[NET]: Eliminate unused argument from sk_stream_alloc_pskb

[pandora-kernel.git] / mm / oom_kill.c

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 5c5aa73..96473b4 100644 (file)
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -28,7 +28,7 @@
 
 int sysctl_panic_on_oom;
 int sysctl_oom_kill_allocating_task;
-static DEFINE_MUTEX(zone_scan_mutex);
+static DEFINE_SPINLOCK(zone_scan_mutex);
 /* #define DEBUG */
 
 /**
@@ -143,7 +143,7 @@ unsigned long badness(struct task_struct *p, unsigned long uptime)
         * because p may have allocated or otherwise mapped memory on
         * this node before. However it will be less likely.
         */
-       if (!cpuset_excl_nodes_overlap(p))
+       if (!cpuset_mems_allowed_intersects(current, p))
                points /= 8;
 
        /*
@@ -212,7 +212,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints)
                if (!p->mm)
                        continue;
                /* skip the init task */
-               if (is_init(p))
+               if (is_global_init(p))
                        continue;
 
                /*
@@ -265,7 +265,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints)
  */
 static void __oom_kill_task(struct task_struct *p, int verbose)
 {
-       if (is_init(p)) {
+       if (is_global_init(p)) {
                WARN_ON(1);
                printk(KERN_WARNING "tried to kill init!\n");
                return;
@@ -278,14 +278,15 @@ static void __oom_kill_task(struct task_struct *p, int verbose)
        }
 
        if (verbose)
-               printk(KERN_ERR "Killed process %d (%s)\n", p->pid, p->comm);
+               printk(KERN_ERR "Killed process %d (%s)\n",
+                               task_pid_nr(p), p->comm);
 
        /*
         * We give our sacrificial lamb high priority and access to
         * all the memory it needs. That way it should be able to
         * exit() and clear out its resources quickly...
         */
-       p->time_slice = HZ;
+       p->rt.time_slice = HZ;
        set_tsk_thread_flag(p, TIF_MEMDIE);
 
        force_sig(SIGKILL, p);
@@ -326,7 +327,7 @@ static int oom_kill_task(struct task_struct *p)
         * to memory reserves though, otherwise we might deplete all memory.
         */
        do_each_thread(g, q) {
-               if (q->mm == mm && q->tgid != p->tgid)
+               if (q->mm == mm && !same_thread_group(q, p))
                        force_sig(SIGKILL, q);
        } while_each_thread(g, q);
 
@@ -337,7 +338,6 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
                            unsigned long points, const char *message)
 {
        struct task_struct *c;
-       struct list_head *tsk;
 
        if (printk_ratelimit()) {
                printk(KERN_WARNING "%s invoked oom-killer: "
@@ -357,11 +357,10 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
        }
 
        printk(KERN_ERR "%s: kill process %d (%s) score %li or a child\n",
-                                       message, p->pid, p->comm, points);
+                                       message, task_pid_nr(p), p->comm, points);
 
        /* Try to kill a child first */
-       list_for_each(tsk, &p->children) {
-               c = list_entry(tsk, struct task_struct, sibling);
+       list_for_each_entry(c, &p->children, sibling) {
                if (c->mm == p->mm)
                        continue;
                if (!oom_kill_task(c))
@@ -396,7 +395,7 @@ int try_set_zone_oom(struct zonelist *zonelist)
 
        z = zonelist->zones;
 
-       mutex_lock(&zone_scan_mutex);
+       spin_lock(&zone_scan_mutex);
        do {
                if (zone_is_oom_locked(*z)) {
                        ret = 0;
@@ -413,7 +412,7 @@ int try_set_zone_oom(struct zonelist *zonelist)
                zone_set_flag(*z, ZONE_OOM_LOCKED);
        } while (*(++z) != NULL);
 out:
-       mutex_unlock(&zone_scan_mutex);
+       spin_unlock(&zone_scan_mutex);
        return ret;
 }
 
@@ -428,11 +427,11 @@ void clear_zonelist_oom(struct zonelist *zonelist)
 
        z = zonelist->zones;
 
-       mutex_lock(&zone_scan_mutex);
+       spin_lock(&zone_scan_mutex);
        do {
                zone_clear_flag(*z, ZONE_OOM_LOCKED);
        } while (*(++z) != NULL);
-       mutex_unlock(&zone_scan_mutex);
+       spin_unlock(&zone_scan_mutex);
 }
 
 /**
@@ -463,7 +462,6 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order)
         * NUMA) that may require different handling.
         */
        constraint = constrained_alloc(zonelist, gfp_mask);
-       cpuset_lock();
        read_lock(&tasklist_lock);
 
        switch (constraint) {
@@ -495,11 +493,10 @@ retry:
                /* Found nothing?!?! Either we hang forever, or we panic. */
                if (!p) {
                        read_unlock(&tasklist_lock);
-                       cpuset_unlock();
                        panic("Out of memory and no killable processes...\n");
                }
 
-               if (oom_kill_process(p, points, gfp_mask, order,
+               if (oom_kill_process(p, gfp_mask, order, points,
                                     "Out of memory"))
                        goto retry;
 
@@ -508,7 +505,6 @@ retry:
 
 out:
        read_unlock(&tasklist_lock);
-       cpuset_unlock();
 
        /*
         * Give "p" a good chance of killing itself before we