diff options
| author |   Borislav Petkov <bp@suse.de> | 2013-02-20 16:32:27 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-03-15 13:05:58 -0300 |
| commit | fed1208841f5db92cc3bede4b1004e9e986d843e (patch) | |
| tree | 7b71d0db9b3a5e3a69372b91954c519f66e927b7 /tools | |
| parent | perf tools: Fix build on non-glibc systems due to libio.h absence (diff) | |
| download | linux-dev-fed1208841f5db92cc3bede4b1004e9e986d843e.tar.xz linux-dev-fed1208841f5db92cc3bede4b1004e9e986d843e.zip | |
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@suse.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1361374353-30385-2-git-send-email-bp@alien8.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/debugfs.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c index dd8b19319c03..e55495c7823a 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); |