Commit a7c1b990 authored by Tejun Heo's avatar Tejun Heo Committed by Miklos Szeredi
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fuse: implement nonseekable open 



Let the client request nonseekable open using FOPEN_NONSEEKABLE and
call nonseekable_open() on the file if requested.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
parent 29d434b3

fs/fuse/file.c

+2 −0
Original line number Diff line number Diff line
@@ -101,6 +101,8 @@ void fuse_finish_open(struct inode *inode, struct file *file, 
		file->f_op = &fuse_direct_io_file_operations;

	if (!(outarg->open_flags & FOPEN_KEEP_CACHE))

		invalidate_inode_pages2(inode->i_mapping);

	if (outarg->open_flags & FOPEN_NONSEEKABLE)

		nonseekable_open(inode, file);

	ff->fh = outarg->fh;

	file->private_data = fuse_file_get(ff);

}

include/linux/fuse.h

+6 −1
Original line number Diff line number Diff line
@@ -17,6 +17,9 @@ 
 *  - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in

 *  - add blksize field to fuse_attr

 *  - add file flags field to fuse_read_in and fuse_write_in

 *

 * 7.10

 *  - add nonseekable open flag

 */



#ifndef _LINUX_FUSE_H
@@ -29,7 +32,7 @@ 
#define FUSE_KERNEL_VERSION 7



/** Minor version number of this interface */

#define FUSE_KERNEL_MINOR_VERSION 9

#define FUSE_KERNEL_MINOR_VERSION 10



/** The node ID of the root inode */

#define FUSE_ROOT_ID 1
@@ -101,9 +104,11 @@ struct fuse_file_lock { 
 *

 * FOPEN_DIRECT_IO: bypass page cache for this open file

 * FOPEN_KEEP_CACHE: don't invalidate the data cache on open

 * FOPEN_NONSEEKABLE: the file is not seekable

 */

#define FOPEN_DIRECT_IO		(1 << 0)

#define FOPEN_KEEP_CACHE	(1 << 1)

#define FOPEN_NONSEEKABLE	(1 << 2)



/**

 * INIT request/reply flags