From 71baba4b92dc1fa1bc461742c6ab1942ec6034e9 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 6 Nov 2015 16:28:28 -0800 Subject: mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM __GFP_WAIT was used to signal that the caller was in atomic context and could not sleep. Now it is possible to distinguish between true atomic context and callers that are not willing to sleep. The latter should clear __GFP_DIRECT_RECLAIM so kswapd will still wake. As clearing __GFP_WAIT behaves differently, there is a risk that people will clear the wrong flags. This patch renames __GFP_WAIT to __GFP_RECLAIM to clearly indicate what it does -- setting it allows all reclaim activity, clearing them prevents it. [akpm@linux-foundation.org: fix build] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mel Gorman Acked-by: Michal Hocko Acked-by: Vlastimil Babka Acked-by: Johannes Weiner Cc: Christoph Lameter Acked-by: David Rientjes Cc: Vitaly Wool Cc: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/filemap.c') diff --git a/mm/filemap.c b/mm/filemap.c index 58e04e26f996..6ef3674c0763 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2713,7 +2713,7 @@ EXPORT_SYMBOL(generic_file_write_iter); * page is known to the local caching routines. * * The @gfp_mask argument specifies whether I/O may be performed to release - * this page (__GFP_IO), and whether the call may block (__GFP_WAIT & __GFP_FS). + * this page (__GFP_IO), and whether the call may block (__GFP_RECLAIM & __GFP_FS). * */ int try_to_release_page(struct page *page, gfp_t gfp_mask) -- cgit v1.2.3