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| author | Iulia Manda <iulia.manda21@gmail.com> | 2014-10-31 01:13:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-11-04 07:17:57 +0100 |
| commit | 44dba3d5d6a10685fb15bd1954e62016334825e0 (patch) | |
| tree | 6a0c9b0c34225a78263212037c69c87e97905211 /kernel/sched/debug.c | |
| parent | sched/deadline: Don't check CONFIG_SMP in switched_from_dl() (diff) | |
| download | linux-44dba3d5d6a10685fb15bd1954e62016334825e0.tar.xz linux-44dba3d5d6a10685fb15bd1954e62016334825e0.zip | |
sched: Refactor task_struct to use numa_faults instead of numa_* pointers
This patch simplifies task_struct by removing the four numa_* pointers
in the same array and replacing them with the array pointer. By doing this,
on x86_64, the size of task_struct is reduced by 3 ulong pointers (24 bytes on
x86_64).
A new parameter is added to the task_faults_idx function so that it can return
an index to the correct offset, corresponding with the old precalculated
pointers.
All of the code in sched/ that depended on task_faults_idx and numa_* was
changed in order to match the new logic.
Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mgorman@suse.de
Cc: dave@stgolabs.net
Cc: riel@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20141031001331.GA30662@winterfell
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index eeb6046d60c7..92cc52001e74 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -535,8 +535,8 @@ static void sched_show_numa(struct task_struct *p, struct seq_file *m) unsigned long nr_faults = -1; int cpu_current, home_node; - if (p->numa_faults_memory) - nr_faults = p->numa_faults_memory[2*node + i]; + if (p->numa_faults) + nr_faults = p->numa_faults[2*node + i]; cpu_current = !i ? (task_node(p) == node) : (pol && node_isset(node, pol->v.nodes)); |