[PATCH v3 15/35] mm: percpu: increase PERCPU_MODULE_RESERVE to accommodate allocation tags
From: Suren Baghdasaryan <surenb@google.com>
Date: 2024-02-12 21:40:06
Also in:
cgroups, linux-arch, linux-doc, linux-fsdevel, linux-iommu, linux-mm, lkml
Subsystem:
per-cpu memory allocator, the rest · Maintainers:
Dennis Zhou, Tejun Heo, Christoph Lameter, Linus Torvalds
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 <surenb@google.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> --- 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
--
2.43.0.687.g38aa6559b0-goog