[PATCH 1/6] mm: Add vmalloc_huge_node()

Peter Zijlstra
2024-10-25T09:41:09Z

To enable node specific hash-tables.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/vmalloc.h | 3 +++
mm/vmalloc.c | 7 +++++++
2 files changed, 10 insertions(+)

--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -177,6 +177,9 @@ void *__vmalloc_node_noprof(unsigned lon
void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
#define vmalloc_huge(...) alloc_hooks(vmalloc_huge_noprof(__VA_ARGS__))

+void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int node) __alloc_size(1);
+#define vmalloc_huge_node(...) alloc_hooks(vmalloc_huge_node_noprof(__VA_ARGS__))
+
extern void *__vmalloc_array_noprof(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
#define __vmalloc_array(...) alloc_hooks(__vmalloc_array_noprof(__VA_ARGS__))

--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3948,6 +3948,13 @@ void *vmalloc_huge_noprof(unsigned long
}
EXPORT_SYMBOL_GPL(vmalloc_huge_noprof);

+void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int node)
+{
+ return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+ gfp_mask, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP,
+ node, __builtin_return_address(0));
+}
+
/**
* vzalloc - allocate virtually contiguous memory with zero fill
* @size: allocation size