On (11/08/15 14:04), Tetsuo Handa wrote:
[..]
> Also, we might want to add a helper that does vmalloc() when
> kmalloc() failed because locations that do
>
> ptr = kmalloc(size, GFP_NOFS);
> if (!ptr)
> ptr = vmalloc(size); /* Wrong because GFP_KERNEL is used implicitly */
>
> are found.
ext4 does something like that.
void *ext4_kvmalloc(size_t size, gfp_t flags)
{
void *ret;
ret = kmalloc(size, flags | __GFP_NOWARN);
if (!ret)
ret = __vmalloc(size, flags, PAGE_KERNEL);
return ret;
}
-ss
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