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authorPeter Zijlstra <peterz@infradead.org>2020-10-30 12:14:21 +0100
committerPeter Zijlstra <peterz@infradead.org>2020-11-09 18:12:34 +0100
commit76a4efa80900fc40e0fdf243b42aec9fb8c35d24 (patch)
treee71668f6517452f1f7c13aac88a9dabab3f47b94 /include/linux/perf_event.h
parentperf: Optimize get_recursion_context() (diff)
downloadlinux-dev-76a4efa80900fc40e0fdf243b42aec9fb8c35d24.tar.xz
linux-dev-76a4efa80900fc40e0fdf243b42aec9fb8c35d24.zip
perf/arch: Remove perf_sample_data::regs_user_copy
struct perf_sample_data lives on-stack, we should be careful about it's size. Furthermore, the pt_regs copy in there is only because x86_64 is a trainwreck, solve it differently. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Link: https://lkml.kernel.org/r/20201030151955.258178461@infradead.org
Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index b775ae0a8c87..96450f6fb1de 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1022,13 +1022,7 @@ struct perf_sample_data {
struct perf_callchain_entry *callchain;
u64 aux_size;
- /*
- * regs_user may point to task_pt_regs or to regs_user_copy, depending
- * on arch details.
- */
struct perf_regs regs_user;
- struct pt_regs regs_user_copy;
-
struct perf_regs regs_intr;
u64 stack_user_size;