mirror of
https://github.com/torvalds/linux.git
synced 2024-11-26 22:21:42 +00:00
perf: Make perf_callchain function static
And move it to core.c, because there's no caller of this function other than the one in core.c Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180107160356.28203-6-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
81df978c49
commit
8cf7e0e224
@ -178,21 +178,6 @@ put_callchain_entry(int rctx)
|
||||
put_recursion_context(this_cpu_ptr(callchain_recursion), rctx);
|
||||
}
|
||||
|
||||
struct perf_callchain_entry *
|
||||
perf_callchain(struct perf_event *event, struct pt_regs *regs)
|
||||
{
|
||||
bool kernel = !event->attr.exclude_callchain_kernel;
|
||||
bool user = !event->attr.exclude_callchain_user;
|
||||
/* Disallow cross-task user callchains. */
|
||||
bool crosstask = event->ctx->task && event->ctx->task != current;
|
||||
const u32 max_stack = event->attr.sample_max_stack;
|
||||
|
||||
if (!kernel && !user)
|
||||
return NULL;
|
||||
|
||||
return get_perf_callchain(regs, 0, kernel, user, max_stack, crosstask, true);
|
||||
}
|
||||
|
||||
struct perf_callchain_entry *
|
||||
get_perf_callchain(struct pt_regs *regs, u32 init_nr, bool kernel, bool user,
|
||||
u32 max_stack, bool crosstask, bool add_mark)
|
||||
|
@ -5980,6 +5980,22 @@ static u64 perf_virt_to_phys(u64 virt)
|
||||
return phys_addr;
|
||||
}
|
||||
|
||||
static struct perf_callchain_entry *
|
||||
perf_callchain(struct perf_event *event, struct pt_regs *regs)
|
||||
{
|
||||
bool kernel = !event->attr.exclude_callchain_kernel;
|
||||
bool user = !event->attr.exclude_callchain_user;
|
||||
/* Disallow cross-task user callchains. */
|
||||
bool crosstask = event->ctx->task && event->ctx->task != current;
|
||||
const u32 max_stack = event->attr.sample_max_stack;
|
||||
|
||||
if (!kernel && !user)
|
||||
return NULL;
|
||||
|
||||
return get_perf_callchain(regs, 0, kernel, user,
|
||||
max_stack, crosstask, true);
|
||||
}
|
||||
|
||||
void perf_prepare_sample(struct perf_event_header *header,
|
||||
struct perf_sample_data *data,
|
||||
struct perf_event *event,
|
||||
|
@ -201,10 +201,6 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
|
||||
|
||||
DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
|
||||
|
||||
/* Callchain handling */
|
||||
extern struct perf_callchain_entry *
|
||||
perf_callchain(struct perf_event *event, struct pt_regs *regs);
|
||||
|
||||
static inline int get_recursion_context(int *recursion)
|
||||
{
|
||||
int rctx;
|
||||
|
Loading…
Reference in New Issue
Block a user