Re: [RFC 02/13] mm, page_alloc: set alloc_flags only once in slowpath

Tetsuo Handa
2016-05-10T11:28:33Z

Vlastimil Babka wrote:
> In __alloc_pages_slowpath(), alloc_flags doesn't change after it's initialized,
> so move the initialization above the retry: label. Also make the comment above
> the initialization more descriptive.

Not true. gfp_to_alloc_flags() will include ALLOC_NO_WATERMARKS if current
thread got TIF_MEMDIE after gfp_to_alloc_flags() was called for the first
time. Do you want to make TIF_MEMDIE threads fail their allocations without
using memory reserves?