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AJvYcCVY4flD3uCAlQEoku2Jiq1Urz3AUX+09g8tbk1pc1CblKXoS+SEu4y4ZvbxIIwkm6d8lre+T0RfugA6BSLL03/1KJvmY/IPqiZH X-Gm-Message-State: AOJu0YxEQrtaGi1CCiS2q2JcI3rQhTAv/kqEeB1mgJcGvD/2Okq74Rvw NCJyaJi4DIfkYCjO4AVbgr/5pJ+Fuz1qIk9BwlFuBvBWin9WHdT69BVG3I1oL6ejkhU15UtemFQ Pfg== X-Google-Smtp-Source: AGHT+IG2dizM99WzNXjXCm4NRVCQCOVTKSh+Pv+zsrsy5Io1Fqept1ZOsQ0OERnmDAPF2nVohKm6aRgWd5Q= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:953b:9a4e:1e10:3f07]) (user=surenb job=sendgmr) by 2002:a05:690c:fce:b0:608:7c19:c009 with SMTP id dg14-20020a05690c0fce00b006087c19c009mr105006ywb.0.1708544491160; Wed, 21 Feb 2024 11:41:31 -0800 (PST) Date: Wed, 21 Feb 2024 11:40:29 -0800 In-Reply-To: <20240221194052.927623-1-surenb@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240221194052.927623-1-surenb@google.com> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog Message-ID: <20240221194052.927623-17-surenb@google.com> Subject: [PATCH v4 16/36] mm: percpu: increase PERCPU_MODULE_RESERVE to accommodate allocation tags From: Suren Baghdasaryan To: akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, penguin-kernel@i-love.sakura.ne.jp, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, vvvvvv@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, surenb@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org Content-Type: text/plain; charset="UTF-8" As each allocation tag generates a per-cpu variable, more space is required to store them. Increase PERCPU_MODULE_RESERVE to provide enough area. A better long-term solution would be to allocate this memory dynamically. Signed-off-by: Suren Baghdasaryan Signed-off-by: Kent Overstreet Cc: Peter Zijlstra Cc: Tejun Heo --- include/linux/percpu.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 8c677f185901..62b5eb45bd89 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -14,7 +14,11 @@ /* enough to cover all DEFINE_PER_CPUs in modules */ #ifdef CONFIG_MODULES +#ifdef CONFIG_MEM_ALLOC_PROFILING +#define PERCPU_MODULE_RESERVE (8 << 12) +#else #define PERCPU_MODULE_RESERVE (8 << 10) +#endif #else #define PERCPU_MODULE_RESERVE 0 #endif -- 2.44.0.rc0.258.g7320e95886-goog