diff options
Diffstat (limited to 'kernel/events/core.c')
| -rw-r--r-- | kernel/events/core.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 57c7197838db..cfde994ce61c 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -839,7 +839,7 @@ static DEFINE_PER_CPU(struct list_head, cgrp_cpuctx_list); */ static void perf_cgroup_switch(struct task_struct *task, int mode) { - struct perf_cpu_context *cpuctx; + struct perf_cpu_context *cpuctx, *tmp; struct list_head *list; unsigned long flags; @@ -850,7 +850,7 @@ static void perf_cgroup_switch(struct task_struct *task, int mode) local_irq_save(flags); list = this_cpu_ptr(&cgrp_cpuctx_list); - list_for_each_entry(cpuctx, list, cgrp_cpuctx_entry) { + list_for_each_entry_safe(cpuctx, tmp, list, cgrp_cpuctx_entry) { WARN_ON_ONCE(cpuctx->ctx.nr_cgroups == 0); perf_ctx_lock(cpuctx, cpuctx->task_ctx); @@ -6746,7 +6746,6 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size, unsigned long sp; unsigned int rem; u64 dyn_size; - mm_segment_t fs; /* * We dump: @@ -6764,9 +6763,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size, /* Data. */ sp = perf_user_stack_pointer(regs); - fs = force_uaccess_begin(); rem = __output_copy_user(handle, (void *) sp, dump_size); - force_uaccess_end(fs); dyn_size = dump_size - rem; perf_output_skip(handle, rem); @@ -10531,8 +10528,6 @@ perf_event_parse_addr_filter(struct perf_event *event, char *fstr, */ if (state == IF_STATE_END) { ret = -EINVAL; - if (kernel && event->attr.exclude_kernel) - goto fail; /* * ACTION "filter" must have a non-zero length region @@ -10574,8 +10569,11 @@ perf_event_parse_addr_filter(struct perf_event *event, char *fstr, } /* ready to consume more filters */ + kfree(filename); + filename = NULL; state = IF_STATE_ACTION; filter = NULL; + kernel = 0; } } |