[PATCH 07/27] tools lib api fs: Remove debugfs, tracefs and findfs objects
From: Arnaldo Carvalho de Melo
Date: Mon Sep 14 2015 - 12:50:45 EST
From: Jiri Olsa <jolsa@xxxxxxxxxx>
We have all the functionality in fs.c, let's remove unneeded
objects.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Raphael Beamonte <raphael.beamonte@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441180605-24737-15-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/lib/api/fs/Build | 3 --
tools/lib/api/fs/debugfs.c | 77 ---------------------------------------------
tools/lib/api/fs/debugfs.h | 23 --------------
tools/lib/api/fs/findfs.c | 63 -------------------------------------
tools/lib/api/fs/findfs.h | 23 --------------
tools/lib/api/fs/tracefs.c | 78 ----------------------------------------------
tools/lib/api/fs/tracefs.h | 21 -------------
7 files changed, 288 deletions(-)
delete mode 100644 tools/lib/api/fs/debugfs.c
delete mode 100644 tools/lib/api/fs/debugfs.h
delete mode 100644 tools/lib/api/fs/findfs.c
delete mode 100644 tools/lib/api/fs/findfs.h
delete mode 100644 tools/lib/api/fs/tracefs.c
delete mode 100644 tools/lib/api/fs/tracefs.h
diff --git a/tools/lib/api/fs/Build b/tools/lib/api/fs/Build
index fa726f679b29..f4ed9629ae85 100644
--- a/tools/lib/api/fs/Build
+++ b/tools/lib/api/fs/Build
@@ -1,5 +1,2 @@
libapi-y += fs.o
libapi-y += tracing_path.o
-libapi-y += debugfs.o
-libapi-y += findfs.o
-libapi-y += tracefs.o
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
deleted file mode 100644
index c707cfb32782..000000000000
--- a/tools/lib/api/fs/debugfs.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#define _GNU_SOURCE
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <sys/vfs.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mount.h>
-#include <linux/kernel.h>
-
-#include "debugfs.h"
-#include "tracefs.h"
-
-#ifndef DEBUGFS_DEFAULT_PATH
-#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug"
-#endif
-
-char debugfs_mountpoint[PATH_MAX + 1] = DEBUGFS_DEFAULT_PATH;
-
-static const char * const debugfs_known_mountpoints[] = {
- DEBUGFS_DEFAULT_PATH,
- "/debug",
- 0,
-};
-
-static bool debugfs_found;
-
-bool debugfs_configured(void)
-{
- return debugfs_find_mountpoint() != NULL;
-}
-
-/* find the path to the mounted debugfs */
-const char *debugfs_find_mountpoint(void)
-{
- const char *ret;
-
- if (debugfs_found)
- return (const char *)debugfs_mountpoint;
-
- ret = find_mountpoint("debugfs", (long) DEBUGFS_MAGIC,
- debugfs_mountpoint, PATH_MAX + 1,
- debugfs_known_mountpoints);
- if (ret)
- debugfs_found = true;
-
- return ret;
-}
-
-/* mount the debugfs somewhere if it's not mounted */
-char *debugfs_mount(const char *mountpoint)
-{
- /* see if it's already mounted */
- if (debugfs_find_mountpoint())
- goto out;
-
- /* if not mounted and no argument */
- if (mountpoint == NULL) {
- /* see if environment variable set */
- mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT);
- /* if no environment variable, use default */
- if (mountpoint == NULL)
- mountpoint = DEBUGFS_DEFAULT_PATH;
- }
-
- if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
- return NULL;
-
- /* save the mountpoint */
- debugfs_found = true;
- strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
-out:
- return debugfs_mountpoint;
-}
diff --git a/tools/lib/api/fs/debugfs.h b/tools/lib/api/fs/debugfs.h
deleted file mode 100644
index 455023698d2b..000000000000
--- a/tools/lib/api/fs/debugfs.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef __API_DEBUGFS_H__
-#define __API_DEBUGFS_H__
-
-#include "findfs.h"
-
-#ifndef DEBUGFS_MAGIC
-#define DEBUGFS_MAGIC 0x64626720
-#endif
-
-#ifndef PERF_DEBUGFS_ENVIRONMENT
-#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
-#endif
-
-bool debugfs_configured(void);
-const char *debugfs_find_mountpoint(void);
-char *debugfs_mount(const char *mountpoint);
-
-extern char debugfs_mountpoint[];
-
-int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename);
-int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
-
-#endif /* __API_DEBUGFS_H__ */
diff --git a/tools/lib/api/fs/findfs.c b/tools/lib/api/fs/findfs.c
deleted file mode 100644
index 49946cb6d7af..000000000000
--- a/tools/lib/api/fs/findfs.c
+++ /dev/null
@@ -1,63 +0,0 @@
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-#include <sys/vfs.h>
-
-#include "findfs.h"
-
-/* verify that a mountpoint is actually the type we want */
-
-int valid_mountpoint(const char *mount, long magic)
-{
- struct statfs st_fs;
-
- if (statfs(mount, &st_fs) < 0)
- return -ENOENT;
- else if ((long)st_fs.f_type != magic)
- return -ENOENT;
-
- return 0;
-}
-
-/* find the path to a mounted file system */
-const char *find_mountpoint(const char *fstype, long magic,
- char *mountpoint, int len,
- const char * const *known_mountpoints)
-{
- const char * const *ptr;
- char format[128];
- char type[100];
- FILE *fp;
-
- if (known_mountpoints) {
- ptr = known_mountpoints;
- while (*ptr) {
- if (valid_mountpoint(*ptr, magic) == 0) {
- strncpy(mountpoint, *ptr, len - 1);
- mountpoint[len-1] = 0;
- return mountpoint;
- }
- ptr++;
- }
- }
-
- /* give up and parse /proc/mounts */
- fp = fopen("/proc/mounts", "r");
- if (fp == NULL)
- return NULL;
-
- snprintf(format, 128, "%%*s %%%ds %%99s %%*s %%*d %%*d\n", len);
-
- while (fscanf(fp, format, mountpoint, type) == 2) {
- if (strcmp(type, fstype) == 0)
- break;
- }
- fclose(fp);
-
- if (strcmp(type, fstype) != 0)
- return NULL;
-
- return mountpoint;
-}
diff --git a/tools/lib/api/fs/findfs.h b/tools/lib/api/fs/findfs.h
deleted file mode 100644
index b6f5d05acc42..000000000000
--- a/tools/lib/api/fs/findfs.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef __API_FINDFS_H__
-#define __API_FINDFS_H__
-
-#include <stdbool.h>
-
-#define _STR(x) #x
-#define STR(x) _STR(x)
-
-/*
- * On most systems <limits.h> would have given us this, but not on some systems
- * (e.g. GNU/Hurd).
- */
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
-
-const char *find_mountpoint(const char *fstype, long magic,
- char *mountpoint, int len,
- const char * const *known_mountpoints);
-
-int valid_mountpoint(const char *mount, long magic);
-
-#endif /* __API_FINDFS_H__ */
diff --git a/tools/lib/api/fs/tracefs.c b/tools/lib/api/fs/tracefs.c
deleted file mode 100644
index e4aa9688b71e..000000000000
--- a/tools/lib/api/fs/tracefs.c
+++ /dev/null
@@ -1,78 +0,0 @@
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <sys/vfs.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mount.h>
-#include <linux/kernel.h>
-
-#include "tracefs.h"
-
-#ifndef TRACEFS_DEFAULT_PATH
-#define TRACEFS_DEFAULT_PATH "/sys/kernel/tracing"
-#endif
-
-char tracefs_mountpoint[PATH_MAX + 1] = TRACEFS_DEFAULT_PATH;
-
-static const char * const tracefs_known_mountpoints[] = {
- TRACEFS_DEFAULT_PATH,
- "/sys/kernel/debug/tracing",
- "/tracing",
- "/trace",
- 0,
-};
-
-static bool tracefs_found;
-
-bool tracefs_configured(void)
-{
- return tracefs_find_mountpoint() != NULL;
-}
-
-/* find the path to the mounted tracefs */
-const char *tracefs_find_mountpoint(void)
-{
- const char *ret;
-
- if (tracefs_found)
- return (const char *)tracefs_mountpoint;
-
- ret = find_mountpoint("tracefs", (long) TRACEFS_MAGIC,
- tracefs_mountpoint, PATH_MAX + 1,
- tracefs_known_mountpoints);
-
- if (ret)
- tracefs_found = true;
-
- return ret;
-}
-
-/* mount the tracefs somewhere if it's not mounted */
-char *tracefs_mount(const char *mountpoint)
-{
- /* see if it's already mounted */
- if (tracefs_find_mountpoint())
- goto out;
-
- /* if not mounted and no argument */
- if (mountpoint == NULL) {
- /* see if environment variable set */
- mountpoint = getenv(PERF_TRACEFS_ENVIRONMENT);
- /* if no environment variable, use default */
- if (mountpoint == NULL)
- mountpoint = TRACEFS_DEFAULT_PATH;
- }
-
- if (mount(NULL, mountpoint, "tracefs", 0, NULL) < 0)
- return NULL;
-
- /* save the mountpoint */
- tracefs_found = true;
- strncpy(tracefs_mountpoint, mountpoint, sizeof(tracefs_mountpoint));
-out:
- return tracefs_mountpoint;
-}
diff --git a/tools/lib/api/fs/tracefs.h b/tools/lib/api/fs/tracefs.h
deleted file mode 100644
index da780ac49acb..000000000000
--- a/tools/lib/api/fs/tracefs.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __API_TRACEFS_H__
-#define __API_TRACEFS_H__
-
-#include "findfs.h"
-
-#ifndef TRACEFS_MAGIC
-#define TRACEFS_MAGIC 0x74726163
-#endif
-
-#ifndef PERF_TRACEFS_ENVIRONMENT
-#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
-#endif
-
-bool tracefs_configured(void);
-const char *tracefs_find_mountpoint(void);
-int tracefs_valid_mountpoint(const char *debugfs);
-char *tracefs_mount(const char *mountpoint);
-
-extern char tracefs_mountpoint[];
-
-#endif /* __API_DEBUGFS_H__ */
--
2.1.0
--
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