it breaks the build.
+++ /dev/null
-From 2c5947ff54f89f7b46d25d6d73476037af4a9256 Mon Sep 17 00:00:00 2001
-From: Arnaldo Carvalho de Melo <acme@redhat.com>
-Date: Tue, 29 Jan 2019 15:12:34 +0100
-Subject: perf trace: Support multiple "vfs_getname" probes
-
-[ Upstream commit 6ab3bc240ade47a0f52bc16d97edd9accbe0024e ]
-
-With a suitably defined "probe:vfs_getname" probe, 'perf trace' can
-"beautify" its output, so syscalls like open() or openat() can print the
-"filename" argument instead of just its hex address, like:
-
- $ perf trace -e open -- touch /dev/null
- [...]
- 0.590 ( 0.014 ms): touch/18063 open(filename: /dev/null, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
- [...]
-
-The output without such beautifier looks like:
-
- 0.529 ( 0.011 ms): touch/18075 open(filename: 0xc78cf288, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
-
-However, when the vfs_getname probe expands to multiple probes and it is
-not the first one that is hit, the beautifier fails, as following:
-
- 0.326 ( 0.010 ms): touch/18072 open(filename: , flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
-
-Fix it by hooking into all the expanded probes (inlines), now, for instance:
-
- [root@quaco ~]# perf probe -l
- probe:vfs_getname (on getname_flags:73@fs/namei.c with pathname)
- probe:vfs_getname_1 (on getname_flags:73@fs/namei.c with pathname)
- [root@quaco ~]# perf trace -e open* sleep 1
- 0.010 ( 0.005 ms): sleep/5588 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: RDONLY|CLOEXEC) = 3
- 0.029 ( 0.006 ms): sleep/5588 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: RDONLY|CLOEXEC) = 3
- 0.194 ( 0.008 ms): sleep/5588 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: RDONLY|CLOEXEC) = 3
- [root@quaco ~]#
-
-Works, further verified with:
-
- [root@quaco ~]# perf test vfs
- 65: Use vfs_getname probe to get syscall args filenames : Ok
- 66: Add vfs_getname probe to get syscall args filenames : Ok
- 67: Check open filename arg using perf trace + vfs_getname: Ok
- [root@quaco ~]#
-
-Reported-by: Michael Petlan <mpetlan@redhat.com>
-Tested-by: Michael Petlan <mpetlan@redhat.com>
-Cc: Adrian Hunter <adrian.hunter@intel.com>
-Cc: Jiri Olsa <jolsa@redhat.com>
-Cc: Namhyung Kim <namhyung@kernel.org>
-Link: https://lkml.kernel.org/n/tip-mv8kolk17xla1smvmp3qabv1@git.kernel.org
-Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- tools/perf/builtin-trace.c | 25 ++++++++++++++++++-------
- 1 file changed, 18 insertions(+), 7 deletions(-)
-
-diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
-index da8afc121118..039517c61c75 100644
---- a/tools/perf/builtin-trace.c
-+++ b/tools/perf/builtin-trace.c
-@@ -2403,19 +2403,30 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
-
- static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
- {
-- struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
-+ bool found = false;
-+ struct perf_evsel *evsel, *tmp;
-+ struct parse_events_error err = { .idx = 0, };
-+ int ret = parse_events(evlist, "probe:vfs_getname*", &err);
-
-- if (IS_ERR(evsel))
-+ if (ret)
- return false;
-
-- if (perf_evsel__field(evsel, "pathname") == NULL) {
-+ evlist__for_each_entry_safe(evlist, evsel, tmp) {
-+ if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname"))
-+ continue;
-+
-+ if (perf_evsel__field(evsel, "pathname")) {
-+ evsel->handler = trace__vfs_getname;
-+ found = true;
-+ continue;
-+ }
-+
-+ list_del_init(&evsel->node);
-+ evsel->evlist = NULL;
- perf_evsel__delete(evsel);
-- return false;
- }
-
-- evsel->handler = trace__vfs_getname;
-- perf_evlist__add(evlist, evsel);
-- return true;
-+ return found;
- }
-
- static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
---
-2.19.1
-
dmaengine-dmatest-abort-test-in-case-of-mapping-erro.patch
s390-qeth-fix-use-after-free-in-error-path.patch
perf-symbols-filter-out-hidden-symbols-from-labels.patch
-perf-trace-support-multiple-vfs_getname-probes.patch
mips-remove-function-size-check-in-get_frame_info.patch
input-wacom_serial4-add-support-for-wacom-artpad-ii-tablet.patch
input-elan_i2c-add-id-for-touchpad-found-in-lenovo-s21e-20.patch
+++ /dev/null
-From 5cc31b3875f48286a9e60f4362898bf9533c2199 Mon Sep 17 00:00:00 2001
-From: Arnaldo Carvalho de Melo <acme@redhat.com>
-Date: Tue, 29 Jan 2019 15:12:34 +0100
-Subject: perf trace: Support multiple "vfs_getname" probes
-
-[ Upstream commit 6ab3bc240ade47a0f52bc16d97edd9accbe0024e ]
-
-With a suitably defined "probe:vfs_getname" probe, 'perf trace' can
-"beautify" its output, so syscalls like open() or openat() can print the
-"filename" argument instead of just its hex address, like:
-
- $ perf trace -e open -- touch /dev/null
- [...]
- 0.590 ( 0.014 ms): touch/18063 open(filename: /dev/null, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
- [...]
-
-The output without such beautifier looks like:
-
- 0.529 ( 0.011 ms): touch/18075 open(filename: 0xc78cf288, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
-
-However, when the vfs_getname probe expands to multiple probes and it is
-not the first one that is hit, the beautifier fails, as following:
-
- 0.326 ( 0.010 ms): touch/18072 open(filename: , flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: IRUGO|IWUGO) = 3
-
-Fix it by hooking into all the expanded probes (inlines), now, for instance:
-
- [root@quaco ~]# perf probe -l
- probe:vfs_getname (on getname_flags:73@fs/namei.c with pathname)
- probe:vfs_getname_1 (on getname_flags:73@fs/namei.c with pathname)
- [root@quaco ~]# perf trace -e open* sleep 1
- 0.010 ( 0.005 ms): sleep/5588 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: RDONLY|CLOEXEC) = 3
- 0.029 ( 0.006 ms): sleep/5588 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: RDONLY|CLOEXEC) = 3
- 0.194 ( 0.008 ms): sleep/5588 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: RDONLY|CLOEXEC) = 3
- [root@quaco ~]#
-
-Works, further verified with:
-
- [root@quaco ~]# perf test vfs
- 65: Use vfs_getname probe to get syscall args filenames : Ok
- 66: Add vfs_getname probe to get syscall args filenames : Ok
- 67: Check open filename arg using perf trace + vfs_getname: Ok
- [root@quaco ~]#
-
-Reported-by: Michael Petlan <mpetlan@redhat.com>
-Tested-by: Michael Petlan <mpetlan@redhat.com>
-Cc: Adrian Hunter <adrian.hunter@intel.com>
-Cc: Jiri Olsa <jolsa@redhat.com>
-Cc: Namhyung Kim <namhyung@kernel.org>
-Link: https://lkml.kernel.org/n/tip-mv8kolk17xla1smvmp3qabv1@git.kernel.org
-Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- tools/perf/builtin-trace.c | 25 ++++++++++++++++++-------
- 1 file changed, 18 insertions(+), 7 deletions(-)
-
-diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
-index 0fd8bfb77f65..6e568d361edf 100644
---- a/tools/perf/builtin-trace.c
-+++ b/tools/perf/builtin-trace.c
-@@ -2059,19 +2059,30 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
-
- static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
- {
-- struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
-+ bool found = false;
-+ struct perf_evsel *evsel, *tmp;
-+ struct parse_events_error err = { .idx = 0, };
-+ int ret = parse_events(evlist, "probe:vfs_getname*", &err);
-
-- if (IS_ERR(evsel))
-+ if (ret)
- return false;
-
-- if (perf_evsel__field(evsel, "pathname") == NULL) {
-+ evlist__for_each_entry_safe(evlist, evsel, tmp) {
-+ if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname"))
-+ continue;
-+
-+ if (perf_evsel__field(evsel, "pathname")) {
-+ evsel->handler = trace__vfs_getname;
-+ found = true;
-+ continue;
-+ }
-+
-+ list_del_init(&evsel->node);
-+ evsel->evlist = NULL;
- perf_evsel__delete(evsel);
-- return false;
- }
-
-- evsel->handler = trace__vfs_getname;
-- perf_evlist__add(evlist, evsel);
-- return true;
-+ return found;
- }
-
- static struct perf_evsel *perf_evsel__new_pgfault(u64 config)
---
-2.19.1
-
netfilter-nf_nat-skip-nat-clash-resolution-for-same-.patch
s390-qeth-fix-use-after-free-in-error-path.patch
perf-symbols-filter-out-hidden-symbols-from-labels.patch
-perf-trace-support-multiple-vfs_getname-probes.patch
mips-loongson-introduce-and-use-loongson_llsc_mb.patch
mips-remove-function-size-check-in-get_frame_info.patch
fs-ratelimit-__find_get_block_slow-failure-message.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
