| Message ID | 1234460848-23253-1-git-send-email-peppe.cavallaro@st.com (mailing list archive) |
|---|---|
| State | Rejected |
| Delegated to: | Paul Mundt |
| Headers | show |
diff --git a/mm/slab.c b/mm/slab.c index ddc41f3..031d785 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2262,7 +2262,7 @@ kmem_cache_create (const char *name, size_t size, size_t align, ralign = align; } /* disable debug if necessary */ - if (ralign > __alignof__(unsigned long long)) + if (ralign > ARCH_KMALLOC_MINALIGN) flags &= ~(SLAB_RED_ZONE | SLAB_STORE_USER); /* * 4) Store it.
I think, this fix is necessary for all the architectures want to perform DMA into kmalloc caches and need a guaranteed alignment larger than the alignment of a 64-bit integer. An example is sh architecture where ARCH_KMALLOC_MINALIGN is L1_CACHE_BYTES. As side effect, these kind of objects cannot be visible within the /proc/slab_allocators file. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> --- mm/slab.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)