24 typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
53 loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize)  in vfs_setpos()
84 loff_t
85 generic_file_llseek_size(struct file *file, loff_t offset, int whence,  in generic_file_llseek_size()
86 		loff_t maxsize, loff_t eof)  in generic_file_llseek_size()
143 loff_t generic_file_llseek(struct file *file, loff_t offset, int whence)  in generic_file_llseek()
161 loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size)  in fixed_size_llseek()
184 loff_t noop_llseek(struct file *file, loff_t offset, int whence)  in noop_llseek()
190 loff_t no_llseek(struct file *file, loff_t offset, int whence)  in no_llseek()
196 loff_t default_llseek(struct file *file, loff_t offset, int whence)  in default_llseek()
199 	loff_t retval;  in default_llseek()
251 loff_t vfs_llseek(struct file *file, loff_t offset, int whence)  in vfs_llseek()
253 	loff_t (*fn)(struct file *, loff_t, int);  in vfs_llseek()
285 		loff_t res = vfs_llseek(f.file, offset, whence);  in SYSCALL_DEFINE3()
287 		if (res != (loff_t)retval)  in SYSCALL_DEFINE3()
303 		unsigned long, offset_low, loff_t __user *, result,  in SYSCALL_DEFINE5()
308 	loff_t offset;  in SYSCALL_DEFINE5()
317 	offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low,  in SYSCALL_DEFINE5()
332 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos)  in vfs_iter_read()
352 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos)  in vfs_iter_write()
377 int rw_verify_area(int read_write, struct file *file, const loff_t *ppos, size_t count)  in rw_verify_area()
380 	loff_t pos;  in rw_verify_area()
392 	} else if (unlikely((loff_t) (pos + count) < 0)) {  in rw_verify_area()
411 static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)  in new_sync_read()
429 		   loff_t *pos)  in __vfs_read()
440 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)  in vfs_read()
467 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)  in new_sync_write()
486 		    loff_t *pos)  in __vfs_write()
497 ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)  in __kernel_write()
523 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)  in vfs_write()
552 static inline loff_t file_pos_read(struct file *file)  in file_pos_read()
557 static inline void file_pos_write(struct file *file, loff_t pos)  in file_pos_write()
568 		loff_t pos = file_pos_read(f.file);  in SYSCALL_DEFINE3()
584 		loff_t pos = file_pos_read(f.file);  in SYSCALL_DEFINE3()
595 			size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
615 			 size_t, count, loff_t, pos)  in SYSCALL_DEFINE4()  argument
656 		loff_t *ppos, iter_fn_t fn)  in do_iter_readv_writev()
672 		loff_t *ppos, io_fn_t fn)  in do_loop_readv_writev()
776 			       unsigned long nr_segs, loff_t *pos)  in do_readv_writev()
827 		  unsigned long vlen, loff_t *pos)  in vfs_readv()
840 		   unsigned long vlen, loff_t *pos)  in vfs_writev()
859 		loff_t pos = file_pos_read(f.file);  in SYSCALL_DEFINE3()
879 		loff_t pos = file_pos_read(f.file);  in SYSCALL_DEFINE3()
892 static inline loff_t pos_from_hilo(unsigned long high, unsigned long low)  in pos_from_hilo()
895 	return (((loff_t)high << HALF_LONG_BITS) << HALF_LONG_BITS) | low;  in pos_from_hilo()
901 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
925 	loff_t pos = pos_from_hilo(pos_h, pos_l);  in SYSCALL_DEFINE5()
950 			       unsigned long nr_segs, loff_t *pos)  in compat_do_readv_writev()
1002 			   unsigned long vlen, loff_t *pos)  in compat_readv()
1028 	loff_t pos;  in COMPAT_SYSCALL_DEFINE3()
1042 				  unsigned long vlen, loff_t pos)  in __compat_sys_preadv64()
1062 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1072 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1079 			    unsigned long vlen, loff_t *pos)  in compat_writev()
1105 	loff_t pos;  in COMPAT_SYSCALL_DEFINE3()
1119 				   unsigned long vlen, loff_t pos)  in __compat_sys_pwritev64()
1139 		unsigned long, vlen, loff_t, pos)  in COMPAT_SYSCALL_DEFINE4()  argument
1149 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;  in COMPAT_SYSCALL_DEFINE5()
1155 static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,  in do_sendfile()
1156 		  	   size_t count, loff_t max)  in do_sendfile()
1160 	loff_t pos;  in do_sendfile()
1161 	loff_t out_pos;  in do_sendfile()
1257 	loff_t pos;  in SYSCALL_DEFINE4()
1274 SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd, loff_t __user *, offset, size_t, count)  in SYSCALL_DEFINE4()
1276 	loff_t pos;  in SYSCALL_DEFINE4()
1280 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in SYSCALL_DEFINE4()
1295 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1315 	loff_t pos;  in COMPAT_SYSCALL_DEFINE4()
1319 		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))  in COMPAT_SYSCALL_DEFINE4()