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Merge commit 'v2.6.38-rc8' into perf/core

Browse source 
Merge reason: Merge latest fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2011-03-08 17:21:49 +01:00
commit 86cb2ec7b2
355 changed files with 2843 additions and 1471 deletions
Download patch file Download diff file Expand all files Collapse all files

7
kernel/cpuset.c
View file

@ -1575,8 +1575,10 @@ static int cpuset_write_resmask(struct cgroup *cgrp, struct cftype *cft,
return -ENODEV;
trialcs = alloc_trial_cpuset(cs);
if (!trialcs)
return -ENOMEM;
if (!trialcs) {
retval = -ENOMEM;
goto out;
}
switch (cft->private) {
case FILE_CPULIST:
@ -1591,6 +1593,7 @@ static int cpuset_write_resmask(struct cgroup *cgrp, struct cftype *cft,
}
free_trial_cpuset(trialcs);
out:
cgroup_unlock();
return retval;
}

6
kernel/ptrace.c
View file

@ -163,7 +163,7 @@ bool ptrace_may_access(struct task_struct *task, unsigned int mode)
return !err;
}
int ptrace_attach(struct task_struct *task)
static int ptrace_attach(struct task_struct *task)
{
int retval;
@ -219,7 +219,7 @@ out:
* Performs checks and sets PT_PTRACED.
* Should be used by all ptrace implementations for PTRACE_TRACEME.
*/
int ptrace_traceme(void)
static int ptrace_traceme(void)
{
int ret = -EPERM;
@ -293,7 +293,7 @@ static bool __ptrace_detach(struct task_struct *tracer, struct task_struct *p)
return false;
}
int ptrace_detach(struct task_struct *child, unsigned int data)
static int ptrace_detach(struct task_struct *child, unsigned int data)
{
bool dead = false;

10
kernel/time/tick-broadcast.c
View file

@ -600,4 +600,14 @@ int tick_broadcast_oneshot_active(void)
return tick_broadcast_device.mode == TICKDEV_MODE_ONESHOT;
}
/*
* Check whether the broadcast device supports oneshot.
*/
bool tick_broadcast_oneshot_available(void)
{
struct clock_event_device *bc = tick_broadcast_device.evtdev;
return bc ? bc->features & CLOCK_EVT_FEAT_ONESHOT : false;
}
#endif

6
kernel/time/tick-common.c
View file

@ -51,7 +51,11 @@ int tick_is_oneshot_available(void)
{
struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev);
return dev && (dev->features & CLOCK_EVT_FEAT_ONESHOT);
if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT))
return 0;
if (!(dev->features & CLOCK_EVT_FEAT_C3STOP))
return 1;
return tick_broadcast_oneshot_available();
}
/*

3
kernel/time/tick-internal.h
View file

@ -36,6 +36,7 @@ extern void tick_shutdown_broadcast_oneshot(unsigned int *cpup);
extern int tick_resume_broadcast_oneshot(struct clock_event_device *bc);
extern int tick_broadcast_oneshot_active(void);
extern void tick_check_oneshot_broadcast(int cpu);
bool tick_broadcast_oneshot_available(void);
# else /* BROADCAST */
static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
{
@ -46,6 +47,7 @@ static inline void tick_broadcast_switch_to_oneshot(void) { }
static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { }
static inline int tick_broadcast_oneshot_active(void) { return 0; }
static inline void tick_check_oneshot_broadcast(int cpu) { }
static inline bool tick_broadcast_oneshot_available(void) { return true; }
# endif /* !BROADCAST */
#else /* !ONESHOT */
@ -76,6 +78,7 @@ static inline int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
return 0;
}
static inline int tick_broadcast_oneshot_active(void) { return 0; }
static inline bool tick_broadcast_oneshot_available(void) { return false; }
#endif /* !TICK_ONESHOT */
/*

16
kernel/trace/blktrace.c
View file

@ -1827,21 +1827,5 @@ void blk_fill_rwbs(char *rwbs, u32 rw, int bytes)
rwbs[i] = '\0';
}
void blk_fill_rwbs_rq(char *rwbs, struct request *rq)
{
int rw = rq->cmd_flags & 0x03;
int bytes;
if (rq->cmd_flags & REQ_DISCARD)
rw |= REQ_DISCARD;
if (rq->cmd_flags & REQ_SECURE)
rw |= REQ_SECURE;
bytes = blk_rq_bytes(rq);
blk_fill_rwbs(rwbs, rw, bytes);
}
#endif /* CONFIG_EVENT_TRACING */