55 static loff_t vfs_setpos_cookie(struct file *file, loff_t offset,  in vfs_setpos_cookie()
56 				loff_t maxsize, u64 *cookie)  in vfs_setpos_cookie()
83 loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize)  in vfs_setpos()
102 static int must_set_pos(struct file *file, loff_t *offset, int whence, loff_t eof)  in must_set_pos()
158 loff_t
159 generic_file_llseek_size(struct file *file, loff_t offset, int whence,  in generic_file_llseek_size()
160 		loff_t maxsize, loff_t eof)  in generic_file_llseek_size()
201 loff_t generic_llseek_cookie(struct file *file, loff_t offset, int whence,  in generic_llseek_cookie()
205 	loff_t maxsize = inode->i_sb->s_maxbytes;  in generic_llseek_cookie()
206 	loff_t eof = i_size_read(inode);  in generic_llseek_cookie()
244 loff_t generic_file_llseek(struct file *file, loff_t offset, int whence)  in generic_file_llseek()
262 loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size)  in fixed_size_llseek()
281 loff_t no_seek_end_llseek(struct file *file, loff_t offset, int whence)  in no_seek_end_llseek()
301 loff_t no_seek_end_llseek_size(struct file *file, loff_t offset, int whence, loff_t size)  in no_seek_end_llseek_size()
324 loff_t noop_llseek(struct file *file, loff_t offset, int whence)  in noop_llseek()
330 loff_t default_llseek(struct file *file, loff_t offset, int whence)  in default_llseek()
333 	loff_t retval;  in default_llseek()
383 loff_t vfs_llseek(struct file *file, loff_t offset, int whence)  in vfs_llseek()
400 		loff_t res = vfs_llseek(fd_file(f), offset, whence);  in ksys_lseek()
402 		if (res != (loff_t)retval)  in ksys_lseek()
423 		unsigned long, offset_low, loff_t __user *, result,  in SYSCALL_DEFINE5()
428 	loff_t offset;  in SYSCALL_DEFINE5()
436 	offset = vfs_llseek(fd_file(f), ((loff_t) offset_high << 32) | offset_low,  in SYSCALL_DEFINE5()
449 int rw_verify_area(int read_write, struct file *file, const loff_t *ppos, size_t count)  in rw_verify_area()
458 		loff_t pos = *ppos;  in rw_verify_area()
465 		} else if (unlikely((loff_t) (pos + count) < 0)) {  in rw_verify_area()
479 static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)  in new_sync_read()
504 ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)  in __kernel_read()
539 ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)  in kernel_read()
550 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)  in vfs_read()
581 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)  in new_sync_write()
599 ssize_t __kernel_write_iter(struct file *file, struct iov_iter *from, loff_t *pos)  in __kernel_write_iter()
629 ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos)  in __kernel_write()
649 			    loff_t *pos)  in kernel_write()
664 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)  in vfs_write()
697 static inline loff_t *file_ppos(struct file *file)  in file_ppos()
708 		loff_t pos, *ppos = file_ppos(fd_file(f));  in ksys_read()
731 		loff_t pos, *ppos = file_ppos(fd_file(f));  in ksys_write()
751 		     loff_t pos)  in ksys_pread64()
767 			size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
781 		      size_t count, loff_t pos)  in ksys_pwrite64()
797 			 size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
811 		loff_t *ppos, int type, rwf_t flags)  in do_iter_readv_writev()
834 		loff_t *ppos, int type, rwf_t flags)  in do_loop_readv_writev()
894 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos,  in vfs_iter_read()
957 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos,  in vfs_iter_write()
989 			 unsigned long vlen, loff_t *pos, rwf_t flags)  in vfs_readv()
1027 			  unsigned long vlen, loff_t *pos, rwf_t flags)  in vfs_writev()
1073 		loff_t pos, *ppos = file_ppos(fd_file(f));  in do_readv()
1096 		loff_t pos, *ppos = file_ppos(fd_file(f));  in do_writev()
1112 static inline loff_t pos_from_hilo(unsigned long high, unsigned long low)  in pos_from_hilo()
1115 	return (((loff_t)high << HALF_LONG_BITS) << HALF_LONG_BITS) | low;  in pos_from_hilo()
1119 			 unsigned long vlen, loff_t pos, rwf_t flags)  in do_preadv()
1140 			  unsigned long vlen, loff_t pos, rwf_t flags)  in do_pwritev()
1175 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
1184 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE6()
1195 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
1204 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE6()
1221 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1231 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1239 		unsigned long, vlen, loff_t, pos, rwf_t, flags)  in COMPAT_SYSCALL_DEFINE5()  argument
1252 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE6()
1262 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1272 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1280 		unsigned long, vlen, loff_t, pos, rwf_t, flags)  in COMPAT_SYSCALL_DEFINE5()  argument
1292 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE6()
1300 static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,  in do_sendfile()
1301 			   size_t count, loff_t max)  in do_sendfile()
1305 	loff_t pos;  in do_sendfile()
1306 	loff_t out_pos;  in do_sendfile()
1398 	loff_t pos;  in SYSCALL_DEFINE4()
1415 SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd, loff_t __user *, offset, size_t, count)  in SYSCALL_DEFINE4()
1417 	loff_t pos;  in SYSCALL_DEFINE4()
1421 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in SYSCALL_DEFINE4()
1436 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1456 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1460 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in COMPAT_SYSCALL_DEFINE4()
1479 static int generic_copy_file_checks(struct file *file_in, loff_t pos_in,  in generic_copy_file_checks()
1480 				    struct file *file_out, loff_t pos_out,  in generic_copy_file_checks()
1486 	loff_t size_in;  in generic_copy_file_checks()
1550 ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,  in vfs_copy_file_range()
1551 			    struct file *file_out, loff_t pos_out,  in vfs_copy_file_range()
1591 				min_t(loff_t, MAX_RW_COUNT, len),  in vfs_copy_file_range()
1642 SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,  in SYSCALL_DEFINE6()
1643 		int, fd_out, loff_t __user *, off_out,  in SYSCALL_DEFINE6()
1646 	loff_t pos_in;  in SYSCALL_DEFINE6()
1647 	loff_t pos_out;  in SYSCALL_DEFINE6()
1659 		if (copy_from_user(&pos_in, off_in, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1666 		if (copy_from_user(&pos_out, off_out, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1682 			if (copy_to_user(off_in, &pos_in, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1689 			if (copy_to_user(off_out, &pos_out, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1703 int generic_write_check_limits(struct file *file, loff_t pos, loff_t *count)  in generic_write_check_limits()
1706 	loff_t max_size = inode->i_sb->s_maxbytes;  in generic_write_check_limits()
1707 	loff_t limit = rlimit(RLIMIT_FSIZE);  in generic_write_check_limits()
1730 int generic_write_checks_count(struct kiocb *iocb, loff_t *count)  in generic_write_checks_count()
1762 	loff_t count = iov_iter_count(from);  in generic_write_checks()