diff options
Diffstat (limited to 'tools/lib/api/fs/fs.h')
| -rw-r--r-- | tools/lib/api/fs/fs.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h index 45605348461e..aa222ca30311 100644 --- a/tools/lib/api/fs/fs.h +++ b/tools/lib/api/fs/fs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __API_FS__ #define __API_FS__ @@ -17,6 +18,18 @@ const char *name##__mount(void); \ bool name##__configured(void); \ +/* + * The xxxx__mountpoint() entry points find the first match mount point for each + * filesystems listed below, where xxxx is the filesystem type. + * + * The interface is as follows: + * + * - If a mount point is found on first call, it is cached and used for all + * subsequent calls. + * + * - If a mount point is not found, NULL is returned on first call and all + * subsequent calls. + */ FS(sysfs) FS(procfs) FS(debugfs) @@ -27,8 +40,11 @@ FS(bpf_fs) #undef FS +int cgroupfs_find_mountpoint(char *buf, size_t maxlen, const char *subsys); + int filename__read_int(const char *filename, int *value); int filename__read_ull(const char *filename, unsigned long long *value); +int filename__read_xll(const char *filename, unsigned long long *value); int filename__read_str(const char *filename, char **buf, size_t *sizep); int filename__write_int(const char *filename, int value); @@ -38,6 +54,7 @@ int procfs__read_str(const char *entry, char **buf, size_t *sizep); int sysctl__read_int(const char *sysctl, int *value); int sysfs__read_int(const char *entry, int *value); int sysfs__read_ull(const char *entry, unsigned long long *value); +int sysfs__read_xll(const char *entry, unsigned long long *value); int sysfs__read_str(const char *entry, char **buf, size_t *sizep); int sysfs__read_bool(const char *entry, bool *value); |