perf, tools: Use correct articles in comments
Some of the comments in the perf events code use articles incorrectly, using 'a' for words beginning with a vowel sound, where 'an' should be used. Signed-off-by: Tobias Tefke <tobias.tefke@tutanota.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@kernel.org Cc: alexander.shishkin@linux.intel.com Cc: jolsa@redhat.com Cc: namhyung@kernel.org Link: http://lkml.kernel.org/r/20180709105715.22938-1-tobias.tefke@tutanota.com [ Fix a few more perf related 'a event' typo fixes from all around the kernel and tooling tree. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -1469,7 +1469,7 @@ static int collect_events(struct perf_event *group, int max_count,
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}
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}
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/*
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/*
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* Add a event to the PMU.
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* Add an event to the PMU.
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* If all events are not already frozen, then we disable and
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* If all events are not already frozen, then we disable and
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* re-enable the PMU in order to get hw_perf_enable to do the
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* re-enable the PMU in order to get hw_perf_enable to do the
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* actual work of reconfiguring the PMU.
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* actual work of reconfiguring the PMU.
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@ -1548,7 +1548,7 @@ nocheck:
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}
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}
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/*
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/*
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* Remove a event from the PMU.
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* Remove an event from the PMU.
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*/
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*/
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static void power_pmu_del(struct perf_event *event, int ef_flags)
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static void power_pmu_del(struct perf_event *event, int ef_flags)
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{
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{
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@ -1742,7 +1742,7 @@ static int power_pmu_commit_txn(struct pmu *pmu)
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/*
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/*
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* Return 1 if we might be able to put event on a limited PMC,
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* Return 1 if we might be able to put event on a limited PMC,
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* or 0 if not.
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* or 0 if not.
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* A event can only go on a limited PMC if it counts something
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* An event can only go on a limited PMC if it counts something
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* that a limited PMC can count, doesn't require interrupts, and
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* that a limited PMC can count, doesn't require interrupts, and
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* doesn't exclude any processor mode.
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* doesn't exclude any processor mode.
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*/
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*/
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@ -490,7 +490,7 @@ struct perf_addr_filters_head {
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};
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};
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/**
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/**
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* enum perf_event_state - the states of a event
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* enum perf_event_state - the states of an event:
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*/
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*/
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enum perf_event_state {
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enum perf_event_state {
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PERF_EVENT_STATE_DEAD = -4,
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PERF_EVENT_STATE_DEAD = -4,
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@ -1656,7 +1656,7 @@ perf_event_groups_next(struct perf_event *event)
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typeof(*event), group_node))
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typeof(*event), group_node))
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/*
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/*
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* Add a event from the lists for its context.
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* Add an event from the lists for its context.
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* Must be called with ctx->mutex and ctx->lock held.
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* Must be called with ctx->mutex and ctx->lock held.
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*/
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*/
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static void
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static void
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@ -1844,7 +1844,7 @@ static void perf_group_attach(struct perf_event *event)
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}
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}
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/*
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/*
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* Remove a event from the lists for its context.
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* Remove an event from the lists for its context.
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* Must be called with ctx->mutex and ctx->lock held.
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* Must be called with ctx->mutex and ctx->lock held.
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*/
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*/
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static void
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static void
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@ -2148,7 +2148,7 @@ static void __perf_event_disable(struct perf_event *event,
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}
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}
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/*
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/*
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* Disable a event.
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* Disable an event.
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*
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*
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* If event->ctx is a cloned context, callers must make sure that
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* If event->ctx is a cloned context, callers must make sure that
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* every task struct that event->ctx->task could possibly point to
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* every task struct that event->ctx->task could possibly point to
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@ -2677,7 +2677,7 @@ static void __perf_event_enable(struct perf_event *event,
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}
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}
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/*
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/*
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* Enable a event.
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* Enable an event.
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*
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*
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* If event->ctx is a cloned context, callers must make sure that
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* If event->ctx is a cloned context, callers must make sure that
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* every task struct that event->ctx->task could possibly point to
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* every task struct that event->ctx->task could possibly point to
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@ -2755,7 +2755,7 @@ static int __perf_event_stop(void *info)
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* events will refuse to restart because of rb::aux_mmap_count==0,
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* events will refuse to restart because of rb::aux_mmap_count==0,
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* see comments in perf_aux_output_begin().
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* see comments in perf_aux_output_begin().
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*
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*
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* Since this is happening on a event-local CPU, no trace is lost
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* Since this is happening on an event-local CPU, no trace is lost
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* while restarting.
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* while restarting.
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*/
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*/
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if (sd->restart)
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if (sd->restart)
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@ -4827,7 +4827,7 @@ __perf_read(struct perf_event *event, char __user *buf, size_t count)
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int ret;
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int ret;
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/*
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/*
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* Return end-of-file for a read on a event that is in
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* Return end-of-file for a read on an event that is in
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* error state (i.e. because it was pinned but it couldn't be
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* error state (i.e. because it was pinned but it couldn't be
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* scheduled on to the CPU at some point).
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* scheduled on to the CPU at some point).
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*/
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*/
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@ -9898,7 +9898,7 @@ enabled:
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}
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}
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/*
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/*
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* Allocate and initialize a event structure
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* Allocate and initialize an event structure
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*/
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*/
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static struct perf_event *
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static struct perf_event *
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perf_event_alloc(struct perf_event_attr *attr, int cpu,
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perf_event_alloc(struct perf_event_attr *attr, int cpu,
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@ -11229,7 +11229,7 @@ const struct perf_event_attr *perf_event_attrs(struct perf_event *event)
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}
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}
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/*
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/*
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* Inherit a event from parent task to child task.
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* Inherit an event from parent task to child task.
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*
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*
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* Returns:
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* Returns:
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* - valid pointer on success
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* - valid pointer on success
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@ -918,7 +918,7 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *
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EXPORT_SYMBOL_GPL(uprobe_register);
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EXPORT_SYMBOL_GPL(uprobe_register);
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/*
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/*
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* uprobe_apply - unregister a already registered probe.
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* uprobe_apply - unregister an already registered probe.
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* @inode: the file in which the probe has to be removed.
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* @inode: the file in which the probe has to be removed.
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* @offset: offset from the start of the file.
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* @offset: offset from the start of the file.
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* @uc: consumer which wants to add more or remove some breakpoints
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* @uc: consumer which wants to add more or remove some breakpoints
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@ -947,7 +947,7 @@ int uprobe_apply(struct inode *inode, loff_t offset,
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}
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}
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/*
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/*
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* uprobe_unregister - unregister a already registered probe.
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* uprobe_unregister - unregister an already registered probe.
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* @inode: the file in which the probe has to be removed.
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* @inode: the file in which the probe has to be removed.
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* @offset: offset from the start of the file.
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* @offset: offset from the start of the file.
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* @uc: identify which probe if multiple probes are colocated.
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* @uc: identify which probe if multiple probes are colocated.
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@ -1403,7 +1403,7 @@ static struct return_instance *free_ret_instance(struct return_instance *ri)
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/*
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/*
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* Called with no locks held.
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* Called with no locks held.
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* Called in context of a exiting or a exec-ing thread.
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* Called in context of an exiting or an exec-ing thread.
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*/
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*/
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void uprobe_free_utask(struct task_struct *t)
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void uprobe_free_utask(struct task_struct *t)
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{
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{
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@ -234,7 +234,7 @@ perf also supports group leader sampling using the :S specifier.
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perf record -e '{cycles,instructions}:S' ...
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perf record -e '{cycles,instructions}:S' ...
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perf report --group
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perf report --group
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Normally all events in a event group sample, but with :S only
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Normally all events in an event group sample, but with :S only
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the first event (the leader) samples, and it only reads the values of the
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the first event (the leader) samples, and it only reads the values of the
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other events in the group.
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other events in the group.
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@ -94,7 +94,7 @@ OPTIONS
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"perf report" to view group events together.
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"perf report" to view group events together.
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--filter=<filter>::
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--filter=<filter>::
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Event filter. This option should follow a event selector (-e) which
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Event filter. This option should follow an event selector (-e) which
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selects either tracepoint event(s) or a hardware trace PMU
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selects either tracepoint event(s) or a hardware trace PMU
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(e.g. Intel PT or CoreSight).
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(e.g. Intel PT or CoreSight).
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@ -153,7 +153,7 @@ OPTIONS
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--exclude-perf::
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--exclude-perf::
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Don't record events issued by perf itself. This option should follow
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Don't record events issued by perf itself. This option should follow
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a event selector (-e) which selects tracepoint event(s). It adds a
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an event selector (-e) which selects tracepoint event(s). It adds a
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filter expression 'common_pid != $PERFPID' to filters. If other
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filter expression 'common_pid != $PERFPID' to filters. If other
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'--filter' exists, the new filter expression will be combined with
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'--filter' exists, the new filter expression will be combined with
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them by '&&'.
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them by '&&'.
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