CVS commit: src/sys/kern

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Sun Dec 12 10:30:10 UTC 2010

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

Log Message:
brelsel: Clear B_COWDONE flag on clean (! BO_DELWRI) buffer.  B_COWDONE is set
if the buffer was read with intention to modify but the caller changed its mind.

This error could lead to snapshot corruption when a buffer with B_COWDONE set
resides on the freelist and we create a new snapshot.


To generate a diff of this commit:
cvs rdiff -u -r1.224 -r1.225 src/sys/kern/vfs_bio.c

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