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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-09 13:55:17 -0500 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-09 13:55:17 -0500 |
commit | b675b3667f6729dcd1036a2a129b35445947f905 (patch) | |
tree | 0d58791e9063d3ca2c352da6f3e7df2bdb876f9d /kernel/itimer.c | |
parent | 104a5f3cad8f2f27cadbdf0029400ecd9e17ccc0 (diff) | |
parent | 192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d (diff) |
Merge commit 'v3.3-rc6' into next
Diffstat (limited to 'kernel/itimer.c')
-rw-r--r-- | kernel/itimer.c | 15 |
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; |