perf/core: Allow kernel address filter when not filtering the kernel

The so-called 'kernel' address filter can also be useful for filtering
fixed addresses in user space.  Allow that.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-6-adrian.hunter@intel.com

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2889b82fb75eb3eeb67bfd8d9473d57532c426a8..afbf388a51768d77800c39b4e88a8908cbd4533c 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -10515,8 +10515,6 @@ 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