The patch titled oom: suppress nodes that are not allowed from meminfo on page alloc failure has been removed from the -mm tree. Its filename was oom-suppress-nodes-that-are-not-allowed-from-meminfo-on-page-alloc-failure.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: oom: suppress nodes that are not allowed from meminfo on page alloc failure From: David Rientjes <rientjes@xxxxxxxxxx> Displaying extremely verbose meminfo for all nodes on the system is overkill for page allocation failures when the context restricts that allocation to only a subset of nodes. We don't particularly care about the state of all nodes when some are not allowed in the current context, they can have an abundance of memory but we can't allocate from that part of memory. This patch suppresses disallowed nodes from the meminfo dump on a page allocation failure if the context requires it. Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff -puN mm/page_alloc.c~oom-suppress-nodes-that-are-not-allowed-from-meminfo-on-page-alloc-failure mm/page_alloc.c --- a/mm/page_alloc.c~oom-suppress-nodes-that-are-not-allowed-from-meminfo-on-page-alloc-failure +++ a/mm/page_alloc.c @@ -2171,12 +2171,25 @@ rebalance: nopage: if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit()) { - printk(KERN_WARNING "%s: page allocation failure." - " order:%d, mode:0x%x\n", + unsigned int filter = SHOW_MEM_FILTER_NODES; + + /* + * This documents exceptions given to allocations in certain + * contexts that are allowed to allocate outside current's set + * of allowed nodes. + */ + if (!(gfp_mask & __GFP_NOMEMALLOC)) + if (test_thread_flag(TIF_MEMDIE) || + (current->flags & (PF_MEMALLOC | PF_EXITING))) + filter &= ~SHOW_MEM_FILTER_NODES; + if (in_interrupt() || !wait) + filter &= ~SHOW_MEM_FILTER_NODES; + + pr_warning("%s: page allocation failure. order:%d, mode:0x%x\n", current->comm, order, gfp_mask); dump_stack(); if (!should_suppress_show_mem()) - show_mem(); + __show_mem(filter); } return page; got_pg: _ Patches currently in -mm which might be from rientjes@xxxxxxxxxx are origin.patch jbd-remove-dependency-on-__gfp_nofail.patch memcg-res_counter_read_u64-fix-potential-races-on-32-bit-machines.patch memcg-give-current-access-to-memory-reserves-if-its-trying-to-die.patch memcg-document-cgroup-dirty-memory-interfaces.patch memcg-add-page_cgroup-flags-for-dirty-page-tracking.patch memcg-add-dirty-page-accounting-infrastructure.patch memcg-add-kernel-calls-for-memcg-dirty-page-stats.patch memcg-add-dirty-limits-to-mem_cgroup.patch memcg-add-cgroupfs-interface-to-memcg-dirty-limits.patch memcg-add-dirty-limiting-routines.patch memcg-check-memcg-dirty-limits-in-page-writeback.patch memcg-make-background-writeback-memcg-aware.patch cpuset-remove-unneeded-nodemask_alloc-in-cpuset_sprintf_memlist.patch cpuset-remove-unneeded-nodemask_alloc-in-cpuset_sprintf_memlist-v2.patch cpuset-remove-unneeded-nodemask_alloc-in-cpuset_attch.patch cpuset-fix-unchecked-calls-to-nodemask_alloc.patch cpuset-fix-unchecked-calls-to-nodemask_alloc-v2.patch cpuset-hold-callback_mutex-in-cpuset_clone.patch sysctl-add-some-missing-input-constraint-checks.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html