Lines Matching refs:file
35 static inline int unsigned_offsets(struct file *file) in unsigned_offsets() argument
37 return file->f_mode & FMODE_UNSIGNED_OFFSET; in unsigned_offsets()
52 loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize) in vfs_setpos() argument
54 if (offset < 0 && !unsigned_offsets(file)) in vfs_setpos()
59 if (offset != file->f_pos) { in vfs_setpos()
60 file->f_pos = offset; in vfs_setpos()
61 file->f_version = 0; in vfs_setpos()
84 generic_file_llseek_size(struct file *file, loff_t offset, int whence, in generic_file_llseek_size() argument
99 return file->f_pos; in generic_file_llseek_size()
105 spin_lock(&file->f_lock); in generic_file_llseek_size()
106 offset = vfs_setpos(file, file->f_pos + offset, maxsize); in generic_file_llseek_size()
107 spin_unlock(&file->f_lock); in generic_file_llseek_size()
128 return vfs_setpos(file, offset, maxsize); in generic_file_llseek_size()
142 loff_t generic_file_llseek(struct file *file, loff_t offset, int whence) in generic_file_llseek() argument
144 struct inode *inode = file->f_mapping->host; in generic_file_llseek()
146 return generic_file_llseek_size(file, offset, whence, in generic_file_llseek()
160 loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size) in fixed_size_llseek() argument
164 return generic_file_llseek_size(file, offset, whence, in fixed_size_llseek()
179 loff_t no_seek_end_llseek(struct file *file, loff_t offset, int whence) in no_seek_end_llseek() argument
183 return generic_file_llseek_size(file, offset, whence, in no_seek_end_llseek()
199 loff_t no_seek_end_llseek_size(struct file *file, loff_t offset, int whence, loff_t size) in no_seek_end_llseek_size() argument
203 return generic_file_llseek_size(file, offset, whence, in no_seek_end_llseek_size()
222 loff_t noop_llseek(struct file *file, loff_t offset, int whence) in noop_llseek() argument
224 return file->f_pos; in noop_llseek()
228 loff_t no_llseek(struct file *file, loff_t offset, int whence) in no_llseek() argument
234 loff_t default_llseek(struct file *file, loff_t offset, int whence) in default_llseek() argument
236 struct inode *inode = file_inode(file); in default_llseek()
246 retval = file->f_pos; in default_llseek()
249 offset += file->f_pos; in default_llseek()
276 if (offset >= 0 || unsigned_offsets(file)) { in default_llseek()
277 if (offset != file->f_pos) { in default_llseek()
278 file->f_pos = offset; in default_llseek()
279 file->f_version = 0; in default_llseek()
289 loff_t vfs_llseek(struct file *file, loff_t offset, int whence) in vfs_llseek() argument
291 loff_t (*fn)(struct file *, loff_t, int); in vfs_llseek()
294 if (file->f_mode & FMODE_LSEEK) { in vfs_llseek()
295 if (file->f_op->llseek) in vfs_llseek()
296 fn = file->f_op->llseek; in vfs_llseek()
298 return fn(file, offset, whence); in vfs_llseek()
306 if (!f.file) in SYSCALL_DEFINE3()
311 loff_t res = vfs_llseek(f.file, offset, whence); in SYSCALL_DEFINE3()
336 if (!f.file) in SYSCALL_DEFINE5()
343 offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low, in SYSCALL_DEFINE5()
358 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos) in vfs_iter_read() argument
363 if (!file->f_op->read_iter) in vfs_iter_read()
366 init_sync_kiocb(&kiocb, file); in vfs_iter_read()
370 ret = file->f_op->read_iter(&kiocb, iter); in vfs_iter_read()
378 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos) in vfs_iter_write() argument
383 if (!file->f_op->write_iter) in vfs_iter_write()
386 init_sync_kiocb(&kiocb, file); in vfs_iter_write()
390 ret = file->f_op->write_iter(&kiocb, iter); in vfs_iter_write()
398 int rw_verify_area(int read_write, struct file *file, const loff_t *ppos, size_t count) in rw_verify_area() argument
404 inode = file_inode(file); in rw_verify_area()
409 if (!unsigned_offsets(file)) in rw_verify_area()
414 if (!unsigned_offsets(file)) in rw_verify_area()
419 retval = locks_mandatory_area(inode, file, pos, pos + count - 1, in rw_verify_area()
424 return security_file_permission(file, in rw_verify_area()
428 static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) in new_sync_read()
445 ssize_t __vfs_read(struct file *file, char __user *buf, size_t count, in __vfs_read() argument
448 if (file->f_op->read) in __vfs_read()
449 return file->f_op->read(file, buf, count, pos); in __vfs_read()
450 else if (file->f_op->read_iter) in __vfs_read()
451 return new_sync_read(file, buf, count, pos); in __vfs_read()
457 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) in vfs_read() argument
461 if (!(file->f_mode & FMODE_READ)) in vfs_read()
463 if (!(file->f_mode & FMODE_CAN_READ)) in vfs_read()
468 ret = rw_verify_area(READ, file, pos, count); in vfs_read()
472 ret = __vfs_read(file, buf, count, pos); in vfs_read()
474 fsnotify_access(file); in vfs_read()
485 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos) in new_sync_write()
503 ssize_t __vfs_write(struct file *file, const char __user *p, size_t count, in __vfs_write() argument
506 if (file->f_op->write) in __vfs_write()
507 return file->f_op->write(file, p, count, pos); in __vfs_write()
508 else if (file->f_op->write_iter) in __vfs_write()
509 return new_sync_write(file, p, count, pos); in __vfs_write()
515 ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos) in __kernel_write() argument
521 if (!(file->f_mode & FMODE_CAN_WRITE)) in __kernel_write()
529 ret = __vfs_write(file, p, count, pos); in __kernel_write()
532 fsnotify_modify(file); in __kernel_write()
541 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) in vfs_write() argument
545 if (!(file->f_mode & FMODE_WRITE)) in vfs_write()
547 if (!(file->f_mode & FMODE_CAN_WRITE)) in vfs_write()
552 ret = rw_verify_area(WRITE, file, pos, count); in vfs_write()
556 file_start_write(file); in vfs_write()
557 ret = __vfs_write(file, buf, count, pos); in vfs_write()
559 fsnotify_modify(file); in vfs_write()
563 file_end_write(file); in vfs_write()
571 static inline loff_t file_pos_read(struct file *file) in file_pos_read() argument
573 return file->f_pos; in file_pos_read()
576 static inline void file_pos_write(struct file *file, loff_t pos) in file_pos_write() argument
578 file->f_pos = pos; in file_pos_write()
586 if (f.file) { in SYSCALL_DEFINE3()
587 loff_t pos = file_pos_read(f.file); in SYSCALL_DEFINE3()
588 ret = vfs_read(f.file, buf, count, &pos); in SYSCALL_DEFINE3()
590 file_pos_write(f.file, pos); in SYSCALL_DEFINE3()
602 if (f.file) { in SYSCALL_DEFINE3()
603 loff_t pos = file_pos_read(f.file); in SYSCALL_DEFINE3()
604 ret = vfs_write(f.file, buf, count, &pos); in SYSCALL_DEFINE3()
606 file_pos_write(f.file, pos); in SYSCALL_DEFINE3()
623 if (f.file) { in SYSCALL_DEFINE4()
625 if (f.file->f_mode & FMODE_PREAD) in SYSCALL_DEFINE4()
626 ret = vfs_read(f.file, buf, count, &pos); in SYSCALL_DEFINE4()
643 if (f.file) { in SYSCALL_DEFINE4()
645 if (f.file->f_mode & FMODE_PWRITE) in SYSCALL_DEFINE4()
646 ret = vfs_write(f.file, buf, count, &pos); in SYSCALL_DEFINE4()
674 static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter, in do_iter_readv_writev()
702 static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter, in do_loop_readv_writev()
843 static ssize_t do_readv_writev(int type, struct file *file, in do_readv_writev() argument
862 ret = rw_verify_area(type, file, pos, tot_len); in do_readv_writev()
867 file_start_write(file); in do_readv_writev()
869 if ((type == READ && file->f_op->read_iter) || in do_readv_writev()
870 (type == WRITE && file->f_op->write_iter)) in do_readv_writev()
871 ret = do_iter_readv_writev(file, &iter, pos, type, flags); in do_readv_writev()
873 ret = do_loop_readv_writev(file, &iter, pos, type, flags); in do_readv_writev()
876 file_end_write(file); in do_readv_writev()
882 fsnotify_access(file); in do_readv_writev()
884 fsnotify_modify(file); in do_readv_writev()
889 ssize_t vfs_readv(struct file *file, const struct iovec __user *vec, in vfs_readv() argument
892 if (!(file->f_mode & FMODE_READ)) in vfs_readv()
894 if (!(file->f_mode & FMODE_CAN_READ)) in vfs_readv()
897 return do_readv_writev(READ, file, vec, vlen, pos, flags); in vfs_readv()
902 ssize_t vfs_writev(struct file *file, const struct iovec __user *vec, in vfs_writev() argument
905 if (!(file->f_mode & FMODE_WRITE)) in vfs_writev()
907 if (!(file->f_mode & FMODE_CAN_WRITE)) in vfs_writev()
910 return do_readv_writev(WRITE, file, vec, vlen, pos, flags); in vfs_writev()
921 if (f.file) { in do_readv()
922 loff_t pos = file_pos_read(f.file); in do_readv()
923 ret = vfs_readv(f.file, vec, vlen, &pos, flags); in do_readv()
925 file_pos_write(f.file, pos); in do_readv()
941 if (f.file) { in do_writev()
942 loff_t pos = file_pos_read(f.file); in do_writev()
943 ret = vfs_writev(f.file, vec, vlen, &pos, flags); in do_writev()
945 file_pos_write(f.file, pos); in do_writev()
971 if (f.file) { in do_preadv()
973 if (f.file->f_mode & FMODE_PREAD) in do_preadv()
974 ret = vfs_readv(f.file, vec, vlen, &pos, flags); in do_preadv()
994 if (f.file) { in do_pwritev()
996 if (f.file->f_mode & FMODE_PWRITE) in do_pwritev()
997 ret = vfs_writev(f.file, vec, vlen, &pos, flags); in do_pwritev()
1061 static ssize_t compat_do_readv_writev(int type, struct file *file, in compat_do_readv_writev() argument
1080 ret = rw_verify_area(type, file, pos, tot_len); in compat_do_readv_writev()
1085 file_start_write(file); in compat_do_readv_writev()
1087 if ((type == READ && file->f_op->read_iter) || in compat_do_readv_writev()
1088 (type == WRITE && file->f_op->write_iter)) in compat_do_readv_writev()
1089 ret = do_iter_readv_writev(file, &iter, pos, type, flags); in compat_do_readv_writev()
1091 ret = do_loop_readv_writev(file, &iter, pos, type, flags); in compat_do_readv_writev()
1094 file_end_write(file); in compat_do_readv_writev()
1100 fsnotify_access(file); in compat_do_readv_writev()
1102 fsnotify_modify(file); in compat_do_readv_writev()
1107 static size_t compat_readv(struct file *file, in compat_readv() argument
1113 if (!(file->f_mode & FMODE_READ)) in compat_readv()
1117 if (!(file->f_mode & FMODE_CAN_READ)) in compat_readv()
1120 ret = compat_do_readv_writev(READ, file, vec, vlen, pos, flags); in compat_readv()
1137 if (!f.file) in do_compat_readv()
1139 pos = f.file->f_pos; in do_compat_readv()
1140 ret = compat_readv(f.file, vec, vlen, &pos, flags); in do_compat_readv()
1142 f.file->f_pos = pos; in do_compat_readv()
1165 if (!f.file) in do_compat_preadv64()
1168 if (f.file->f_mode & FMODE_PREAD) in do_compat_preadv64()
1169 ret = compat_readv(f.file, vec, vlen, &pos, flags); in do_compat_preadv64()
1214 static size_t compat_writev(struct file *file, in compat_writev() argument
1220 if (!(file->f_mode & FMODE_WRITE)) in compat_writev()
1224 if (!(file->f_mode & FMODE_CAN_WRITE)) in compat_writev()
1227 ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos, flags); in compat_writev()
1244 if (!f.file) in do_compat_writev()
1246 pos = f.file->f_pos; in do_compat_writev()
1247 ret = compat_writev(f.file, vec, vlen, &pos, flags); in do_compat_writev()
1249 f.file->f_pos = pos; in do_compat_writev()
1271 if (!f.file) in do_compat_pwritev64()
1274 if (f.file->f_mode & FMODE_PWRITE) in do_compat_pwritev64()
1275 ret = compat_writev(f.file, vec, vlen, &pos, flags); in do_compat_pwritev64()
1336 if (!in.file) in do_sendfile()
1338 if (!(in.file->f_mode & FMODE_READ)) in do_sendfile()
1342 pos = in.file->f_pos; in do_sendfile()
1345 if (!(in.file->f_mode & FMODE_PREAD)) in do_sendfile()
1348 retval = rw_verify_area(READ, in.file, &pos, count); in do_sendfile()
1359 if (!out.file) in do_sendfile()
1361 if (!(out.file->f_mode & FMODE_WRITE)) in do_sendfile()
1364 in_inode = file_inode(in.file); in do_sendfile()
1365 out_inode = file_inode(out.file); in do_sendfile()
1366 out_pos = out.file->f_pos; in do_sendfile()
1367 retval = rw_verify_area(WRITE, out.file, &out_pos, count); in do_sendfile()
1389 if (in.file->f_flags & O_NONBLOCK) in do_sendfile()
1392 file_start_write(out.file); in do_sendfile()
1393 retval = do_splice_direct(in.file, &pos, out.file, &out_pos, count, fl); in do_sendfile()
1394 file_end_write(out.file); in do_sendfile()
1399 fsnotify_access(in.file); in do_sendfile()
1400 fsnotify_modify(out.file); in do_sendfile()
1401 out.file->f_pos = out_pos; in do_sendfile()
1405 in.file->f_pos = pos; in do_sendfile()
1502 ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in, in vfs_copy_file_range()
1503 struct file *file_out, loff_t pos_out, in vfs_copy_file_range()
1576 if (!f_in.file) in SYSCALL_DEFINE6()
1580 if (!f_out.file) in SYSCALL_DEFINE6()
1588 pos_in = f_in.file->f_pos; in SYSCALL_DEFINE6()
1595 pos_out = f_out.file->f_pos; in SYSCALL_DEFINE6()
1598 ret = vfs_copy_file_range(f_in.file, pos_in, f_out.file, pos_out, len, in SYSCALL_DEFINE6()
1608 f_in.file->f_pos = pos_in; in SYSCALL_DEFINE6()
1615 f_out.file->f_pos = pos_out; in SYSCALL_DEFINE6()
1627 static int clone_verify_area(struct file *file, loff_t pos, u64 len, bool write) in clone_verify_area() argument
1629 struct inode *inode = file_inode(file); in clone_verify_area()
1641 retval = locks_mandatory_area(inode, file, pos, end, in clone_verify_area()
1647 return security_file_permission(file, write ? MAY_WRITE : MAY_READ); in clone_verify_area()
1650 int vfs_clone_file_range(struct file *file_in, loff_t pos_in, in vfs_clone_file_range()
1651 struct file *file_out, loff_t pos_out, u64 len) in vfs_clone_file_range()
1701 int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same) in vfs_dedupe_file_range() argument
1704 struct inode *src = file_inode(file); in vfs_dedupe_file_range()
1711 struct file *dst_file; in vfs_dedupe_file_range()
1715 if (!(file->f_mode & FMODE_READ)) in vfs_dedupe_file_range()
1732 ret = clone_verify_area(file, off, len, false); in vfs_dedupe_file_range()
1747 dst_file = dst_fd.file; in vfs_dedupe_file_range()
1772 } else if (file->f_path.mnt != dst_file->f_path.mnt) { in vfs_dedupe_file_range()
1779 deduped = dst_file->f_op->dedupe_file_range(file, off, in vfs_dedupe_file_range()