mgorman@suse.de, mhocko@suse.com, mingo@redhat.com, muchun.song@linux.dev, neilb@suse.de, osalvador@suse.de, pcc@google.com, peterz@infradead.org, pfalcato@suse.de, rostedt@goodmis.org, rppt@kernel.org, shakeel.butt@linux.dev, surenb@google.com, tglx@linutronix.de, vasily.averin@linux.dev, vbabka@suse.cz, vincent.guittot@linaro.org, viro@zeniv.linux.org.uk, vschneid@redhat.com, willy@infradead.org, x86@kernel.org, xhao@linux.alibaba.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH v3 22/22] mm/mshare: charge 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Signed-off-by: Anthony Yznaga --- mm/memory.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/mm/memory.c b/mm/memory.c index 177eb53475cb..127db0b9932c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -6468,9 +6468,17 @@ vm_fault_t handle_mm_fault(struct vm_area_struct *vma, unsigned long address, struct mm_struct *mm = vma->vm_mm; vm_fault_t ret; bool is_droppable; + bool is_mshare = mm_flags_test(MMF_MSHARE, mm); + struct mem_cgroup *mshare_memcg; + struct mem_cgroup *memcg; __set_current_state(TASK_RUNNING); + if (unlikely(is_mshare)) { + mshare_memcg = get_mem_cgroup_from_mm(vma->vm_mm); + memcg = set_active_memcg(mshare_memcg); + } + ret = sanitize_fault_flags(vma, &flags); if (ret) goto out; @@ -6530,6 +6538,11 @@ vm_fault_t handle_mm_fault(struct vm_area_struct *vma, unsigned long address, out: mm_account_fault(mm, regs, address, flags, ret); + if (unlikely(is_mshare)) { + set_active_memcg(memcg); + mem_cgroup_put(mshare_memcg); + } + return ret; } EXPORT_SYMBOL_GPL(handle_mm_fault); -- 2.47.1