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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-21 19:36:50 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-04-26 06:55:56 +0300 |
| commit | 60fa4a9e232317217aaf8bb956079f6b8c79fb28 (patch) | |
| tree | e05b9c4157bff2572993d907abb3392dd51aff85 /mm/percpu-internal.h | |
| parent | 8f30d2660a38bef82af039065bd383fa73b35e39 (diff) | |
| download | linux-60fa4a9e232317217aaf8bb956079f6b8c79fb28.tar.xz | |
mm: percpu: add codetag reference into pcpuobj_ext
To store codetag for every per-cpu allocation, a codetag reference is
embedded into pcpuobj_ext when CONFIG_MEM_ALLOC_PROFILING=y. Hooks to use
the newly introduced codetag are added.
Link: https://lkml.kernel.org/r/20240321163705.3067592-29-surenb@google.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Kees Cook <keescook@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: "Björn Roy Baron" <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/percpu-internal.h')
| -rw-r--r-- | mm/percpu-internal.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h index e62d582f4bf3..7e42f0ca3b7b 100644 --- a/mm/percpu-internal.h +++ b/mm/percpu-internal.h @@ -36,9 +36,12 @@ struct pcpuobj_ext { #ifdef CONFIG_MEMCG_KMEM struct obj_cgroup *cgroup; #endif +#ifdef CONFIG_MEM_ALLOC_PROFILING + union codetag_ref tag; +#endif }; -#ifdef CONFIG_MEMCG_KMEM +#if defined(CONFIG_MEMCG_KMEM) || defined(CONFIG_MEM_ALLOC_PROFILING) #define NEED_PCPUOBJ_EXT #endif @@ -86,7 +89,11 @@ struct pcpu_chunk { static inline bool need_pcpuobj_ext(void) { - return !mem_cgroup_kmem_disabled(); + if (IS_ENABLED(CONFIG_MEM_ALLOC_PROFILING)) + return true; + if (!mem_cgroup_kmem_disabled()) + return true; + return false; } extern spinlock_t pcpu_lock; |