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| author |   Krister Johansen <kjlx@templeofstupid.com> | 2017-07-05 18:48:10 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-18 23:14:10 -0300 |
| commit | 544abd44c7064c8a58a6bd2073d757f6b91d98c5 (patch) | |
| tree | faa9e5d4c4b86067f4b5cd9f8200010a726a314d /tools/perf/util/namespaces.h | |
| parent | perf maps: Lookup maps in both intitial mountns and inner mountns. (diff) | |
| download | linux-dev-544abd44c7064c8a58a6bd2073d757f6b91d98c5.tar.xz linux-dev-544abd44c7064c8a58a6bd2073d757f6b91d98c5.zip | |
perf probe: Allow placing uprobes in alternate namespaces.
Teaches perf how to place a uprobe on a file that's in a different mount
namespace. The user must add the probe using the --target-ns argument
to perf probe. Once it has been placed, it may be recorded against
without further namespace-specific commands.
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: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
[ PPC build fixed by Ravi: ]
Link: http://lkml.kernel.org/r/1500287542-6219-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
[ Fix !HAVE_DWARF_SUPPORT build ]
Link: http://lkml.kernel.org/r/1499305693-1599-4-git-send-email-kjlx@templeofstupid.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/namespaces.h')
| -rw-r--r-- | tools/perf/util/namespaces.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/namespaces.h b/tools/perf/util/namespaces.h index f19aa41119ae..05d82601c9a6 100644 --- a/tools/perf/util/namespaces.h +++ b/tools/perf/util/namespaces.h @@ -49,6 +49,8 @@ void nsinfo__put(struct nsinfo *nsi); void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc); void nsinfo__mountns_exit(struct nscookie *nc); +char *nsinfo__realpath(const char *path, struct nsinfo *nsi); + static inline void __nsinfo__zput(struct nsinfo **nsip) { if (nsip) { |