From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Alexey Budankov <alexey.budankov@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 22/37] perf data: Make check_backup work over directories
Date: Mon, 25 Feb 2019 18:20:20 -0300 [thread overview]
Message-ID: <20190225212035.24781-23-acme@kernel.org> (raw)
In-Reply-To: <20190225212035.24781-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
Change check_backup() to call rm_rf_perf_data() instead of unlink() to
work over directory paths.
Also move the call earlier in the code, before we fork for file/dir, so
it can backup also directory data.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20190224190656.30163-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
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);
}
--
2.20.1
next prev parent reply other threads:[~2019-02-25 21:54 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-25 21:19 [GIT PULL] perf/core improvements and fixes Arnaldo Carvalho de Melo
2019-02-25 21:19 ` [PATCH 01/37] perf annotate: Fix getting source line failure Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 02/37] perf thread-stack: Improve thread_stack__no_call_return() Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 03/37] perf thread-stack: Hide x86 retpolines Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 04/37] perf scripts python: exported-sql-viewer.py: Fix missing shebang Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 05/37] perf scripts python: exported-sql-viewer.py: Remove leftover debugging prints Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 06/37] perf scripts python: exported-sql-viewer.py: Hide Call Graph option if no calls table Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 07/37] perf scripts python: exported-sql-viewer.py: Move column headers Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 08/37] perf scripts python: exported-sql-viewer.py: Factor out ReportDialogBase Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 09/37] perf scripts python: exported-sql-viewer.py: Factor out ReportVars Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 10/37] perf scripts python: exported-sql-viewer.py: Move report name into ReportVars Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 11/37] perf scripts python: exported-sql-viewer.py: Create new dialog data item classes Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 12/37] perf scripts python: exported-sql-viewer.py: Remove SQLTableDialogDataItem Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 13/37] perf scripts python: exported-sql-viewer.py: Remove no selection error Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 14/37] perf scripts python: exported-sql-viewer.py: Add top calls report Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 15/37] perf: Copy parent's address filter offsets on clone Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 16/37] perf, pt, coresight: Fix address filters for vmas with non-zero offset Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 17/37] perf data: Move size to struct perf_data_file Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 18/37] perf data: Add global path holder Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 19/37] perf tools: Add depth checking to rm_rf Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 20/37] perf tools: Add pattern name " Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 21/37] perf tools: Add rm_rf_perf_data function Arnaldo Carvalho de Melo
2019-02-25 21:20 ` Arnaldo Carvalho de Melo [this message]
2019-02-25 21:20 ` [PATCH 23/37] perf data: Fail check_backup in case of error Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 24/37] perf data: Add perf_data__(create_dir|close_dir) functions Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 25/37] perf data: Add perf_data__open_dir_data function Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 26/37] perf script: Handle missing fields with -F + Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 27/37] perf tools: Add perf_exe() helper to find perf binary Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 28/37] perf script python: Add Python3 support to netdev-times.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 29/37] perf script python: Add Python3 support to failed-syscalls-by-pid.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 30/37] perf script python: Add Python3 support to mem-phys-addr.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 31/37] perf script python: Add Python3 support to net_dropmonitor.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 32/37] perf script python: Add Python3 support to powerpc-hcalls.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 33/37] perf script python: Add Python3 support to sctop.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 34/37] perf script python: Add Python3 support to stackcollapse.py Arnaldo Carvalho de Melo
2019-02-26 11:49 ` Paolo Bonzini
2019-02-25 21:20 ` [PATCH 35/37] perf script python: Add Python3 support to stat-cpi.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 36/37] perf script python: Add Python3 support to syscall-counts.py Arnaldo Carvalho de Melo
2019-02-25 21:20 ` [PATCH 37/37] perf script python: Add Python3 support to syscall-counts-by-pid.py Arnaldo Carvalho de Melo
2019-02-28 7:31 ` [GIT PULL] perf/core improvements and fixes Ingo Molnar
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