diff options
| author | Paul Jackson <pj@sgi.com> | 2006-01-11 12:17:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-11 18:42:09 -0800 |
| commit | 4eac915d02453e81a32595cd7423492c81337a26 (patch) | |
| tree | 2c652730cdf2cb0015cf59a8f75506c917685091 /mm/page_alloc.c | |
| parent | 7365f3d169a1eae00e713c1a4eea90e86415dcc5 (diff) | |
| download | lwn-4eac915d02453e81a32595cd7423492c81337a26.tar.gz lwn-4eac915d02453e81a32595cd7423492c81337a26.zip | |
[PATCH] mm: gfp_atomic comments
Clarify in comments that GFP_ATOMIC means both "don't sleep" and "use
emergency pools", hence both ALLOC_HARDER and ALLOC_HIGH.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ce991b173aa9..d41a0662d4da 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -931,7 +931,8 @@ restart: * * The caller may dip into page reserves a bit more if the caller * cannot run direct reclaim, or if the caller has realtime scheduling - * policy. + * policy or is asking for __GFP_HIGH memory. GFP_ATOMIC requests will + * set both ALLOC_HARDER (!wait) and ALLOC_HIGH (__GFP_HIGH). */ alloc_flags = ALLOC_WMARK_MIN; if ((unlikely(rt_task(p)) && !in_interrupt()) || !wait) |