[tip:perfcounters/core] perf_counter: log full path names

From: Peter Zijlstra
Date: Thu Apr 09 2009 - 05:56:50 EST


Commit-ID: d3d21c412d8525eb2e208d990ab5eee5fb0fe03d
Gitweb: http://git.kernel.org/tip/d3d21c412d8525eb2e208d990ab5eee5fb0fe03d
Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
AuthorDate: Thu, 9 Apr 2009 10:53:46 +0200
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Thu, 9 Apr 2009 11:50:54 +0200

perf_counter: log full path names

Impact: fix perf-report output for /home mounted binaries, etc.

dentry_path() only provide path-names up to the mount root, which is
unsuited for out purpose, use d_path() instead.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
LKML-Reference: <20090409085524.601794134@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>


---
kernel/perf_counter.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 7efb7eb..7f9521c 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -2116,7 +2116,7 @@ static void perf_counter_mmap_event(struct perf_mmap_event *mmap_event)
name = strncpy(tmp, "//enomem", sizeof(tmp));
goto got_name;
}
- name = dentry_path(file->f_dentry, buf, PATH_MAX);
+ name = d_path(&file->f_path, buf, PATH_MAX);
if (IS_ERR(name)) {
name = strncpy(tmp, "//toolong", sizeof(tmp));
goto got_name;
--
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