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TAKE 988143 - Allocate the struct xfs_ail

To: sgi.bugs.xfs@xxxxxxxxxxxx, xfs@xxxxxxxxxxx
Subject: TAKE 988143 - Allocate the struct xfs_ail
From: lachlan@xxxxxxx (Lachlan McIlroy)
Date: Thu, 16 Oct 2008 15:32:48 +1100 (EST)
Allocate the struct xfs_ail

Rather than embedding the struct xfs_ail in the struct xfs_mount,
allocate it during AIL initialisation. Add a back pointer to
the struct xfs_ail so that we can pass around the xfs_ail
and still be able to access the xfs_mount if need be. This
is th first step involved in isolating the AIL implementation
from the surrounding filesystem code.

Signed-off-by: Dave Chinner <david@xxxxxxxxxxxxx>

Date:  Thu Oct 16 15:32:15 EST 2008
Workarea:  redback.melbourne.sgi.com:/home/lachlan/isms/2.6.x-ail
Inspected by:  hch
Author:  lachlan

The following file(s) were checked into:

Modid:  xfs-linux-melb:xfs-kern:32346a
fs/xfs/xfs_trans_priv.h - 1.31 - changed
fs/xfs/xfs_trans_ail.c - 1.88 - changed
fs/xfs/xfs_mount.h - 1.282 - changed
fs/xfs/linux-2.6/xfs_super.c - 1.463 - changed
        - Allocate the struct xfs_ail

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