diff options
author | Jiri Olsa <jolsa@redhat.com> | 2012-01-27 15:34:21 +0100 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-02-13 23:25:38 -0200 |
commit | 2837609fefbfe8f1248bfce09d9f0b44d5eb713d (patch) | |
tree | b4fb421b4bb7944008e1657af132a1d89178e7cf /tools/perf/util/debugfs.c | |
parent | e334c726ca774d346cb7c4db487e80953a202b58 (diff) | |
download | op-kernel-dev-2837609fefbfe8f1248bfce09d9f0b44d5eb713d.zip op-kernel-dev-2837609fefbfe8f1248bfce09d9f0b44d5eb713d.tar.gz |
perf tools: Remove unused functions from debugfs object
Following debugfs object functions are not referenced
within the code:
int debugfs_valid_entry(const char *path);
int debugfs_umount(void);
int debugfs_write(const char *entry, const char *value);
int debugfs_read(const char *entry, char *buffer, size_t size);
void debugfs_force_cleanup(void);
int debugfs_make_path(const char *element, char *buffer, int size);
Removing them.
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1327674868-10486-3-git-send-email-jolsa@redhat.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/debugfs.c')
-rw-r--r-- | tools/perf/util/debugfs.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c index ffc35e7..dd8b193 100644 --- a/tools/perf/util/debugfs.c +++ b/tools/perf/util/debugfs.c @@ -15,32 +15,6 @@ static const char *debugfs_known_mountpoints[] = { 0, }; -/* use this to force a umount */ -void debugfs_force_cleanup(void) -{ - debugfs_find_mountpoint(); - debugfs_premounted = 0; - debugfs_umount(); -} - -/* construct a full path to a debugfs element */ -int debugfs_make_path(const char *element, char *buffer, int size) -{ - int len; - - if (strlen(debugfs_mountpoint) == 0) { - buffer[0] = '\0'; - return -1; - } - - len = strlen(debugfs_mountpoint) + strlen(element) + 1; - if (len >= size) - return len+1; - - snprintf(buffer, size-1, "%s/%s", debugfs_mountpoint, element); - return 0; -} - static int debugfs_found; /* find the path to the mounted debugfs */ @@ -97,17 +71,6 @@ int debugfs_valid_mountpoint(const char *debugfs) return 0; } - -int debugfs_valid_entry(const char *path) -{ - struct stat st; - - if (stat(path, &st)) - return -errno; - - return 0; -} - static void debugfs_set_tracing_events_path(const char *mountpoint) { snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s", @@ -149,107 +112,3 @@ void debugfs_set_path(const char *mountpoint) snprintf(debugfs_mountpoint, sizeof(debugfs_mountpoint), "%s", mountpoint); debugfs_set_tracing_events_path(mountpoint); } - -/* umount the debugfs */ - -int debugfs_umount(void) -{ - char umountcmd[128]; - int ret; - - /* if it was already mounted, leave it */ - if (debugfs_premounted) - return 0; - - /* make sure it's a valid mount point */ - ret = debugfs_valid_mountpoint(debugfs_mountpoint); - if (ret) - return ret; - - snprintf(umountcmd, sizeof(umountcmd), - "/bin/umount %s", debugfs_mountpoint); - return system(umountcmd); -} - -int debugfs_write(const char *entry, const char *value) -{ - char path[PATH_MAX + 1]; - int ret, count; - int fd; - - /* construct the path */ - snprintf(path, sizeof(path), "%s/%s", debugfs_mountpoint, entry); - - /* verify that it exists */ - ret = debugfs_valid_entry(path); - if (ret) - return ret; - - /* get how many chars we're going to write */ - count = strlen(value); - - /* open the debugfs entry */ - fd = open(path, O_RDWR); - if (fd < 0) - return -errno; - - while (count > 0) { - /* write it */ - ret = write(fd, value, count); - if (ret <= 0) { - if (ret == EAGAIN) - continue; - close(fd); - return -errno; - } - count -= ret; - } - - /* close it */ - close(fd); - - /* return success */ - return 0; -} - -/* - * read a debugfs entry - * returns the number of chars read or a negative errno - */ -int debugfs_read(const char *entry, char *buffer, size_t size) -{ - char path[PATH_MAX + 1]; - int ret; - int fd; - - /* construct the path */ - snprintf(path, sizeof(path), "%s/%s", debugfs_mountpoint, entry); - - /* verify that it exists */ - ret = debugfs_valid_entry(path); - if (ret) - return ret; - - /* open the debugfs entry */ - fd = open(path, O_RDONLY); - if (fd < 0) - return -errno; - - do { - /* read it */ - ret = read(fd, buffer, size); - if (ret == 0) { - close(fd); - return EOF; - } - } while (ret < 0 && errno == EAGAIN); - - /* close it */ - close(fd); - - /* make *sure* there's a null character at the end */ - buffer[ret] = '\0'; - - /* return the number of chars read */ - return ret; -} |