Re: [PATCH 01/10] 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 <redacted>
Signed-off-by: Dmitry Monakhov <redacted>
---
 fs/ext4/ext4.h    |    5 +++--
 fs/ext4/extents.c |    4 ++--
 fs/ext4/inode.c   |    6 +++---
 fs/ext4/super.c   |    1 -
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 8b6902c..e59fbc5 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h

@@ -912,8 +912,6 @@ struct ext4_inode_info {
 	struct list_head i_completed_io_list;
 	spinlock_t i_completed_io_lock;
 	atomic_t i_ioend_count;	/* Number of outstanding io_end structs */
-	/* current io_end structure for async DIO write*/
-	ext4_io_end_t *cur_aio_dio;
 	atomic_t i_aiodio_unwritten; /* Nr. of inflight conversions pending */
 
 	spinlock_t i_block_reservation_lock;

@@ -929,6 +927,9 @@ struct ext4_inode_info {
 	__u32 i_csum_seed;
 };
 
+/* current io_end structure for async DIO write */
+#define EXT4_CUR_AIO_DIO(inode) (inode)->i_private