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TAKE - implement true AIO for xfs in 2.6

To: linux-xfs@xxxxxxxxxxx
Subject: TAKE - implement true AIO for xfs in 2.6
From: Steve Lord <lord@xxxxxxx>
Date: Tue, 29 Jul 2003 11:35:27 -0500
Sender: linux-xfs-bounce@xxxxxxxxxxx
Rework XFS read/write path so that there is one common read and one common
write path for all the different I/O variants. This means we can now support
true async I/O.

Date:  Tue Jul 29 09:33:46 PDT 2003
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.5

The following file(s) were checked into:

Modid:  2.5.x-xfs:slinx:154475a
linux/mm/filemap.c - 1.160
        - Export __generic_file_aio_read so xfs can use it

linux/include/linux/fs.h - 1.220
        - Prototype for __generic_file_aio_read

linux/fs/xfs/linux/xfs_lrw.h - 1.38
        - change prototypes for xfs_read and xfs_write

linux/fs/xfs/linux/xfs_lrw.c - 1.190
        - Pass an iocb down through xfs_read and xfs_write to allow them to be 
          for true async I/O. 

linux/fs/xfs/linux/xfs_file.c - 1.92
        - lip over to using the aio interface for read write. Change the next
          layer down to take an iocb instead of a file pointer. 

linux/fs/xfs/linux/xfs_vnode.h - 1.83
        - pass an iocb down into the read and write path

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