fs/block_dev.c: remove #if 0'ed code

Commit b2e895dbd80c420bfc0937c3729b4afe073b3848 #if 0'ed this code stating:

<--  snip  -->

    [PATCH] revert blockdev direct io back to 2.6.19 version

    Andrew Vasquez is reporting as-iosched oopses and a 65% throughput
    slowdown due to the recent special-casing of direct-io against
    blockdevs.  We don't know why either of these things are occurring.

    The patch minimally reverts us back to the 2.6.19 code for a 2.6.20
    release.

<--  snip  -->

It has since been dead code, and unless someone wants to revive it now
it's time to remove it.

This patch also makes bio_release_pages() static again and removes the
ki_bio_count member from struct kiocb, reverting changes that had been
done for this dead code.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/aio.h b/include/linux/aio.h
index a9931e2e5624..0d0b7f629bd3 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -105,7 +105,6 @@ struct kiocb {
         wait_queue_t            ki_wait;
         loff_t                  ki_pos;
 
-        atomic_t                ki_bio_count;   /* num bio used for this iocb */
         void                    *private;
         /* State that we remember to be able to restart/retry  */
         unsigned short          ki_opcode;