Messages in this thread Patch in this message | | | Date | Tue, 5 Jun 2007 15:39:05 -0700 (PDT) | From | David Rientjes <> | Subject | [patch] cpusets: do not allow TIF_MEMDIE tasks to allocate globally |
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Reverts git commit c596d9f320aaf30d28c1d793ff3a976dee1db8f5.
OOM-killed tasks, marked as TIF_MEMDIE, should not be able to access memory outside its cpuset because it could potentially cause other exclusive cpusets to OOM themselves.
Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Paul Jackson <pj@sgi.com> Signed-off-by: David Rientjes <rientjes@google.com> --- kernel/cpuset.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-)
diff --git a/kernel/cpuset.c b/kernel/cpuset.c --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -2431,12 +2431,6 @@ int __cpuset_zone_allowed_softwall(struct zone *z, gfp_t gfp_mask) might_sleep_if(!(gfp_mask & __GFP_HARDWALL)); if (node_isset(node, current->mems_allowed)) return 1; - /* - * Allow tasks that have access to memory reserves because they have - * been OOM killed to get memory anywhere. - */ - if (unlikely(test_thread_flag(TIF_MEMDIE))) - return 1; if (gfp_mask & __GFP_HARDWALL) /* If hardwall request, stop here */ return 0; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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