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authorOlof Johansson <olof@lixom.net>2013-11-15 18:17:59 -0500
committerOlof Johansson <olof@lixom.net>2013-11-15 18:17:59 -0500
commit6886059f2ef5d62c73e87a905e84fa4f87d56074 (patch)
treedfe6e1611d7c50057df52db7b55eafbfb8e33a93 /tools/perf/util/sysfs.c
parentca439c9b983ffa14e9eae6030e3ee80ad039388f (diff)
parent26273e02a0cf18eb72416559310d3294390a9024 (diff)
Merge tag 'omap-for-v3.13/fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Few clock fixes, a runtime PM fix, and pinctrl-single fix along with few other fixes that popped up during the merge window. * tag 'omap-for-v3.13/fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Fix build for dra7xx without omap4 and 5 ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume doc: devicetree: Add bindings documentation for omap-des driver ARM: dts: doc: Document missing compatible property for omap-sham driver ARM: OMAP3: Beagle: fix return value check in beagle_opp_init() ARM: OMAP: devicetree: fix SPI node compatible property syntax items pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init() + sync with newer trunk
Diffstat (limited to 'tools/perf/util/sysfs.c')
-rw-r--r--tools/perf/util/sysfs.c60
1 files changed, 0 insertions, 60 deletions
diff --git a/tools/perf/util/sysfs.c b/tools/perf/util/sysfs.c
deleted file mode 100644
index f71e9eafe15a..000000000000
--- a/tools/perf/util/sysfs.c
+++ /dev/null
@@ -1,60 +0,0 @@
1
2#include "util.h"
3#include "sysfs.h"
4
5static const char * const sysfs_known_mountpoints[] = {
6 "/sys",
7 0,
8};
9
10static int sysfs_found;
11char sysfs_mountpoint[PATH_MAX + 1];
12
13static int sysfs_valid_mountpoint(const char *sysfs)
14{
15 struct statfs st_fs;
16
17 if (statfs(sysfs, &st_fs) < 0)
18 return -ENOENT;
19 else if (st_fs.f_type != (long) SYSFS_MAGIC)
20 return -ENOENT;
21
22 return 0;
23}
24
25const char *sysfs_find_mountpoint(void)
26{
27 const char * const *ptr;
28 char type[100];
29 FILE *fp;
30
31 if (sysfs_found)
32 return (const char *) sysfs_mountpoint;
33
34 ptr = sysfs_known_mountpoints;
35 while (*ptr) {
36 if (sysfs_valid_mountpoint(*ptr) == 0) {
37 sysfs_found = 1;
38 strcpy(sysfs_mountpoint, *ptr);
39 return sysfs_mountpoint;
40 }
41 ptr++;
42 }
43
44 /* give up and parse /proc/mounts */
45 fp = fopen("/proc/mounts", "r");
46 if (fp == NULL)
47 return NULL;
48
49 while (!sysfs_found &&
50 fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
51 sysfs_mountpoint, type) == 2) {
52
53 if (strcmp(type, "sysfs") == 0)
54 sysfs_found = 1;
55 }
56
57 fclose(fp);
58
59 return sysfs_found ? sysfs_mountpoint : NULL;
60}