Thread (28 messages) 28 messages, 4 authors, 2021-06-09

Re: [PATCH v2 6/8] perf auxtrace: Drop legacy __sync functions

From: Leo Yan <hidden>
Date: 2021-06-02 11:16:30
Also in: linux-perf-users, lkml

Hi Adrian,

On Wed, Jun 02, 2021 at 01:47:42PM +0300, Adrian Hunter wrote:

[...]
quoted
@@ -451,11 +445,7 @@ static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm)
 static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm)
 {
 	struct perf_event_mmap_page *pc = mm->userpg;
-#if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
The test and setup for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT is not needed anymore either.
Yes, I think there have two files should be cleaned:

  Makefile.config
  util/auxtrace.c

If still miss anything, please let me know (I remembered there have a
test case for __sync_xxx_compare_and_swap, but I cannot find it now,
so this is why I am concern if I miss anything not).

Thanks for review,
Leo

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