Re: [PATCH] allow PF_MEMALLOC tasks to directly reclaim pages

Marcelo, Infact, the test can be made even weaker than that. We only what to avoid the inactive-clean list when allocating from within an interrupt (or from a bottom-half handler) to avoid deadlock on taking the pagecache_lock and pagemap_lru_lock. Note: no allocations are done while hold

[PATCH] allow PF_MEMALLOC tasks to directly reclaim pages

Linus, Currently __alloc_pages() does not allow PF_MEMALLOC tasks to free clean inactive pages. This is senseless --- if the allocation has __GFP_WAIT set, its ok to grab the pagemap_lru_lock/pagecache_lock/etc. I checked all possible codepaths after reclaim_page() and they are ok. The follow