tree 18dceaf00a1ae275fb770c83cec0eae81662352a
parent 6d544bb4d9019c3a0d7ee4af1e4bbbd61a6e16dc
author Zach Brown <zach.brown@oracle.com> 1165746056 -0800
committer Linus Torvalds <torvalds@woody.osdl.org> 1165773441 -0800

[PATCH] dio: call blk_run_address_space() once per op

We only need to call blk_run_address_space() once after all the bios for the
direct IO op have been submitted.  This removes the chance of calling
blk_run_address_space() after spurious wake ups as the sync path waits for
bios to drain.  It's also one less difference betwen the sync and async paths.

In the process we remove a redundant dio_bio_submit() that its caller had
already performed.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Suparna Bhattacharya <suparna@in.ibm.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>