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AJvYcCWX2VUuIBu00ihrB/PRLgB8abk6WyhCqf9MgP2vSY1SGw3w9jtxyefdNySkGTNwkCw5TYzBUin75SiMPCqazywVJwY= X-Gm-Message-State: AOJu0Yx5yzMPP0GZTwuaizbGGRS5SH6+ZDgrMebJ2dXILTknpiEG2uYe /7oGspK7O+NDkkZ1t1rFEfvM/vSfjpkuDAIGClzwwQXZbyNiTVLb0PYAql0ZYuMiNwl/GpxYnoW 39g== X-Google-Smtp-Source: AGHT+IHUFqe0R6lIIi9NA0qHx8ZRtyarym315AvQcyj6s2JvP2F2gSCMg1vFWmN120oFVZKD/Z/VCxMwQvI= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:953b:9a4e:1e10:3f07]) (user=surenb job=sendgmr) by 2002:a0d:e611:0:b0:607:9268:6665 with SMTP id p17-20020a0de611000000b0060792686665mr4677003ywe.10.1708544502298; Wed, 21 Feb 2024 11:41:42 -0800 (PST) Date: Wed, 21 Feb 2024 11:40:34 -0800 In-Reply-To: <20240221194052.927623-1-surenb@google.com> 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: <20240221194052.927623-22-surenb@google.com> Subject: [PATCH v4 21/36] lib: add codetag reference into slabobj_ext 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 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: B3F6820019 X-Stat-Signature: qzky1zfhioap1cj1jcxo3sy4tyxspqmz X-Rspam-User: X-HE-Tag: 1708544503-502128 X-HE-Meta: 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 BzyrgD6L 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: To store code tag for every slab object, a codetag reference is embedded into slabobj_ext when CONFIG_MEM_ALLOC_PROFILING=y. Signed-off-by: Suren Baghdasaryan Co-developed-by: Kent Overstreet Signed-off-by: Kent Overstreet Reviewed-by: Vlastimil Babka --- include/linux/memcontrol.h | 5 +++++ lib/Kconfig.debug | 1 + 2 files changed, 6 insertions(+) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index f3584e98b640..2b010316016c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1653,7 +1653,12 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, * if MEMCG_DATA_OBJEXTS is set. */ struct slabobj_ext { +#ifdef CONFIG_MEMCG_KMEM struct obj_cgroup *objcg; +#endif +#ifdef CONFIG_MEM_ALLOC_PROFILING + union codetag_ref ref; +#endif } __aligned(8); static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 7bbdb0ddb011..9ecfcdb54417 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -979,6 +979,7 @@ config MEM_ALLOC_PROFILING depends on !DEBUG_FORCE_WEAK_PER_CPU select CODE_TAGGING select PAGE_EXTENSION + select SLAB_OBJ_EXT help Track allocation source code and record total allocation size initiated at that code location. The mechanism can be used to track