From 2cd8231796b5e7133b1c3d66ad7d2a3c42c97258 Mon Sep 17 00:00:00 2001 From: Vitaly Wool Date: Wed, 6 Aug 2025 14:41:47 +0200 Subject: mm/slub: allow to set node and align in k[v]realloc Reimplement k[v]realloc_node() to be able to set node and alignment should a user need to do so. In order to do that while retaining the maximal backward compatibility, add k[v]realloc_node_align() functions and redefine the rest of API using these new ones. While doing that, we also keep the number of _noprof variants to a minimum, which implies some changes to the existing users of older _noprof functions, that basically being bcachefs. With that change we also provide the ability for the Rust part of the kernel to set node and alignment in its K[v]xxx [re]allocations. Link: https://lkml.kernel.org/r/20250806124147.1724658-1-vitaly.wool@konsulko.se Signed-off-by: Vitaly Wool Reviewed-by: Vlastimil Babka Cc: Alice Ryhl Cc: Danilo Krummrich Cc: Herbert Xu Cc: Jann Horn Cc: Kent Overstreet Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Uladzislau Rezki (Sony) Signed-off-by: Andrew Morton --- include/linux/bpfptr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/bpfptr.h') diff --git a/include/linux/bpfptr.h b/include/linux/bpfptr.h index 1af241525a17..f6e0795db484 100644 --- a/include/linux/bpfptr.h +++ b/include/linux/bpfptr.h @@ -67,7 +67,7 @@ static inline int copy_to_bpfptr_offset(bpfptr_t dst, size_t offset, static inline void *kvmemdup_bpfptr_noprof(bpfptr_t src, size_t len) { - void *p = kvmalloc_noprof(len, GFP_USER | __GFP_NOWARN); + void *p = kvmalloc_node_align_noprof(len, 1, GFP_USER | __GFP_NOWARN, NUMA_NO_NODE); if (!p) return ERR_PTR(-ENOMEM); -- cgit v1.2.3