cluster/gfs-kernel/src/gfs diaper.c ops_fstype.c

cluster/gfs-kernel/src/gfs diaper.c ops_fstype.c

[rpeterso]

CVSROOT:	/cvs/cluster
Module name:	cluster
Branch: 	STABLE
Changes by:	rpeterso@sourceware.org	2007-02-23 20:57:29

Modified files:
	gfs-kernel/src/gfs: diaper.c ops_fstype.c 

Log message:
	This fixes some issues reported on linux-cluster.  Essentially, the
	previous code was deadlocking in some cases, primarily, when you run
	the sync command.  That's because sync does a down_read on the
	s_umount semaphore.  The deadlock was caused by some code I removed
	with the port to the 2.6.20 kernel.  However, I removed it because
	s_umount was needed in the down state for unmounts.  That's because
	the diaper device isn't managed by the normal mount path in vfs.
	I also fixed a kernel panic I discovered in testing when trying to mount
	an invalid fs; for example, trying to mount a gfs2 file system as gfs.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/diaper.c.diff?cvsroot=cluster&only_with_tag=STABLE&r1=1.1.2.1.4.1.2.2&r2=1.1.2.1.4.1.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/ops_fstype.c.diff?cvsroot=cluster&only_with_tag=STABLE&r1=1.13.2.1.4.2.2.4&r2=1.13.2.1.4.2.2.5