69 struct fs {  struct
88 static struct fs fs__entries[] = {  argument
111 static bool fs__read_mounts(struct fs *fs)  in fs__read_mounts()  argument
123 		      fs->path, type) == 2) {  in fs__read_mounts()
125 		if (strcmp(type, fs->name) == 0)  in fs__read_mounts()
130 	return fs->found = found;  in fs__read_mounts()
133 static int fs__valid_mount(const char *fs, long magic)  in fs__valid_mount()  argument
137 	if (statfs(fs, &st_fs) < 0)  in fs__valid_mount()
145 static bool fs__check_mounts(struct fs *fs)  in fs__check_mounts()  argument
149 	ptr = fs->mounts;  in fs__check_mounts()
151 		if (fs__valid_mount(*ptr, fs->magic) == 0) {  in fs__check_mounts()
152 			fs->found = true;  in fs__check_mounts()
153 			strcpy(fs->path, *ptr);  in fs__check_mounts()
176 static bool fs__env_override(struct fs *fs)  in fs__env_override()  argument
179 	size_t name_len = strlen(fs->name);  in fs__env_override()
182 	memcpy(upper_name, fs->name, name_len);  in fs__env_override()
190 	fs->found = true;  in fs__env_override()
191 	strncpy(fs->path, override_path, sizeof(fs->path));  in fs__env_override()
195 static const char *fs__get_mountpoint(struct fs *fs)  in fs__get_mountpoint()  argument
197 	if (fs__env_override(fs))  in fs__get_mountpoint()
198 		return fs->path;  in fs__get_mountpoint()
200 	if (fs__check_mounts(fs))  in fs__get_mountpoint()
201 		return fs->path;  in fs__get_mountpoint()
203 	if (fs__read_mounts(fs))  in fs__get_mountpoint()
204 		return fs->path;  in fs__get_mountpoint()
211 	struct fs *fs = &fs__entries[idx];  in fs__mountpoint()  local
213 	if (fs->found)  in fs__mountpoint()
214 		return (const char *)fs->path;  in fs__mountpoint()
216 	return fs__get_mountpoint(fs);  in fs__mountpoint()
219 static const char *mount_overload(struct fs *fs)  in mount_overload()  argument
221 	size_t name_len = strlen(fs->name);  in mount_overload()
225 	snprintf(upper_name, name_len, "PERF_%s_ENVIRONMENT", fs->name);  in mount_overload()
228 	return getenv(upper_name) ?: *fs->mounts;  in mount_overload()
233 	struct fs *fs = &fs__entries[idx];  in fs__mount()  local
237 		return (const char *)fs->path;  in fs__mount()
239 	mountpoint = mount_overload(fs);  in fs__mount()
241 	if (mount(NULL, mountpoint, fs->name, 0, NULL) < 0)  in fs__mount()
244 	return fs__check_mounts(fs) ? fs->path : NULL;  in fs__mount()