[PATCH v3 11/15] mm: Add vmalloc_huge_node()

peterz
2023-09-21T18:11:45Z

[-- Attachment #1: peterz-vmalloc_huge_node.patch --]
[-- Type: text/plain, Size: 1556 bytes --]

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 | 1 +
mm/vmalloc.c | 7 +++++++
2 files changed, 8 insertions(+)

Index: linux-2.6/include/linux/vmalloc.h
===================================================================
--- linux-2.6.orig/include/linux/vmalloc.h
+++ linux-2.6/include/linux/vmalloc.h
@@ -152,6 +152,7 @@ extern void *__vmalloc_node_range(unsign
void *__vmalloc_node(unsigned long size, unsigned long align, gfp_t gfp_mask,
int node, const void *caller) __alloc_size(1);
void *vmalloc_huge(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
+void *vmalloc_huge_node(unsigned long size, gfp_t gfp_mask, int node) __alloc_size(1);

extern void *__vmalloc_array(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
extern void *vmalloc_array(size_t n, size_t size) __alloc_size(1, 2);
Index: linux-2.6/mm/vmalloc.c
===================================================================
--- linux-2.6.orig/mm/vmalloc.c
+++ linux-2.6/mm/vmalloc.c
@@ -3420,6 +3420,13 @@ void *vmalloc(unsigned long size)
}
EXPORT_SYMBOL(vmalloc);

+void *vmalloc_huge_node(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));
+}
+
/**
* vmalloc_huge - allocate virtually contiguous memory, allow huge pages
* @size: allocation size