diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 11:17:35 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 11:17:35 -0400 |
commit | 1014cfe2fb4cdd663137aafb21448cb613dd6a7d (patch) | |
tree | 13b5fc4e7036b4226d94bd33aefb74a3dbb25b6a /arch/mips | |
parent | 8123d8f17d8ba9d67e556688e4f025456ca97842 (diff) | |
parent | 4726f2a617ebd868a4fdeb5679613b897e5f1676 (diff) |
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
lockdep: Reduce stack_trace usage
lockdep: No need to disable preemption in debug atomic ops
lockdep: Actually _dec_ in debug_atomic_dec
lockdep: Provide off case for redundant_hardirqs_on increment
lockdep: Simplify debug atomic ops
lockdep: Fix redundant_hardirqs_on incremented with irqs enabled
lockstat: Make lockstat counting per cpu
i8253: Convert i8253_lock to raw_spinlock
Diffstat (limited to 'arch/mips')
-rw-r--r-- | arch/mips/include/asm/i8253.h | 2 | ||||
-rw-r--r-- | arch/mips/kernel/i8253.c | 14 |
2 files changed, 8 insertions, 8 deletions
diff --git a/arch/mips/include/asm/i8253.h b/arch/mips/include/asm/i8253.h index 032ca73f181b..48bb82372994 100644 --- a/arch/mips/include/asm/i8253.h +++ b/arch/mips/include/asm/i8253.h | |||
@@ -12,7 +12,7 @@ | |||
12 | #define PIT_CH0 0x40 | 12 | #define PIT_CH0 0x40 |
13 | #define PIT_CH2 0x42 | 13 | #define PIT_CH2 0x42 |
14 | 14 | ||
15 | extern spinlock_t i8253_lock; | 15 | extern raw_spinlock_t i8253_lock; |
16 | 16 | ||
17 | extern void setup_pit_timer(void); | 17 | extern void setup_pit_timer(void); |
18 | 18 | ||
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c index ed5c441615e4..94794062a177 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/i8253.c | |||
@@ -15,7 +15,7 @@ | |||
15 | #include <asm/io.h> | 15 | #include <asm/io.h> |
16 | #include <asm/time.h> | 16 | #include <asm/time.h> |
17 | 17 | ||
18 | DEFINE_SPINLOCK(i8253_lock); | 18 | DEFINE_RAW_SPINLOCK(i8253_lock); |
19 | EXPORT_SYMBOL(i8253_lock); | 19 | EXPORT_SYMBOL(i8253_lock); |
20 | 20 | ||
21 | /* | 21 | /* |
@@ -26,7 +26,7 @@ EXPORT_SYMBOL(i8253_lock); | |||
26 | static void init_pit_timer(enum clock_event_mode mode, | 26 | static void init_pit_timer(enum clock_event_mode mode, |
27 | struct clock_event_device *evt) | 27 | struct clock_event_device *evt) |
28 | { | 28 | { |
29 | spin_lock(&i8253_lock); | 29 | raw_spin_lock(&i8253_lock); |
30 | 30 | ||
31 | switch(mode) { | 31 | switch(mode) { |
32 | case CLOCK_EVT_MODE_PERIODIC: | 32 | case CLOCK_EVT_MODE_PERIODIC: |
@@ -55,7 +55,7 @@ static void init_pit_timer(enum clock_event_mode mode, | |||
55 | /* Nothing to do here */ | 55 | /* Nothing to do here */ |
56 | break; | 56 | break; |
57 | } | 57 | } |
58 | spin_unlock(&i8253_lock); | 58 | raw_spin_unlock(&i8253_lock); |
59 | } | 59 | } |
60 | 60 | ||
61 | /* | 61 | /* |
@@ -65,10 +65,10 @@ static void init_pit_timer(enum clock_event_mode mode, | |||
65 | */ | 65 | */ |
66 | static int pit_next_event(unsigned long delta, struct clock_event_device *evt) | 66 | static int pit_next_event(unsigned long delta, struct clock_event_device *evt) |
67 | { | 67 | { |
68 | spin_lock(&i8253_lock); | 68 | raw_spin_lock(&i8253_lock); |
69 | outb_p(delta & 0xff , PIT_CH0); /* LSB */ | 69 | outb_p(delta & 0xff , PIT_CH0); /* LSB */ |
70 | outb(delta >> 8 , PIT_CH0); /* MSB */ | 70 | outb(delta >> 8 , PIT_CH0); /* MSB */ |
71 | spin_unlock(&i8253_lock); | 71 | raw_spin_unlock(&i8253_lock); |
72 | 72 | ||
73 | return 0; | 73 | return 0; |
74 | } | 74 | } |
@@ -137,7 +137,7 @@ static cycle_t pit_read(struct clocksource *cs) | |||
137 | static int old_count; | 137 | static int old_count; |
138 | static u32 old_jifs; | 138 | static u32 old_jifs; |
139 | 139 | ||
140 | spin_lock_irqsave(&i8253_lock, flags); | 140 | raw_spin_lock_irqsave(&i8253_lock, flags); |
141 | /* | 141 | /* |
142 | * Although our caller may have the read side of xtime_lock, | 142 | * Although our caller may have the read side of xtime_lock, |
143 | * this is now a seqlock, and we are cheating in this routine | 143 | * this is now a seqlock, and we are cheating in this routine |
@@ -183,7 +183,7 @@ static cycle_t pit_read(struct clocksource *cs) | |||
183 | old_count = count; | 183 | old_count = count; |
184 | old_jifs = jifs; | 184 | old_jifs = jifs; |
185 | 185 | ||
186 | spin_unlock_irqrestore(&i8253_lock, flags); | 186 | raw_spin_unlock_irqrestore(&i8253_lock, flags); |
187 | 187 | ||
188 | count = (LATCH - 1) - count; | 188 | count = (LATCH - 1) - count; |
189 | 189 | ||