88 struct fs {  struct
110 static struct fs fs__entries[] = {  argument
149 static bool fs__read_mounts(struct fs *fs)  in fs__read_mounts()  argument
161 		      fs->path, type) == 2) {  in fs__read_mounts()
163 		if (strcmp(type, fs->name) == 0)  in fs__read_mounts()
168 	fs->checked = true;  in fs__read_mounts()
169 	return fs->found = found;  in fs__read_mounts()
172 static int fs__valid_mount(const char *fs, long magic)  in fs__valid_mount()  argument
176 	if (statfs(fs, &st_fs) < 0)  in fs__valid_mount()
184 static bool fs__check_mounts(struct fs *fs)  in fs__check_mounts()  argument
188 	ptr = fs->mounts;  in fs__check_mounts()
190 		if (fs__valid_mount(*ptr, fs->magic) == 0) {  in fs__check_mounts()
191 			fs->found = true;  in fs__check_mounts()
192 			strcpy(fs->path, *ptr);  in fs__check_mounts()
215 static bool fs__env_override(struct fs *fs)  in fs__env_override()  argument
218 	size_t name_len = strlen(fs->name);  in fs__env_override()
222 	memcpy(upper_name, fs->name, name_len);  in fs__env_override()
230 	fs->found = true;  in fs__env_override()
231 	fs->checked = true;  in fs__env_override()
232 	strncpy(fs->path, override_path, sizeof(fs->path) - 1);  in fs__env_override()
233 	fs->path[sizeof(fs->path) - 1] = '\0';  in fs__env_override()
237 static const char *fs__get_mountpoint(struct fs *fs)  in fs__get_mountpoint()  argument
239 	if (fs__env_override(fs))  in fs__get_mountpoint()
240 		return fs->path;  in fs__get_mountpoint()
242 	if (fs__check_mounts(fs))  in fs__get_mountpoint()
243 		return fs->path;  in fs__get_mountpoint()
245 	if (fs__read_mounts(fs))  in fs__get_mountpoint()
246 		return fs->path;  in fs__get_mountpoint()
253 	struct fs *fs = &fs__entries[idx];  in fs__mountpoint()  local
255 	if (fs->found)  in fs__mountpoint()
256 		return (const char *)fs->path;  in fs__mountpoint()
263 	if (fs->checked)  in fs__mountpoint()
266 	return fs__get_mountpoint(fs);  in fs__mountpoint()
269 static const char *mount_overload(struct fs *fs)  in mount_overload()  argument
271 	size_t name_len = strlen(fs->name);  in mount_overload()
275 	snprintf(upper_name, name_len, "PERF_%s_ENVIRONMENT", fs->name);  in mount_overload()
278 	return getenv(upper_name) ?: *fs->mounts;  in mount_overload()
283 	struct fs *fs = &fs__entries[idx];  in fs__mount()  local
287 		return (const char *)fs->path;  in fs__mount()
289 	mountpoint = mount_overload(fs);  in fs__mount()
291 	if (mount(NULL, mountpoint, fs->name, 0, NULL) < 0)  in fs__mount()
294 	return fs__check_mounts(fs) ? fs->path : NULL;  in fs__mount()