Simply call reclaim if we get to a point where we cannot perform
the desired atomic allocation. If the reclaim is successful then
restart the allocation.
This will allow atomic allocs to not run out of memory. We reclaim clean
pages instead. If we are in an interrupt then the interrupt holdoff
will be long since reclaim processing is intensive. However, we will
no longer OOM.
Signed-off-by: Christoph Lameter <[email protected]>
---
mm/page_alloc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
Index: linux-2.6/mm/page_alloc.c
===================================================================
--- linux-2.6.orig/mm/page_alloc.c 2007-08-14 07:42:09.000000000 -0700
+++ linux-2.6/mm/page_alloc.c 2007-08-14 07:53:34.000000000 -0700
@@ -1326,8 +1326,12 @@ nofail_alloc:
}
/* Atomic allocations - we can't balance anything */
- if (!wait)
+ if (!wait) {
+ if (try_to_free_pages(zonelist->zones, order, gfp_mask
+ | __GFP_NOMEMALLOC))
+ goto restart;
goto nopage;
+ }
cond_resched();
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
