diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2013-10-07 11:29:24 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-09 14:47:53 +0200 |
| commit | 6688cc05473b36a0a3d3971e1adf1712919b32eb (patch) | |
| tree | 2305dca14e2df669b48138088bd93cf51db37721 /include/linux/sched.h | |
| parent | 7851a45cd3f6198bf542c30e27b330e8eeb3736c (diff) | |
| download | lwn-6688cc05473b36a0a3d3971e1adf1712919b32eb.tar.gz lwn-6688cc05473b36a0a3d3971e1adf1712919b32eb.zip | |
mm: numa: Do not group on RO pages
And here's a little something to make sure not the whole world ends up
in a single group.
As while we don't migrate shared executable pages, we do scan/fault on
them. And since everybody links to libc, everybody ends up in the same
group.
Suggested-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-47-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index b0b343b1ba64..ff543851a18a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1450,13 +1450,16 @@ struct task_struct { /* Future-safe accessor for struct task_struct's cpus_allowed. */ #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) +#define TNF_MIGRATED 0x01 +#define TNF_NO_GROUP 0x02 + #ifdef CONFIG_NUMA_BALANCING -extern void task_numa_fault(int last_node, int node, int pages, bool migrated); +extern void task_numa_fault(int last_node, int node, int pages, int flags); extern pid_t task_numa_group_id(struct task_struct *p); extern void set_numabalancing_state(bool enabled); #else static inline void task_numa_fault(int last_node, int node, int pages, - bool migrated) + int flags) { } static inline pid_t task_numa_group_id(struct task_struct *p) |