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authorMaxime Ripard <mripard@kernel.org>2024-01-29 14:20:23 +0100
committerMaxime Ripard <mripard@kernel.org>2024-01-29 14:20:23 +0100
commit4db102dcb0396a4ccf89b1eac0f4eb3fd167a080 (patch)
treeea47469abffb236c5ba305c8a406e1f8209c6f34 /include/linux/bpf_mem_alloc.h
parentaeb262c353354eab81ab0d3242afa70984b7dc34 (diff)
parent6613476e225e090cc9aad49be7fa504e290dd33d (diff)
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Merge drm/drm-next into drm-misc-next
Kickstart 6.9 development cycle. Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'include/linux/bpf_mem_alloc.h')
-rw-r--r--include/linux/bpf_mem_alloc.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/bpf_mem_alloc.h b/include/linux/bpf_mem_alloc.h
index bb1223b21308..aaf004d94322 100644
--- a/include/linux/bpf_mem_alloc.h
+++ b/include/linux/bpf_mem_alloc.h
@@ -11,6 +11,7 @@ struct bpf_mem_caches;
struct bpf_mem_alloc {
struct bpf_mem_caches __percpu *caches;
struct bpf_mem_cache __percpu *cache;
+ struct obj_cgroup *objcg;
bool percpu;
struct work_struct work;
};
@@ -21,8 +22,15 @@ struct bpf_mem_alloc {
* 'size = 0' is for bpf_mem_alloc which manages many fixed-size objects.
* Alloc and free are done with bpf_mem_{alloc,free}() and the size of
* the returned object is given by the size argument of bpf_mem_alloc().
+ * If percpu equals true, error will be returned in order to avoid
+ * large memory consumption and the below bpf_mem_alloc_percpu_unit_init()
+ * should be used to do on-demand per-cpu allocation for each size.
*/
int bpf_mem_alloc_init(struct bpf_mem_alloc *ma, int size, bool percpu);
+/* Initialize a non-fix-size percpu memory allocator */
+int bpf_mem_alloc_percpu_init(struct bpf_mem_alloc *ma, struct obj_cgroup *objcg);
+/* The percpu allocation with a specific unit size. */
+int bpf_mem_alloc_percpu_unit_init(struct bpf_mem_alloc *ma, int size);
void bpf_mem_alloc_destroy(struct bpf_mem_alloc *ma);
/* kmalloc/kfree equivalent: */