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authorAnton Vorontsov <anton.vorontsov@linaro.org>2012-07-31 07:59:42 -0400
committerAnton Vorontsov <anton.vorontsov@linaro.org>2012-07-31 08:16:47 -0400
commite6db06a53b1dcf4e9da4aba143e2eb4d63418abb (patch)
tree10adcecb71c95ce4393c39fa7911d091bcadfe09 /mm/oom_kill.c
parentecc2edd56c49fa31a0a9ed15a7bf810ae79d3b85 (diff)
parentc56f5c0342dfee11a1a13d2f5bb7618de5b17590 (diff)
Merge with upstream to accommodate with thermal changes
This merge is performed to take commit c56f5c0342dfee11a1 ("Thermal: Make Thermal trip points writeable") out of Linus' tree and then fixup power supply class. This is needed since thermal stuff added a new argument: CC drivers/power/power_supply_core.o drivers/power/power_supply_core.c: In function ‘psy_register_thermal’: drivers/power/power_supply_core.c:204:6: warning: passing argument 3 of ‘thermal_zone_device_register’ makes integer from pointer without a cast [enabled by default] include/linux/thermal.h:154:29: note: expected ‘int’ but argument is of type ‘struct power_supply *’ drivers/power/power_supply_core.c:204:6: error: too few arguments to function ‘thermal_zone_device_register’ include/linux/thermal.h:154:29: note: declared here make[1]: *** [drivers/power/power_supply_core.o] Error 1 make: *** [drivers/power/] Error 2 Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 416637f0e924..ac300c99baf6 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -184,6 +184,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
184 const nodemask_t *nodemask, unsigned long totalpages) 184 const nodemask_t *nodemask, unsigned long totalpages)
185{ 185{
186 long points; 186 long points;
187 long adj;
187 188
188 if (oom_unkillable_task(p, memcg, nodemask)) 189 if (oom_unkillable_task(p, memcg, nodemask))
189 return 0; 190 return 0;
@@ -192,7 +193,8 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
192 if (!p) 193 if (!p)
193 return 0; 194 return 0;
194 195
195 if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN) { 196 adj = p->signal->oom_score_adj;
197 if (adj == OOM_SCORE_ADJ_MIN) {
196 task_unlock(p); 198 task_unlock(p);
197 return 0; 199 return 0;
198 } 200 }
@@ -210,14 +212,11 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
210 * implementation used by LSMs. 212 * implementation used by LSMs.
211 */ 213 */
212 if (has_capability_noaudit(p, CAP_SYS_ADMIN)) 214 if (has_capability_noaudit(p, CAP_SYS_ADMIN))
213 points -= 30 * totalpages / 1000; 215 adj -= 30;
214 216
215 /* 217 /* Normalize to oom_score_adj units */
216 * /proc/pid/oom_score_adj ranges from -1000 to +1000 such that it may 218 adj *= totalpages / 1000;
217 * either completely disable oom killing or always prefer a certain 219 points += adj;
218 * task.
219 */
220 points += p->signal->oom_score_adj * totalpages / 1000;
221 220
222 /* 221 /*
223 * Never return 0 for an eligible task regardless of the root bonus and 222 * Never return 0 for an eligible task regardless of the root bonus and
@@ -366,7 +365,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
366 365
367/** 366/**
368 * dump_tasks - dump current memory state of all system tasks 367 * dump_tasks - dump current memory state of all system tasks
369 * @mem: current's memory controller, if constrained 368 * @memcg: current's memory controller, if constrained
370 * @nodemask: nodemask passed to page allocator for mempolicy ooms 369 * @nodemask: nodemask passed to page allocator for mempolicy ooms
371 * 370 *
372 * Dumps the current memory state of all eligible tasks. Tasks not in the same 371 * Dumps the current memory state of all eligible tasks. Tasks not in the same