64 	struct fuse_file *ff;  in fuse_file_alloc()  local
66 	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT);  in fuse_file_alloc()
67 	if (unlikely(!ff))  in fuse_file_alloc()
70 	ff->fc = fc;  in fuse_file_alloc()
71 	ff->release_args = kzalloc(sizeof(*ff->release_args),  in fuse_file_alloc()
73 	if (!ff->release_args) {  in fuse_file_alloc()
74 		kfree(ff);  in fuse_file_alloc()
78 	INIT_LIST_HEAD(&ff->write_entry);  in fuse_file_alloc()
79 	mutex_init(&ff->readdir.lock);  in fuse_file_alloc()
80 	refcount_set(&ff->count, 1);  in fuse_file_alloc()
81 	RB_CLEAR_NODE(&ff->polled_node);  in fuse_file_alloc()
82 	init_waitqueue_head(&ff->poll_wait);  in fuse_file_alloc()
84 	ff->kh = atomic64_inc_return(&fc->khctr);  in fuse_file_alloc()
86 	return ff;  in fuse_file_alloc()
89 void fuse_file_free(struct fuse_file *ff)  in fuse_file_free()  argument
91 	kfree(ff->release_args);  in fuse_file_free()
92 	mutex_destroy(&ff->readdir.lock);  in fuse_file_free()
93 	kfree(ff);  in fuse_file_free()
96 static struct fuse_file *fuse_file_get(struct fuse_file *ff)  in fuse_file_get()  argument
98 	refcount_inc(&ff->count);  in fuse_file_get()
99 	return ff;  in fuse_file_get()
111 static void fuse_file_put(struct fuse_file *ff, bool sync, bool isdir)  in fuse_file_put()  argument
113 	if (refcount_dec_and_test(&ff->count)) {  in fuse_file_put()
114 		struct fuse_args *args = &ff->release_args->args;  in fuse_file_put()
116 		if (isdir ? ff->fc->no_opendir : ff->fc->no_open) {  in fuse_file_put()
118 			fuse_release_end(ff->fc, args, 0);  in fuse_file_put()
120 			fuse_simple_request(ff->fc, args);  in fuse_file_put()
121 			fuse_release_end(ff->fc, args, 0);  in fuse_file_put()
124 			if (fuse_simple_background(ff->fc, args,  in fuse_file_put()
126 				fuse_release_end(ff->fc, args, -ENOTCONN);  in fuse_file_put()
128 		kfree(ff);  in fuse_file_put()
135 	struct fuse_file *ff;  in fuse_do_open()  local
138 	ff = fuse_file_alloc(fc);  in fuse_do_open()
139 	if (!ff)  in fuse_do_open()
142 	ff->fh = 0;  in fuse_do_open()
144 	ff->open_flags = FOPEN_KEEP_CACHE | (isdir ? FOPEN_CACHE_DIR : 0);  in fuse_do_open()
151 			ff->fh = outarg.fh;  in fuse_do_open()
152 			ff->open_flags = outarg.open_flags;  in fuse_do_open()
155 			fuse_file_free(ff);  in fuse_do_open()
166 		ff->open_flags &= ~FOPEN_DIRECT_IO;  in fuse_do_open()
168 	ff->nodeid = nodeid;  in fuse_do_open()
169 	file->private_data = ff;  in fuse_do_open()
179 	struct fuse_file *ff = file->private_data;  in fuse_link_write_file()  local
185 	if (list_empty(&ff->write_entry))  in fuse_link_write_file()
186 		list_add(&ff->write_entry, &fi->write_files);  in fuse_link_write_file()
192 	struct fuse_file *ff = file->private_data;  in fuse_finish_open()  local
195 	if (!(ff->open_flags & FOPEN_KEEP_CACHE))  in fuse_finish_open()
197 	if (ff->open_flags & FOPEN_STREAM)  in fuse_finish_open()
199 	else if (ff->open_flags & FOPEN_NONSEEKABLE)  in fuse_finish_open()
246 static void fuse_prepare_release(struct fuse_inode *fi, struct fuse_file *ff,  in fuse_prepare_release()  argument
249 	struct fuse_conn *fc = ff->fc;  in fuse_prepare_release()
250 	struct fuse_release_args *ra = ff->release_args;  in fuse_prepare_release()
255 		list_del(&ff->write_entry);  in fuse_prepare_release()
259 	if (!RB_EMPTY_NODE(&ff->polled_node))  in fuse_prepare_release()
260 		rb_erase(&ff->polled_node, &fc->polled_files);  in fuse_prepare_release()
263 	wake_up_interruptible_all(&ff->poll_wait);  in fuse_prepare_release()
265 	ra->inarg.fh = ff->fh;  in fuse_prepare_release()
271 	ra->args.nodeid = ff->nodeid;  in fuse_prepare_release()
279 	struct fuse_file *ff = file->private_data;  in fuse_release_common()  local
280 	struct fuse_release_args *ra = ff->release_args;  in fuse_release_common()
283 	fuse_prepare_release(fi, ff, file->f_flags, opcode);  in fuse_release_common()
285 	if (ff->flock) {  in fuse_release_common()
287 		ra->inarg.lock_owner = fuse_lock_owner_id(ff->fc,  in fuse_release_common()
302 	fuse_file_put(ff, ff->fc->destroy, isdir);  in fuse_release_common()
324 void fuse_sync_release(struct fuse_inode *fi, struct fuse_file *ff, int flags)  in fuse_sync_release()  argument
326 	WARN_ON(refcount_read(&ff->count) > 1);  in fuse_sync_release()
327 	fuse_prepare_release(fi, ff, flags, FUSE_RELEASE);  in fuse_sync_release()
332 	fuse_file_put(ff, true, false);  in fuse_sync_release()
440 	struct fuse_file *ff = file->private_data;  in fuse_flush()  local
464 	inarg.fh = ff->fh;  in fuse_flush()
486 	struct fuse_file *ff = file->private_data;  in fuse_fsync_common()  local
491 	inarg.fh = ff->fh;  in fuse_fsync_common()
554 	struct fuse_file *ff = file->private_data;  in fuse_read_args_fill()  local
557 	ia->read.in.fh = ff->fh;  in fuse_read_args_fill()
562 	args->nodeid = ff->nodeid;  in fuse_read_args_fill()
724 	struct fuse_file *ff = file->private_data;  in fuse_send_read()  local
725 	struct fuse_conn *fc = ff->fc;  in fuse_send_read()
870 	if (ia->ff)  in fuse_readpages_end()
871 		fuse_file_put(ia->ff, false, false);  in fuse_readpages_end()
878 	struct fuse_file *ff = file->private_data;  in fuse_send_readpages()  local
879 	struct fuse_conn *fc = ff->fc;  in fuse_send_readpages()
891 		ia->ff = fuse_file_get(ff);  in fuse_send_readpages()
1003 static void fuse_write_args_fill(struct fuse_io_args *ia, struct fuse_file *ff,  in fuse_write_args_fill()  argument
1008 	ia->write.in.fh = ff->fh;  in fuse_write_args_fill()
1012 	args->nodeid = ff->nodeid;  in fuse_write_args_fill()
1014 	if (ff->fc->minor < 9)  in fuse_write_args_fill()
1042 	struct fuse_file *ff = file->private_data;  in fuse_send_write()  local
1043 	struct fuse_conn *fc = ff->fc;  in fuse_send_write()
1047 	fuse_write_args_fill(ia, ff, pos, count);  in fuse_send_write()
1087 	struct fuse_file *ff = file->private_data;  in fuse_send_write_pages()  local
1088 	struct fuse_conn *fc = ff->fc;  in fuse_send_write_pages()
1095 	fuse_write_args_fill(ia, ff, pos, count);  in fuse_send_write_pages()
1410 	struct fuse_file *ff = file->private_data;  in fuse_direct_io()  local
1411 	struct fuse_conn *fc = ff->fc;  in fuse_direct_io()
1547 	struct fuse_file *ff = file->private_data;  in fuse_file_read_iter()  local
1552 	if (!(ff->open_flags & FOPEN_DIRECT_IO))  in fuse_file_read_iter()
1561 	struct fuse_file *ff = file->private_data;  in fuse_file_write_iter()  local
1566 	if (!(ff->open_flags & FOPEN_DIRECT_IO))  in fuse_file_write_iter()
1580 	if (wpa->ia.ff)  in fuse_writepage_free()
1581 		fuse_file_put(wpa->ia.ff, false, false);  in fuse_writepage_free()
1701 		next->ia.ff = fuse_file_get(wpa->ia.ff);  in fuse_writepage_end()
1738 	struct fuse_file *ff = NULL;  in __fuse_write_file_get()  local
1742 		ff = list_entry(fi->write_files.next, struct fuse_file,  in __fuse_write_file_get()
1744 		fuse_file_get(ff);  in __fuse_write_file_get()
1748 	return ff;  in __fuse_write_file_get()
1754 	struct fuse_file *ff = __fuse_write_file_get(fc, fi);  in fuse_write_file_get()  local
1755 	WARN_ON(!ff);  in fuse_write_file_get()
1756 	return ff;  in fuse_write_file_get()
1763 	struct fuse_file *ff;  in fuse_write_inode()  local
1766 	ff = __fuse_write_file_get(fc, fi);  in fuse_write_inode()
1767 	err = fuse_flush_times(inode, ff);  in fuse_write_inode()
1768 	if (ff)  in fuse_write_inode()
1769 		fuse_file_put(ff, false, false);  in fuse_write_inode()
1816 	wpa->ia.ff = fuse_write_file_get(fc, fi);  in fuse_writepage_locked()
1817 	if (!wpa->ia.ff)  in fuse_writepage_locked()
1820 	fuse_write_args_fill(&wpa->ia, wpa->ia.ff, page_offset(page), 0);  in fuse_writepage_locked()
1881 	struct fuse_file *ff;  member
1921 	wpa->ia.ff = fuse_file_get(data->ff);  in fuse_writepages_send()
2002 	if (!data->ff) {  in fuse_writepages_fill()
2004 		data->ff = fuse_write_file_get(fc, fi);  in fuse_writepages_fill()
2005 		if (!data->ff)  in fuse_writepages_fill()
2058 		fuse_write_args_fill(&wpa->ia, data->ff, page_offset(page), 0);  in fuse_writepages_fill()
2118 	data.ff = NULL;  in fuse_writepages()
2134 	if (data.ff)  in fuse_writepages()
2135 		fuse_file_put(data.ff, false, false);  in fuse_writepages()
2280 	struct fuse_file *ff = file->private_data;  in fuse_file_mmap()  local
2282 	if (ff->open_flags & FOPEN_DIRECT_IO) {  in fuse_file_mmap()
2339 	struct fuse_file *ff = file->private_data;  in fuse_lk_fill()  local
2342 	inarg->fh = ff->fh;  in fuse_lk_fill()
2439 		struct fuse_file *ff = file->private_data;  in fuse_file_flock()  local
2442 		ff->flock = true;  in fuse_file_flock()
2483 	struct fuse_file *ff = file->private_data;  in fuse_lseek()  local
2486 		.fh = ff->fh,  in fuse_lseek()
2497 	args.nodeid = ff->nodeid;  in fuse_lseek()
2692 	struct fuse_file *ff = file->private_data;  in fuse_do_ioctl()  local
2693 	struct fuse_conn *fc = ff->fc;  in fuse_do_ioctl()
2695 		.fh = ff->fh,  in fuse_do_ioctl()
2779 	ap.args.nodeid = ff->nodeid;  in fuse_do_ioctl()
2914 		struct fuse_file *ff;  in fuse_find_polled_node()  local
2917 		ff = rb_entry(last, struct fuse_file, polled_node);  in fuse_find_polled_node()
2919 		if (kh < ff->kh)  in fuse_find_polled_node()
2921 		else if (kh > ff->kh)  in fuse_find_polled_node()
2939 				      struct fuse_file *ff)  in fuse_register_polled_file()  argument
2942 	if (RB_EMPTY_NODE(&ff->polled_node)) {  in fuse_register_polled_file()
2945 		link = fuse_find_polled_node(fc, ff->kh, &parent);  in fuse_register_polled_file()
2947 		rb_link_node(&ff->polled_node, parent, link);  in fuse_register_polled_file()
2948 		rb_insert_color(&ff->polled_node, &fc->polled_files);  in fuse_register_polled_file()
2955 	struct fuse_file *ff = file->private_data;  in fuse_file_poll()  local
2956 	struct fuse_conn *fc = ff->fc;  in fuse_file_poll()
2957 	struct fuse_poll_in inarg = { .fh = ff->fh, .kh = ff->kh };  in fuse_file_poll()
2965 	poll_wait(file, &ff->poll_wait, wait);  in fuse_file_poll()
2972 	if (waitqueue_active(&ff->poll_wait)) {  in fuse_file_poll()
2974 		fuse_register_polled_file(fc, ff);  in fuse_file_poll()
2978 	args.nodeid = ff->nodeid;  in fuse_file_poll()
3011 		struct fuse_file *ff;  in fuse_notify_poll_wakeup()  local
3013 		ff = rb_entry(*link, struct fuse_file, polled_node);  in fuse_notify_poll_wakeup()
3014 		wake_up_interruptible_sync(&ff->poll_wait);  in fuse_notify_poll_wakeup()
3046 	struct fuse_file *ff = file->private_data;  in fuse_direct_IO()  local
3047 	bool async_dio = ff->fc->async_dio;  in fuse_direct_IO()
3066 		iov_iter_truncate(iter, fuse_round_up(ff->fc, i_size - offset));  in fuse_direct_IO()
3150 	struct fuse_file *ff = file->private_data;  in fuse_file_fallocate()  local
3153 	struct fuse_conn *fc = ff->fc;  in fuse_file_fallocate()
3156 		.fh = ff->fh,  in fuse_file_fallocate()
3193 	args.nodeid = ff->nodeid;  in fuse_file_fallocate()