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authorKrister Johansen <kjlx@templeofstupid.com>2017-07-05 18:48:12 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-07-25 22:43:16 -0300
commit868a832918f621b7576655c00067f20326ef3931 (patch)
tree22b346df9980f3de063735e3a5087b2f9a86539a /tools/perf/Documentation
parentperf evsel: Add verbose output for sys_perf_event_open fallback (diff)
downloadlinux-dev-868a832918f621b7576655c00067f20326ef3931.tar.xz
linux-dev-868a832918f621b7576655c00067f20326ef3931.zip
perf top: Support lookup of symbols in other mount namespaces.
The perf top command needs to unshare its fs from the helper threads in order to successfully setns(2) during its symbol lookup. It also needs to impelement a force flag to ignore ownership of perf-<pid>.map files. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-6-git-send-email-kjlx@templeofstupid.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-top.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index e71d63843f45..d864ea6fd367 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -237,6 +237,10 @@ Default is to monitor all CPUS.
--hierarchy::
Enable hierarchy output.
+--force::
+ Don't do ownership validation.
+
+
INTERACTIVE PROMPTING KEYS
--------------------------