From: Jiri Olsa <jolsa@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Adrian Hunter <adrian.hunter@intel.com>,
Andi Kleen <ak@linux.intel.com>,
Stephane Eranian <eranian@google.com>,
Alexey Budankov <alexey.budankov@linux.intel.com>
Subject: [PATCH 06/20] perf data: Make check_backup work over directories
Date: Sun, 24 Feb 2019 20:06:42 +0100 [thread overview]
Message-ID: <20190224190656.30163-7-jolsa@kernel.org> (raw)
In-Reply-To: <20190224190656.30163-1-jolsa@kernel.org>
Changing check_backup to call rm_rf_perf_data instead of unlink to
work over directory paths. Also moving the call earlier in the code,
before we fork for file/dir, so it can backup also directory data.
Link: http://lkml.kernel.org/n/tip-j4lwm20en1yk1hsaqb8zpxkr@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/data.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index e16d06ed1100..bbf9a299615e 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -37,12 +37,15 @@ static int check_backup(struct perf_data *data)
{
struct stat st;
+ if (perf_data__is_read(data))
+ return 0;
+
if (!stat(data->path, &st) && st.st_size) {
/* TODO check errors properly */
char oldname[PATH_MAX];
snprintf(oldname, sizeof(oldname), "%s.old",
data->path);
- unlink(oldname);
+ rm_rf_perf_data(oldname);
rename(data->path, oldname);
}
@@ -95,9 +98,6 @@ static int open_file_write(struct perf_data *data)
int fd;
char sbuf[STRERR_BUFSIZE];
- if (check_backup(data))
- return -1;
-
fd = open(data->file.path, O_CREAT|O_RDWR|O_TRUNC|O_CLOEXEC,
S_IRUSR|S_IWUSR);
@@ -141,6 +141,9 @@ int perf_data__open(struct perf_data *data)
if (!data->path)
data->path = "perf.data";
+ if (check_backup(data))
+ return -1;
+
return open_file_dup(data);
}
--
2.17.2
next prev parent reply other threads:[~2019-02-24 19:07 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-24 19:06 [PATCHv3 00/20] perf record: Add support to store data in directory Jiri Olsa
2019-02-24 19:06 ` [PATCH 01/20] perf tools: Add depth checking to rm_rf Jiri Olsa
2019-02-28 8:00 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 02/20] perf tools: Add pattern name " Jiri Olsa
2019-02-28 8:00 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 03/20] perf tools: Add rm_rf_perf_data function Jiri Olsa
2019-02-28 8:01 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 04/20] perf data: Move size to struct perf_data_file Jiri Olsa
2019-02-24 19:06 ` [PATCH 05/20] perf data: Add global path holder Jiri Olsa
2019-02-24 19:06 ` Jiri Olsa [this message]
2019-02-28 8:02 ` [tip:perf/core] perf data: Make check_backup work over directories tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 07/20] perf data: Fail check_backup in case of error Jiri Olsa
2019-02-28 8:02 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 08/20] perf data: Add perf_data__(create_dir|close_dir) functions Jiri Olsa
2019-02-28 8:03 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 09/20] perf data: Add perf_data__open_dir_data function Jiri Olsa
2019-02-28 8:04 ` [tip:perf/core] " tip-bot for Jiri Olsa
2019-02-24 19:06 ` [PATCH 10/20] perf data: Add directory support Jiri Olsa
2019-02-25 13:45 ` Arnaldo Carvalho de Melo
2019-02-25 13:56 ` Jiri Olsa
2019-02-25 15:07 ` Arnaldo Carvalho de Melo
2019-02-25 15:36 ` Jiri Olsa
2019-02-24 19:06 ` [PATCH 11/20] perf data: Don't store auxtrace index for directory data file Jiri Olsa
2019-02-24 19:06 ` [PATCH 12/20] perf data: Add perf_data__update_dir function Jiri Olsa
2019-02-24 19:06 ` [PATCH 13/20] perf data: Make perf_data__size to work over directory Jiri Olsa
2019-02-24 19:06 ` [PATCH 14/20] perf header: Add DIR_FORMAT feature to describe directory data Jiri Olsa
2019-02-24 19:06 ` [PATCH 15/20] perf session: Add process callback to reader object Jiri Olsa
2019-02-24 19:06 ` [PATCH 16/20] perf session: Add __perf_session__process_dir_events function Jiri Olsa
2019-02-24 19:06 ` [PATCH 17/20] perf session: Add path to reader object Jiri Olsa
2019-02-24 19:06 ` [PATCH 18/20] perf record: Add --dir option to store data in directory Jiri Olsa
2019-02-24 19:06 ` [PATCH 19/20] perf record: Add --output-dir " Jiri Olsa
2019-02-24 19:06 ` [PATCH 20/20] perf record: Describe perf.data directory format Jiri Olsa
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