CVS commit: [netbsd-5-1] src/sys/kern

["Jeff Rizzo" <riz%netbsd.org@localhost>]

Module Name:    src
Committed By:   riz
Date:           Mon Nov 22 02:53:19 UTC 2010

Modified Files:
        src/sys/kern [netbsd-5-1]: vfs_wapbl.c

Log Message:
Pull up following revision(s) (requested by hannken in ticket #1477):
        sys/kern/vfs_wapbl.c: revision 1.38
Wapbl_register_deallocation(): the taken reader lock is not sufficient to
protect wl_dealloc* members.  Take the mutex here and change the lock
requirements of these fields to "writer lock or mutex".
This error lead to file system corruption and "freeing free block" panics.


To generate a diff of this commit:
cvs rdiff -u -r1.3.8.2 -r1.3.8.2.2.1 src/sys/kern/vfs_wapbl.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.