[lkml]   [2019]   [May]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2/6] x86: hv: hv_init.c: Replace alloc_page() with kmem_cache_alloc()
Stephen Hemminger <> writes:

> I would worry that kmem_cache_alloc does not currently have same alignment constraints.
> See discussion here:

I think it even was me who reported this bug with XFS originally :-)

Yes, plain kmalloc() doesn't give you alignment guarantees (it is very
easy to prove, e.g. with CONFIG_KASAN), however, kmem_cache_create() (and
dma_pool_create() to that matter) has explicit 'align' parameter and it
is a bug if it is not respected.


 \ /
  Last update: 2019-05-08 21:53    [W:1.074 / U:1.276 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site