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author | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
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committer | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
commit | 38fd2c202a3d82bc12430bce5789fa2c2a406f71 (patch) | |
tree | a73513dbb015155f5236b391709b9083916b3136 /tools/perf/util/sysfs.c | |
parent | dcf4e392867bf98d50ad108ed7c2bfb941e8c33d (diff) | |
parent | d6e0a2dd12f4067a5bcefb8bbd8ddbeff800afbc (diff) | |
download | linux-38fd2c202a3d82bc12430bce5789fa2c2a406f71.tar.xz |
Merge to v3.13-rc7 for prerequisite changes in the Xen code for TPM
Diffstat (limited to 'tools/perf/util/sysfs.c')
-rw-r--r-- | tools/perf/util/sysfs.c | 60 |
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 @@ - -#include "util.h" -#include "sysfs.h" - -static const char * const sysfs_known_mountpoints[] = { - "/sys", - 0, -}; - -static int sysfs_found; -char sysfs_mountpoint[PATH_MAX + 1]; - -static int sysfs_valid_mountpoint(const char *sysfs) -{ - struct statfs st_fs; - - if (statfs(sysfs, &st_fs) < 0) - return -ENOENT; - else if (st_fs.f_type != (long) SYSFS_MAGIC) - return -ENOENT; - - return 0; -} - -const char *sysfs_find_mountpoint(void) -{ - const char * const *ptr; - char type[100]; - FILE *fp; - - if (sysfs_found) - return (const char *) sysfs_mountpoint; - - ptr = sysfs_known_mountpoints; - while (*ptr) { - if (sysfs_valid_mountpoint(*ptr) == 0) { - sysfs_found = 1; - strcpy(sysfs_mountpoint, *ptr); - return sysfs_mountpoint; - } - ptr++; - } - - /* give up and parse /proc/mounts */ - fp = fopen("/proc/mounts", "r"); - if (fp == NULL) - return NULL; - - while (!sysfs_found && - fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n", - sysfs_mountpoint, type) == 2) { - - if (strcmp(type, "sysfs") == 0) - sysfs_found = 1; - } - - fclose(fp); - - return sysfs_found ? sysfs_mountpoint : NULL; -} |