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Subject[PATCH 2/6] perf session: Get rid of file_size variable
Date
It's not needed and removing it makes the code little
more simple for upcoming changes.

It's safe to replace file_size with data_size, because
perf_data__size value is never smaller than data_offset
+ data_size.

Link: http://lkml.kernel.org/n/tip-ocz7zwwkkx11v0mkxrtcddih@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/session.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ad14192db811..c8c2069fb01e 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1825,7 +1825,6 @@ static int __perf_session__process_events(struct perf_session *session)
struct ordered_events *oe = &session->ordered_events;
struct perf_tool *tool = session->tool;
int fd = perf_data__fd(session->data);
- u64 file_size = perf_data__size(session->data);
u64 data_offset = session->header.data_offset;
u64 data_size = session->header.data_size;
u64 head, page_offset, file_offset, file_pos, size;
@@ -1845,14 +1844,13 @@ static int __perf_session__process_events(struct perf_session *session)
if (data_size == 0)
goto out;

- if (data_offset + data_size < file_size)
- file_size = data_offset + data_size;
+ ui_progress__init_size(&prog, data_size, "Processing events...");

- ui_progress__init_size(&prog, file_size, "Processing events...");
+ data_size += data_offset;

mmap_size = MMAP_SIZE;
- if (mmap_size > file_size) {
- mmap_size = file_size;
+ if (mmap_size > data_size) {
+ mmap_size = data_size;
session->one_mmap = true;
}

@@ -1917,7 +1915,7 @@ static int __perf_session__process_events(struct perf_session *session)
if (session_done())
goto out;

- if (file_pos < file_size)
+ if (file_pos < data_size)
goto more;

out:
--
2.17.2
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