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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-19 10:53:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-19 10:53:31 -0700 |
| commit | 54fb58aec47a49a80534d2ccabd319334d6b0ef8 (patch) | |
| tree | 09b72d85280c563d3abbc4a97f32a4989f7e3c38 | |
| parent | 189b756271e69bb6b9dfe4703b7f74855ab201b4 (diff) | |
| parent | c15cdea517414e0b29a11e0a0e2443d127c9109b (diff) | |
Merge tag 'slab-fixes-for-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- stable fix to prevent kernel warnings with KASAN_HW_TAGS on arm64
due to improperly resolved kmalloc alignment restrictions (Catalin
Marinas)
* tag 'slab-fixes-for-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm: slab: Do not create kmalloc caches smaller than arch_slab_minalign()
| -rw-r--r-- | mm/slab_common.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 8fda308e400d..9bbffe82d65a 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -895,10 +895,13 @@ void __init setup_kmalloc_cache_index_table(void) static unsigned int __kmalloc_minalign(void) { + unsigned int minalign = dma_get_cache_alignment(); + if (IS_ENABLED(CONFIG_DMA_BOUNCE_UNALIGNED_KMALLOC) && is_swiotlb_allocated()) - return ARCH_KMALLOC_MINALIGN; - return dma_get_cache_alignment(); + minalign = ARCH_KMALLOC_MINALIGN; + + return max(minalign, arch_slab_minalign()); } void __init |