Filesystem AIO rdwr - use down_wq for aio write

On Thu, Apr 24, 2003 at 10:22:22AM +0530, Suparna Bhattacharya wrote:
> Here is a revised version of the filesystem AIO patches
> for 2.5.68.
> 
> 05aiowrdown_wq.patch 	: Uses async down for aio write

Will currently compile only for x86, since down_wq
support isn't implemented on other archs.

Regards
Suparna

05aiowrdown_wq.patch
....................
 filemap.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


diff -ur -X /home/kiran/dontdiff linux-2.5.68/mm/filemap.c linux-aio-2568/mm/filemap.c
--- linux-2.5.68/mm/filemap.c	Mon Apr 21 23:30:40 2003
+++ linux-aio-2568/mm/filemap.c	Tue Apr 22 00:28:55 2003
@@ -1786,7 +1851,8 @@
 
 	BUG_ON(iocb->ki_pos != pos);
 
-	down(&inode->i_sem);
+	if ((err = down_wq(&inode->i_sem, current->io_wait)))
+		return err;
 	err = generic_file_aio_write_nolock(iocb, &local_iov, 1, 
 						&iocb->ki_pos);
 	up(&inode->i_sem);

-- 
Suparna Bhattacharya (suparna@in.ibm.com)
Linux Technology Center
IBM Software Labs, India

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