Re: [Oops] i386 mm/slab.c (cache_flusharray)

[Manfred Spraul]

Christoph Hellwig wrote:

> Looks like whe're better of fixing mm/slab.c
Maybe I'm blind, but I don't see how kmem_cache_alloc can return NULL 
with __GFP_NOFAIL:
- kmem_cache_alloc calls __cache_alloc.
- cache_alloc only return 0 if cache_alloc_refill returns 0.
- cache_alloc_refill only return 0 if cache_grow returns 0.
- cache_grow only return 0 if
   * SLAB_NO_GROW is set in flags.
   * get_free_pages(flags) fails.
   * kmem_cache_alloc(flags&SLAB_LEVEL_MASK) fails.
      SLAB_LEVEL_MASK contains __GFP_NOFAIL.

--
   Manfred


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