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authorChristoph Lameter <clameter@sgi.com>2006-09-25 23:31:40 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:48:50 -0700
commit9b819d204cf602eab1a53a9ec4b8d2ca51e02a1d (patch)
tree9442bf01a00a93a8ae54462fb4878588e1b2a6bf /kernel/cpuset.c
parent056c62418cc639bf2fe962c6a6ee56054b838bc7 (diff)
[PATCH] Add __GFP_THISNODE to avoid fallback to other nodes and ignore cpuset/memory policy restrictions
Add a new gfp flag __GFP_THISNODE to avoid fallback to other nodes. This flag is essential if a kernel component requires memory to be located on a certain node. It will be needed for alloc_pages_node() to force allocation on the indicated node and for alloc_pages() to force allocation on the current node. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/cpuset.c')
-rw-r--r--kernel/cpuset.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 4ea6f0dc2fc5..76940361273e 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2316,7 +2316,7 @@ int __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
const struct cpuset *cs; /* current cpuset ancestors */
int allowed; /* is allocation in zone z allowed? */
- if (in_interrupt())
+ if (in_interrupt() || (gfp_mask & __GFP_THISNODE))
return 1;
node = z->zone_pgdat->node_id;
might_sleep_if(!(gfp_mask & __GFP_HARDWALL));