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setting device on RT files

To: linux-xfs@xxxxxxxxxxx
Subject: setting device on RT files
From: Daniel Moore <dxm@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 07 Jun 2000 14:38:57 +1000
Sender: owner-linux-xfs@xxxxxxxxxxx
I just realised (!) that RT files are being assigned block numbers on
the RT device, but since they have the same i_dev field as the other
files, they're being written to the non-RT device.

This is my hack in xfs_rdwr that works around the problem, but I can't
work out where the correct place to set the device number is.

dxm@snort ~/isms/slinx-xfs/linux/fs/xfs> p_rdiff linux/xfs_lrw.c
142a143,149
>         
>       if (xip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
>                 /* XXX - hack */
>                 filp->f_dentry->d_inode->i_dev=xip->i_mount->m_rtdev;
>                 /* it's a bad idea to write RT data on the non-RT partition 
*/
>                 ASSERT(filp->f_dentry->d_inode->i_dev == xip->i_mount->
m_rtdev);
>       }

Can anyone clue me in on where the appropriate place to set the i_dev
field of the inode (and xfs_inode, I guess) would be?
The places I've looked have the xfs_inode but not the inode.

(while I'm asking - is there a way to get the inode from the xfs_inode?)

Ta very much
-----------------------------------------------------
 Daniel Moore                  dxm@xxxxxxx
 R&D Software Engineer         Phone: +61-3-98348209
 SGI Performance Tools Group   Fax:   +61-3-98132378
-----------------------------------------------------



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