PR/55552 CVS commit: [netbsd-9] src/sys/fs/union

["Martin Husemann" <martin%netbsd.org@localhost>]

The following reply was made to PR kern/55552; it has been noted by GNATS.

From: "Martin Husemann" <martin%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/55552 CVS commit: [netbsd-9] src/sys/fs/union
Date: Thu, 27 Aug 2020 09:08:40 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Thu Aug 27 09:08:39 UTC 2020
 
 Modified Files:
 	src/sys/fs/union [netbsd-9]: union.h union_subr.c union_vnops.c
 
 Log Message:
 Pull up following revision(s) (requested by hannken in ticket #1062):
 
 	sys/fs/union/union.h: revision 1.30
 	sys/fs/union/union_subr.c: revision 1.79
 	sys/fs/union/union_vnops.c: revision 1.74
 
 Operation union_readdirhook() stores the lower directory as un_uppervp.
 This breaks the assumption that un_uppervp->v_mount is the upper mount.
 
 Fix by storing the directory as un_lowervp and adapt union_readdir().
 
 Should fix PR kern/55552: panic with union mount
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.29 -r1.29.10.1 src/sys/fs/union/union.h
 cvs rdiff -u -r1.77 -r1.77.8.1 src/sys/fs/union/union_subr.c
 cvs rdiff -u -r1.70 -r1.70.14.1 src/sys/fs/union/union_vnops.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.