Commit-ID: fed1208841f5db92cc3bede4b1004e9e986d843e
Gitweb: http://git.kernel.org/tip/fed1208841f5db92cc3bede4b1004e9e986d843e
Author: Borislav Petkov <bp@xxxxxxx>
AuthorDate: Wed, 20 Feb 2013 16:32:27 +0100
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 15 Mar 2013 13:05:58 -0300
perf tools: Remove a write-only variable in the debugfs code
debugfs_premounted is written-to only so drop it. This functionality is
covered by debugfs_found now. Make it a bool while at it.
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1361374353-30385-2-git-send-email-bp@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/debugfs.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c
index dd8b193..e55495c 100644
--- a/tools/perf/util/debugfs.c
+++ b/tools/perf/util/debugfs.c
@@ -5,7 +5,6 @@
#include <linux/kernel.h>
#include <sys/mount.h>
-static int debugfs_premounted;
char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events";
@@ -15,7 +14,7 @@ static const char *debugfs_known_mountpoints[] = {
0,
};
-static int debugfs_found;
+static bool debugfs_found;
/* find the path to the mounted debugfs */
const char *debugfs_find_mountpoint(void)
@@ -30,7 +29,7 @@ const char *debugfs_find_mountpoint(void)
ptr = debugfs_known_mountpoints;
while (*ptr) {
if (debugfs_valid_mountpoint(*ptr) == 0) {
- debugfs_found = 1;
+ debugfs_found = true;
strcpy(debugfs_mountpoint, *ptr);
return debugfs_mountpoint;
}
@@ -52,7 +51,7 @@ const char *debugfs_find_mountpoint(void)
if (strcmp(type, "debugfs") != 0)
return NULL;
- debugfs_found = 1;
+ debugfs_found = true;
return debugfs_mountpoint;
}
@@ -82,10 +81,8 @@ static void debugfs_set_tracing_events_path(const char *mountpoint)
char *debugfs_mount(const char *mountpoint)
{
/* see if it's already mounted */
- if (debugfs_find_mountpoint()) {
- debugfs_premounted = 1;
+ if (debugfs_find_mountpoint())
goto out;
- }
/* if not mounted and no argument */
if (mountpoint == NULL) {
@@ -100,7 +97,7 @@ char *debugfs_mount(const char *mountpoint)
return NULL;
/* save the mountpoint */
- debugfs_found = 1;
+ debugfs_found = true;
strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
out:
debugfs_set_tracing_events_path(debugfs_mountpoint);
--
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