twl4030_charger: increase end-of-charge current

[pandora-kernel.git] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index dbaa624..349953e 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -63,6 +63,7 @@ EXPORT_SYMBOL(jiffies_64);
 #define TVR_SIZE (1 << TVR_BITS)
 #define TVN_MASK (TVN_SIZE - 1)
 #define TVR_MASK (TVR_SIZE - 1)
+#define MAX_TVAL ((unsigned long)((1ULL << (TVR_BITS + 4*TVN_BITS)) - 1))
 
 struct tvec {
        struct list_head vec[TVN_SIZE];
@@ -144,9 +145,11 @@ static unsigned long round_jiffies_common(unsigned long j, int cpu,
        /* now that we have rounded, subtract the extra skew again */
        j -= cpu * 3;
 
-       if (j <= jiffies) /* rounding ate our timeout entirely; */
-               return original;
-       return j;
+       /*
+        * Make sure j is still in the future. Otherwise return the
+        * unmodified value.
+        */
+       return time_is_after_jiffies(j) ? j : original;
 }
 
 /**
@@ -356,11 +359,12 @@ static void internal_add_timer(struct tvec_base *base, struct timer_list *timer)
                vec = base->tv1.vec + (base->timer_jiffies & TVR_MASK);
        } else {
                int i;
-               /* If the timeout is larger than 0xffffffff on 64-bit
-                * architectures then we use the maximum timeout:
+               /* If the timeout is larger than MAX_TVAL (on 64-bit
+                * architectures or with CONFIG_BASE_SMALL=1) then we
+                * use the maximum timeout.
                 */
-               if (idx > 0xffffffffUL) {
-                       idx = 0xffffffffUL;
+               if (idx > MAX_TVAL) {
+                       idx = MAX_TVAL;
                        expires = idx + base->timer_jiffies;
                }
                i = (expires >> (TVR_BITS + 3 * TVN_BITS)) & TVN_MASK;
@@ -765,7 +769,7 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires)
 
        bit = find_last_bit(&mask, BITS_PER_LONG);
 
-       mask = (1 << bit) - 1;
+       mask = (1UL << bit) - 1;
 
        expires_limit = expires_limit & ~(mask);
 
@@ -1368,7 +1372,7 @@ SYSCALL_DEFINE0(getppid)
        int pid;
 
        rcu_read_lock();
-       pid = task_tgid_vnr(current->real_parent);
+       pid = task_tgid_vnr(rcu_dereference(current->real_parent));
        rcu_read_unlock();
 
        return pid;
@@ -1628,12 +1632,12 @@ static int __cpuinit init_timers_cpu(int cpu)
                        boot_done = 1;
                        base = &boot_tvec_bases;
                }
+               spin_lock_init(&base->lock);
                tvec_base_done[cpu] = 1;
        } else {
                base = per_cpu(tvec_bases, cpu);
        }
 
-       spin_lock_init(&base->lock);
 
        for (j = 0; j < TVN_SIZE; j++) {
                INIT_LIST_HEAD(base->tv5.vec + j);