aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/itimer.c
diff options
context:
space:
mode:
authorDmitry Torokhov <dmitry.torokhov@gmail.com>2012-03-09 13:55:17 -0500
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-03-09 13:55:17 -0500
commitb675b3667f6729dcd1036a2a129b35445947f905 (patch)
tree0d58791e9063d3ca2c352da6f3e7df2bdb876f9d /kernel/itimer.c
parent104a5f3cad8f2f27cadbdf0029400ecd9e17ccc0 (diff)
parent192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d (diff)
Merge commit 'v3.3-rc6' into next
Diffstat (limited to 'kernel/itimer.c')
-rw-r--r--kernel/itimer.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/itimer.c b/kernel/itimer.c
index d802883153da..22000c3db0dd 100644
--- a/kernel/itimer.c
+++ b/kernel/itimer.c
@@ -52,22 +52,22 @@ static void get_cpu_itimer(struct task_struct *tsk, unsigned int clock_id,
52 52
53 cval = it->expires; 53 cval = it->expires;
54 cinterval = it->incr; 54 cinterval = it->incr;
55 if (!cputime_eq(cval, cputime_zero)) { 55 if (cval) {
56 struct task_cputime cputime; 56 struct task_cputime cputime;
57 cputime_t t; 57 cputime_t t;
58 58
59 thread_group_cputimer(tsk, &cputime); 59 thread_group_cputimer(tsk, &cputime);
60 if (clock_id == CPUCLOCK_PROF) 60 if (clock_id == CPUCLOCK_PROF)
61 t = cputime_add(cputime.utime, cputime.stime); 61 t = cputime.utime + cputime.stime;
62 else 62 else
63 /* CPUCLOCK_VIRT */ 63 /* CPUCLOCK_VIRT */
64 t = cputime.utime; 64 t = cputime.utime;
65 65
66 if (cputime_le(cval, t)) 66 if (cval < t)
67 /* about to fire */ 67 /* about to fire */
68 cval = cputime_one_jiffy; 68 cval = cputime_one_jiffy;
69 else 69 else
70 cval = cputime_sub(cval, t); 70 cval = cval - t;
71 } 71 }
72 72
73 spin_unlock_irq(&tsk->sighand->siglock); 73 spin_unlock_irq(&tsk->sighand->siglock);
@@ -161,10 +161,9 @@ static void set_cpu_itimer(struct task_struct *tsk, unsigned int clock_id,
161 161
162 cval = it->expires; 162 cval = it->expires;
163 cinterval = it->incr; 163 cinterval = it->incr;
164 if (!cputime_eq(cval, cputime_zero) || 164 if (cval || nval) {
165 !cputime_eq(nval, cputime_zero)) { 165 if (nval > 0)
166 if (cputime_gt(nval, cputime_zero)) 166 nval += cputime_one_jiffy;
167 nval = cputime_add(nval, cputime_one_jiffy);
168 set_process_cpu_timer(tsk, clock_id, &nval, &cval); 167 set_process_cpu_timer(tsk, clock_id, &nval, &cval);
169 } 168 }
170 it->expires = nval; 169 it->expires = nval;