53 static int statfs_by_dentry(struct dentry *dentry, struct kstatfs *buf)  in statfs_by_dentry()  argument
60 	memset(buf, 0, sizeof(*buf));  in statfs_by_dentry()
64 	retval = dentry->d_sb->s_op->statfs(dentry, buf);  in statfs_by_dentry()
65 	if (retval == 0 && buf->f_frsize == 0)  in statfs_by_dentry()
66 		buf->f_frsize = buf->f_bsize;  in statfs_by_dentry()
70 int vfs_statfs(const struct path *path, struct kstatfs *buf)  in vfs_statfs()  argument
74 	error = statfs_by_dentry(path->dentry, buf);  in vfs_statfs()
76 		buf->f_flags = calculate_f_flags(path->mnt);  in vfs_statfs()
112 	struct statfs buf;  in do_statfs_native()  local
114 	if (sizeof(buf) == sizeof(*st))  in do_statfs_native()
115 		memcpy(&buf, st, sizeof(*st));  in do_statfs_native()
117 		if (sizeof buf.f_blocks == 4) {  in do_statfs_native()
134 		buf.f_type = st->f_type;  in do_statfs_native()
135 		buf.f_bsize = st->f_bsize;  in do_statfs_native()
136 		buf.f_blocks = st->f_blocks;  in do_statfs_native()
137 		buf.f_bfree = st->f_bfree;  in do_statfs_native()
138 		buf.f_bavail = st->f_bavail;  in do_statfs_native()
139 		buf.f_files = st->f_files;  in do_statfs_native()
140 		buf.f_ffree = st->f_ffree;  in do_statfs_native()
141 		buf.f_fsid = st->f_fsid;  in do_statfs_native()
142 		buf.f_namelen = st->f_namelen;  in do_statfs_native()
143 		buf.f_frsize = st->f_frsize;  in do_statfs_native()
144 		buf.f_flags = st->f_flags;  in do_statfs_native()
145 		memset(buf.f_spare, 0, sizeof(buf.f_spare));  in do_statfs_native()
147 	if (copy_to_user(p, &buf, sizeof(buf)))  in do_statfs_native()
154 	struct statfs64 buf;  in do_statfs64()  local
155 	if (sizeof(buf) == sizeof(*st))  in do_statfs64()
156 		memcpy(&buf, st, sizeof(*st));  in do_statfs64()
158 		buf.f_type = st->f_type;  in do_statfs64()
159 		buf.f_bsize = st->f_bsize;  in do_statfs64()
160 		buf.f_blocks = st->f_blocks;  in do_statfs64()
161 		buf.f_bfree = st->f_bfree;  in do_statfs64()
162 		buf.f_bavail = st->f_bavail;  in do_statfs64()
163 		buf.f_files = st->f_files;  in do_statfs64()
164 		buf.f_ffree = st->f_ffree;  in do_statfs64()
165 		buf.f_fsid = st->f_fsid;  in do_statfs64()
166 		buf.f_namelen = st->f_namelen;  in do_statfs64()
167 		buf.f_frsize = st->f_frsize;  in do_statfs64()
168 		buf.f_flags = st->f_flags;  in do_statfs64()
169 		memset(buf.f_spare, 0, sizeof(buf.f_spare));  in do_statfs64()
171 	if (copy_to_user(p, &buf, sizeof(buf)))  in do_statfs64()
176 SYSCALL_DEFINE2(statfs, const char __user *, pathname, struct statfs __user *, buf)  in SYSCALL_DEFINE2()  argument
181 		error = do_statfs_native(&st, buf);  in SYSCALL_DEFINE2()
185 SYSCALL_DEFINE3(statfs64, const char __user *, pathname, size_t, sz, struct statfs64 __user *, buf)  in SYSCALL_DEFINE3()  argument
189 	if (sz != sizeof(*buf))  in SYSCALL_DEFINE3()
193 		error = do_statfs64(&st, buf);  in SYSCALL_DEFINE3()
197 SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct statfs __user *, buf)  in SYSCALL_DEFINE2()  argument
202 		error = do_statfs_native(&st, buf);  in SYSCALL_DEFINE2()
206 SYSCALL_DEFINE3(fstatfs64, unsigned int, fd, size_t, sz, struct statfs64 __user *, buf)  in SYSCALL_DEFINE3()  argument
211 	if (sz != sizeof(*buf))  in SYSCALL_DEFINE3()
216 		error = do_statfs64(&st, buf);  in SYSCALL_DEFINE3()
250 	struct compat_statfs buf;  in put_compat_statfs()  local
264 	memset(&buf, 0, sizeof(struct compat_statfs));  in put_compat_statfs()
265 	buf.f_type = kbuf->f_type;  in put_compat_statfs()
266 	buf.f_bsize = kbuf->f_bsize;  in put_compat_statfs()
267 	buf.f_blocks = kbuf->f_blocks;  in put_compat_statfs()
268 	buf.f_bfree = kbuf->f_bfree;  in put_compat_statfs()
269 	buf.f_bavail = kbuf->f_bavail;  in put_compat_statfs()
270 	buf.f_files = kbuf->f_files;  in put_compat_statfs()
271 	buf.f_ffree = kbuf->f_ffree;  in put_compat_statfs()
272 	buf.f_namelen = kbuf->f_namelen;  in put_compat_statfs()
273 	buf.f_fsid.val[0] = kbuf->f_fsid.val[0];  in put_compat_statfs()
274 	buf.f_fsid.val[1] = kbuf->f_fsid.val[1];  in put_compat_statfs()
275 	buf.f_frsize = kbuf->f_frsize;  in put_compat_statfs()
276 	buf.f_flags = kbuf->f_flags;  in put_compat_statfs()
277 	if (copy_to_user(ubuf, &buf, sizeof(struct compat_statfs)))  in put_compat_statfs()
286 COMPAT_SYSCALL_DEFINE2(statfs, const char __user *, pathname, struct compat_statfs __user *, buf)  in COMPAT_SYSCALL_DEFINE2()  argument
291 		error = put_compat_statfs(buf, &tmp);  in COMPAT_SYSCALL_DEFINE2()
295 COMPAT_SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct compat_statfs __user *, buf)  in COMPAT_SYSCALL_DEFINE2()  argument
300 		error = put_compat_statfs(buf, &tmp);  in COMPAT_SYSCALL_DEFINE2()
306 	struct compat_statfs64 buf;  in put_compat_statfs64()  local
320 	memset(&buf, 0, sizeof(struct compat_statfs64));  in put_compat_statfs64()
321 	buf.f_type = kbuf->f_type;  in put_compat_statfs64()
322 	buf.f_bsize = kbuf->f_bsize;  in put_compat_statfs64()
323 	buf.f_blocks = kbuf->f_blocks;  in put_compat_statfs64()
324 	buf.f_bfree = kbuf->f_bfree;  in put_compat_statfs64()
325 	buf.f_bavail = kbuf->f_bavail;  in put_compat_statfs64()
326 	buf.f_files = kbuf->f_files;  in put_compat_statfs64()
327 	buf.f_ffree = kbuf->f_ffree;  in put_compat_statfs64()
328 	buf.f_namelen = kbuf->f_namelen;  in put_compat_statfs64()
329 	buf.f_fsid.val[0] = kbuf->f_fsid.val[0];  in put_compat_statfs64()
330 	buf.f_fsid.val[1] = kbuf->f_fsid.val[1];  in put_compat_statfs64()
331 	buf.f_frsize = kbuf->f_frsize;  in put_compat_statfs64()
332 	buf.f_flags = kbuf->f_flags;  in put_compat_statfs64()
333 	if (copy_to_user(ubuf, &buf, sizeof(struct compat_statfs64)))  in put_compat_statfs64()
338 …t_sys_statfs64(const char __user * pathname, compat_size_t sz, struct compat_statfs64 __user * buf)  in kcompat_sys_statfs64()  argument
343 	if (sz != sizeof(*buf))  in kcompat_sys_statfs64()
348 		error = put_compat_statfs64(buf, &tmp);  in kcompat_sys_statfs64()
352 …3(statfs64, const char __user *, pathname, compat_size_t, sz, struct compat_statfs64 __user *, buf)  in COMPAT_SYSCALL_DEFINE3()  argument
354 	return kcompat_sys_statfs64(pathname, sz, buf);  in COMPAT_SYSCALL_DEFINE3()
357 int kcompat_sys_fstatfs64(unsigned int fd, compat_size_t sz, struct compat_statfs64 __user * buf)  in kcompat_sys_fstatfs64()  argument
362 	if (sz != sizeof(*buf))  in kcompat_sys_fstatfs64()
367 		error = put_compat_statfs64(buf, &tmp);  in kcompat_sys_fstatfs64()
371 …SCALL_DEFINE3(fstatfs64, unsigned int, fd, compat_size_t, sz, struct compat_statfs64 __user *, buf)  in COMPAT_SYSCALL_DEFINE3()  argument
373 	return kcompat_sys_fstatfs64(fd, sz, buf);  in COMPAT_SYSCALL_DEFINE3()