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| author | Suren Baghdasaryan <surenb@google.com> | 2024-03-21 09:36:38 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-04-25 20:55:53 -0700 |
| commit | ccdabb1d7f7a09810495ac57c0154a9913791dd2 (patch) | |
| tree | b44521c697f72b8b00c5ef5aed87becb4dd8035f /include/linux/percpu.h | |
| parent | 8d469d0bee74d3f2d02f0b232933a3f084d9cbf7 (diff) | |
| download | lwn-ccdabb1d7f7a09810495ac57c0154a9913791dd2.tar.gz lwn-ccdabb1d7f7a09810495ac57c0154a9913791dd2.zip | |
mm: percpu: increase PERCPU_MODULE_RESERVE to accommodate allocation tags
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.
[surenb@google.com: increase PERCPU_MODULE_RESERVE to accommodate allocation tags]
Link: https://lkml.kernel.org/r/20240406214044.1114406-1-surenb@google.com
Link: https://lkml.kernel.org/r/20240321163705.3067592-17-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Tested-by: Kees Cook <keescook@chromium.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.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: Vlastimil Babka <vbabka@suse.cz>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 8c677f185901..9dfa7b526e70 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 << 13) +#else #define PERCPU_MODULE_RESERVE (8 << 10) +#endif #else #define PERCPU_MODULE_RESERVE 0 #endif |