| From: |
| Christoph Hellwig <hch-AT-lst.de> |
| To: |
| Vlastimil Babka <vbabka-AT-kernel.org>, Harry Yoo <harry-AT-kernel.org>, Andrew Morton <akpm-AT-linux-foundation.org> |
| Subject: |
| improve the kmem_cache_alloc_bulk API v2 |
| Date: |
| Thu, 28 May 2026 11:34:31 +0200 |
| Message-ID: |
| <20260528093437.2519248-1-hch@lst.de> |
| Cc: |
| Hao Li <hao.li-AT-linux.dev>, Christoph Lameter <cl-AT-gentwo.org>, David Rientjes <rientjes-AT-google.com>, Roman Gushchin <roman.gushchin-AT-linux.dev>, Jesper Dangaard Brouer <hawk-AT-kernel.org>, linux-arm-msm-AT-vger.kernel.org, dri-devel-AT-lists.freedesktop.org, freedreno-AT-lists.freedesktop.org, linux-kernel-AT-vger.kernel.org, linux-mm-AT-kvack.org, io-uring-AT-vger.kernel.org, kasan-dev-AT-googlegroups.com, bpf-AT-vger.kernel.org, netdev-AT-vger.kernel.org |
| Archive-link: |
| Article |
Hi all,
kmem_cache_alloc_bulk has a very unintuitive and undocumented return
value convention. Fix that and add documentation.
Changes since v1:
- fix compile in drm and test_meminit
- document that 0-sized allocations fail
Diffstat:
drivers/gpu/drm/msm/msm_iommu.c | 6 +--
drivers/gpu/drm/panthor/panthor_mmu.c | 13 +++----
include/linux/slab.h | 6 ++-
io_uring/io_uring.c | 23 +++++--------
lib/test_meminit.c | 23 ++++++-------
mm/kasan/kasan_test_c.c | 5 +-
mm/kfence/kfence_test.c | 9 ++---
mm/slub.c | 59 +++++++++++++++++++---------------
net/bpf/test_run.c | 7 +---
net/core/skbuff.c | 24 +++++++------
tools/include/linux/slab.h | 2 -
tools/testing/shared/linux.c | 19 ++++------
12 files changed, 97 insertions(+), 99 deletions(-)
