54 loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize)  in vfs_setpos()
85 loff_t
86 generic_file_llseek_size(struct file *file, loff_t offset, int whence,  in generic_file_llseek_size()
87 		loff_t maxsize, loff_t eof)  in generic_file_llseek_size()
144 loff_t generic_file_llseek(struct file *file, loff_t offset, int whence)  in generic_file_llseek()
162 loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size)  in fixed_size_llseek()
181 loff_t no_seek_end_llseek(struct file *file, loff_t offset, int whence)  in no_seek_end_llseek()
201 loff_t no_seek_end_llseek_size(struct file *file, loff_t offset, int whence, loff_t size)  in no_seek_end_llseek_size()
224 loff_t noop_llseek(struct file *file, loff_t offset, int whence)  in noop_llseek()
230 loff_t default_llseek(struct file *file, loff_t offset, int whence)  in default_llseek()
233 	loff_t retval;  in default_llseek()
285 loff_t vfs_llseek(struct file *file, loff_t offset, int whence)  in vfs_llseek()
302 		loff_t res = vfs_llseek(f.file, offset, whence);  in ksys_lseek()
304 		if (res != (loff_t)retval)  in ksys_lseek()
326 		unsigned long, offset_low, loff_t __user *, result,  in SYSCALL_DEFINE5()
331 	loff_t offset;  in SYSCALL_DEFINE5()
340 	offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low,  in SYSCALL_DEFINE5()
355 int rw_verify_area(int read_write, struct file *file, const loff_t *ppos, size_t count)  in rw_verify_area()
361 		loff_t pos = *ppos;  in rw_verify_area()
368 		} else if (unlikely((loff_t) (pos + count) < 0)) {  in rw_verify_area()
379 static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)  in new_sync_read()
404 ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)  in __kernel_read()
439 ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)  in kernel_read()
450 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)  in vfs_read()
481 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)  in new_sync_write()
499 ssize_t __kernel_write_iter(struct file *file, struct iov_iter *from, loff_t *pos)  in __kernel_write_iter()
529 ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos)  in __kernel_write()
549 			    loff_t *pos)  in kernel_write()
564 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)  in vfs_write()
597 static inline loff_t *file_ppos(struct file *file)  in file_ppos()
608 		loff_t pos, *ppos = file_ppos(f.file);  in ksys_read()
632 		loff_t pos, *ppos = file_ppos(f.file);  in ksys_write()
653 		     loff_t pos)  in ksys_pread64()
673 			size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
687 		      size_t count, loff_t pos)  in ksys_pwrite64()
707 			 size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
721 		loff_t *ppos, int type, rwf_t flags)  in do_iter_readv_writev()
744 		loff_t *ppos, int type, rwf_t flags)  in do_loop_readv_writev()
777 		loff_t *pos, rwf_t flags)  in do_iter_read()
832 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos,  in vfs_iter_read()
842 		loff_t *pos, rwf_t flags)  in do_iter_write()
896 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos,  in vfs_iter_write()
906 		  unsigned long vlen, loff_t *pos, rwf_t flags)  in vfs_readv()
923 		   unsigned long vlen, loff_t *pos, rwf_t flags)  in vfs_writev()
947 		loff_t pos, *ppos = file_ppos(f.file);  in do_readv()
971 		loff_t pos, *ppos = file_ppos(f.file);  in do_writev()
988 static inline loff_t pos_from_hilo(unsigned long high, unsigned long low)  in pos_from_hilo()
991 	return (((loff_t)high << HALF_LONG_BITS) << HALF_LONG_BITS) | low;  in pos_from_hilo()
995 			 unsigned long vlen, loff_t pos, rwf_t flags)  in do_preadv()
1018 			  unsigned long vlen, loff_t pos, rwf_t flags)  in do_pwritev()
1055 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
1064 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE6()
1075 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
1084 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE6()
1101 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1111 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1119 		unsigned long, vlen, loff_t, pos, rwf_t, flags)  in COMPAT_SYSCALL_DEFINE5()  argument
1132 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE6()
1142 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1152 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1160 		unsigned long, vlen, loff_t, pos, rwf_t, flags)  in COMPAT_SYSCALL_DEFINE5()  argument
1172 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE6()
1180 static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,  in do_sendfile()
1181 		  	   size_t count, loff_t max)  in do_sendfile()
1186 	loff_t pos;  in do_sendfile()
1187 	loff_t out_pos;  in do_sendfile()
1291 	loff_t pos;  in SYSCALL_DEFINE4()
1308 SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd, loff_t __user *, offset, size_t, count)  in SYSCALL_DEFINE4()
1310 	loff_t pos;  in SYSCALL_DEFINE4()
1314 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in SYSCALL_DEFINE4()
1329 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1349 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1353 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in COMPAT_SYSCALL_DEFINE4()
1386 ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,  in generic_copy_file_range()
1387 				struct file *file_out, loff_t pos_out,  in generic_copy_file_range()
1404 static int generic_copy_file_checks(struct file *file_in, loff_t pos_in,  in generic_copy_file_checks()
1405 				    struct file *file_out, loff_t pos_out,  in generic_copy_file_checks()
1411 	loff_t size_in;  in generic_copy_file_checks()
1475 ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,  in vfs_copy_file_range()
1476 			    struct file *file_out, loff_t pos_out,  in vfs_copy_file_range()
1519 				min_t(loff_t, MAX_RW_COUNT, len),  in vfs_copy_file_range()
1558 SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,  in SYSCALL_DEFINE6()
1559 		int, fd_out, loff_t __user *, off_out,  in SYSCALL_DEFINE6()
1562 	loff_t pos_in;  in SYSCALL_DEFINE6()
1563 	loff_t pos_out;  in SYSCALL_DEFINE6()
1578 		if (copy_from_user(&pos_in, off_in, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1585 		if (copy_from_user(&pos_out, off_out, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1602 			if (copy_to_user(off_in, &pos_in, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1609 			if (copy_to_user(off_out, &pos_out, sizeof(loff_t)))  in SYSCALL_DEFINE6()
1629 int generic_write_check_limits(struct file *file, loff_t pos, loff_t *count)  in generic_write_check_limits()
1632 	loff_t max_size = inode->i_sb->s_maxbytes;  in generic_write_check_limits()
1633 	loff_t limit = rlimit(RLIMIT_FSIZE);  in generic_write_check_limits()
1655 int generic_write_checks_count(struct kiocb *iocb, loff_t *count)  in generic_write_checks_count()
1687 	loff_t count = iov_iter_count(from);  in generic_write_checks()