ext4: ext4_inode_info diet
Generic inode has unused i_private pointer which may be used as cur_aio_dio
storage.
TODO: If cur_aio_dio will be passed as an argument to get_block_t this allow
to have concurent AIO_DIO requests.
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4df5e95..a995886 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3056,7 +3056,7 @@
* hook to the iocb.
*/
iocb->private = NULL;
- EXT4_I(inode)->cur_aio_dio = NULL;
+ ext4_inode_aio_set(inode, NULL);
if (!is_sync_kiocb(iocb)) {
ext4_io_end_t *io_end =
ext4_init_io_end(inode, GFP_NOFS);
@@ -3073,7 +3073,7 @@
* is a unwritten extents needs to be converted
* when IO is completed.
*/
- EXT4_I(inode)->cur_aio_dio = iocb->private;
+ ext4_inode_aio_set(inode, io_end);
}
if (overwrite)
@@ -3093,7 +3093,7 @@
NULL,
DIO_LOCKING);
if (iocb->private)
- EXT4_I(inode)->cur_aio_dio = NULL;
+ ext4_inode_aio_set(inode, NULL);
/*
* The io_end structure takes a reference to the inode,
* that structure needs to be destroyed and the