45 static ssize_t nfs_file_splice_read(struct file *filp, loff_t *ppos,
55 static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl);
56 static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl);
118 nfs_file_open(struct inode *inode, struct file *filp)  in nfs_file_open()  argument
123 			filp->f_path.dentry->d_parent->d_name.name,  in nfs_file_open()
124 			filp->f_path.dentry->d_name.name);  in nfs_file_open()
126 	res = nfs_check_flags(filp->f_flags);  in nfs_file_open()
131 	res = nfs_open(inode, filp);  in nfs_file_open()
136 nfs_file_release(struct inode *inode, struct file *filp)  in nfs_file_release()  argument
138 	struct dentry *dentry = filp->f_path.dentry;  in nfs_file_release()
145 	if (filp->f_mode & FMODE_WRITE)  in nfs_file_release()
148 	return nfs_release(inode, filp);  in nfs_file_release()
162 static int nfs_revalidate_file_size(struct inode *inode, struct file *filp)  in nfs_revalidate_file_size()  argument
169 	if (filp->f_flags & O_DIRECT)  in nfs_revalidate_file_size()
179 static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)  in nfs_file_llseek()  argument
184 			filp->f_path.dentry->d_parent->d_name.name,  in nfs_file_llseek()
185 			filp->f_path.dentry->d_name.name,  in nfs_file_llseek()
190 		struct inode *inode = filp->f_mapping->host;  in nfs_file_llseek()
192 		int retval = nfs_revalidate_file_size(inode, filp);  in nfs_file_llseek()
197 		loff = generic_file_llseek_unlocked(filp, offset, origin);  in nfs_file_llseek()
200 		loff = generic_file_llseek_unlocked(filp, offset, origin);  in nfs_file_llseek()
279 nfs_file_splice_read(struct file *filp, loff_t *ppos,  in nfs_file_splice_read()  argument
283 	struct dentry *dentry = filp->f_path.dentry;  in nfs_file_splice_read()
291 	res = nfs_revalidate_mapping(inode, filp->f_mapping);  in nfs_file_splice_read()
293 		res = generic_file_splice_read(filp, ppos, pipe, count, flags);  in nfs_file_splice_read()
456 	struct file *filp = vma->vm_file;  in nfs_vm_page_mkwrite()  local
457 	struct dentry *dentry = filp->f_path.dentry;  in nfs_vm_page_mkwrite()
464 		filp->f_mapping->host->i_ino,  in nfs_vm_page_mkwrite()
477 	ret = nfs_flush_incompatible(filp, page);  in nfs_vm_page_mkwrite()
481 	ret = nfs_updatepage(filp, page, 0, pagelen);  in nfs_vm_page_mkwrite()
494 static int nfs_need_sync_write(struct file *filp, struct inode *inode)  in nfs_need_sync_write()  argument
498 	if (IS_SYNC(inode) || (filp->f_flags & O_SYNC))  in nfs_need_sync_write()
500 	ctx = nfs_file_open_context(filp);  in nfs_need_sync_write()
553 static int do_getlk(struct file *filp, int cmd, struct file_lock *fl)  in do_getlk()  argument
555 	struct inode *inode = filp->f_mapping->host;  in do_getlk()
560 	posix_test_lock(filp, fl);  in do_getlk()
572 	status = NFS_PROTO(inode)->lock(filp, cmd, fl);  in do_getlk()
601 static int do_unlk(struct file *filp, int cmd, struct file_lock *fl)  in do_unlk()  argument
603 	struct inode *inode = filp->f_mapping->host;  in do_unlk()
610 	nfs_sync_mapping(filp->f_mapping);  in do_unlk()
619 		status = NFS_PROTO(inode)->lock(filp, cmd, fl);  in do_unlk()
621 		status = do_vfs_lock(filp, fl);  in do_unlk()
626 static int do_setlk(struct file *filp, int cmd, struct file_lock *fl)  in do_setlk()  argument
628 	struct inode *inode = filp->f_mapping->host;  in do_setlk()
635 	status = nfs_sync_mapping(filp->f_mapping);  in do_setlk()
642 		status = NFS_PROTO(inode)->lock(filp, cmd, fl);  in do_setlk()
644 		status = do_vfs_lock(filp, fl);  in do_setlk()
652 	nfs_sync_mapping(filp->f_mapping);  in do_setlk()
662 static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl)  in nfs_lock()  argument
664 	struct inode *inode = filp->f_mapping->host;  in nfs_lock()
668 			filp->f_path.dentry->d_parent->d_name.name,  in nfs_lock()
669 			filp->f_path.dentry->d_name.name,  in nfs_lock()
686 		ret = do_getlk(filp, cmd, fl);  in nfs_lock()
688 		ret = do_unlk(filp, cmd, fl);  in nfs_lock()
690 		ret = do_setlk(filp, cmd, fl);  in nfs_lock()
698 static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)  in nfs_flock()  argument
701 			filp->f_path.dentry->d_parent->d_name.name,  in nfs_flock()
702 			filp->f_path.dentry->d_name.name,  in nfs_flock()
709 	fl->fl_owner = (fl_owner_t)filp;  in nfs_flock()
714 		return do_unlk(filp, cmd, fl);  in nfs_flock()
715 	return do_setlk(filp, cmd, fl);  in nfs_flock()