TAKE 938306 - replace vn_get usage by ihold

[Christoph Hellwig <hch@xxxxxxx>]

vn_get is possibly racy and overly complicated for usage under
Linux.  We can simply use ihold whith the mount lock held to
check whether an inode is beeing freed or grab a reference if it
is not.


Date:  Wed Jun 22 06:56:22 PDT 2005
Workarea:  maine.americas.sgi.com:/home/daisy40/hch/ptools/xfs-2.4.x
Inspected by:  nathans

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/linux/2.4.x-xfs


Modid:  xfs-linux:xfs-kern:194627a
fs/xfs/xfs_vfsops.c - 1.469 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_vfsops.c.diff?r1=text&tr1=1.469&r2=text&tr2=1.468&f=h
        - replace vn_get usage by ihold

fs/xfs/quota/xfs_qm_syscalls.c - 1.18 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/quota/xfs_qm_syscalls.c.diff?r1=text&tr1=1.18&r2=text&tr2=1.17&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.6/xfs_vnode.c - 1.128 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_vnode.c.diff?r1=text&tr1=1.128&r2=text&tr2=1.127&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.6/xfs_vnode.h - 1.105 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_vnode.h.diff?r1=text&tr1=1.105&r2=text&tr2=1.104&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.4/xfs_vnode.c - 1.129 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_vnode.c.diff?r1=text&tr1=1.129&r2=text&tr2=1.128&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.4/xfs_vnode.h - 1.98 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_vnode.h.diff?r1=text&tr1=1.98&r2=text&tr2=1.97&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.6/xfs_ksyms.c - 1.21 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_ksyms.c.diff?r1=text&tr1=1.21&r2=text&tr2=1.20&f=h
        - replace vn_get usage by ihold

fs/xfs/linux-2.4/xfs_ksyms.c - 1.18 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_ksyms.c.diff?r1=text&tr1=1.18&r2=text&tr2=1.17&f=h
        - replace vn_get usage by ihold