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CVS commit: src/sys/kern

Module Name:    src
Committed By:   hannken
Date:           Tue Nov  9 16:30:26 UTC 2010

Modified Files:
        src/sys/kern: vfs_wapbl.c

Log Message:
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 -r1.37 -r1.38 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.

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