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>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 8f08c7b77179..a1f56c3e773b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3618,7 +3618,7 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
 {
         int ret = 0;
         int err = 0;
-        ext4_io_end_t *io = EXT4_I(inode)->cur_aio_dio;
+        ext4_io_end_t *io = ext4_inode_aio(inode);
 
         ext_debug("ext4_ext_handle_uninitialized_extents: inode %lu, logical "
                   "block %llu, max_blocks %u, flags %x, allocated %u\n",
@@ -3876,7 +3876,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
         unsigned int allocated = 0, offset = 0;
         unsigned int allocated_clusters = 0;
         struct ext4_allocation_request ar;
-        ext4_io_end_t *io = EXT4_I(inode)->cur_aio_dio;
+        ext4_io_end_t *io = ext4_inode_aio(inode);
         ext4_lblk_t cluster_offset;
 
         ext_debug("blocks %u/%u requested for inode %lu\n",