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Subject[PATCH 2/7] perf mmap: Using the stored scope data in perf_mmap__push
Date
From: Kan Liang <kan.liang@linux.intel.com>

Using the 'start' and 'end' which are stored in struct perf_mmap to
replace the temporary 'start' and 'end'.
The temporary variables will be discarded later.

No functional change.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
tools/perf/util/mmap.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index 642b479..4cb3614 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -294,12 +294,12 @@ int perf_mmap__push(struct perf_mmap *md, bool overwrite,
if (rc < 0)
return (rc == -EAGAIN) ? 0 : -1;

- size = end - start;
+ size = md->end - md->start;

- if ((start & md->mask) + size != (end & md->mask)) {
- buf = &data[start & md->mask];
- size = md->mask + 1 - (start & md->mask);
- start += size;
+ if ((md->start & md->mask) + size != (md->end & md->mask)) {
+ buf = &data[md->start & md->mask];
+ size = md->mask + 1 - (md->start & md->mask);
+ md->start += size;

if (push(to, buf, size) < 0) {
rc = -1;
@@ -307,9 +307,9 @@ int perf_mmap__push(struct perf_mmap *md, bool overwrite,
}
}

- buf = &data[start & md->mask];
- size = end - start;
- start += size;
+ buf = &data[md->start & md->mask];
+ size = md->end - md->start;
+ md->start += size;

if (push(to, buf, size) < 0) {
rc = -1;
--
2.4.11
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