CVS commit: src/sys/ufs/ffs

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

Module Name:    src
Committed By:   hannken
Date:           Sun Dec  7 19:51:07 UTC 2008

Modified Files:
        src/sys/ufs/ffs: ffs_snapshot.c

Log Message:
ffs_copyonwrite():   Only use si_snapblklist if it is already allocated.

ffs_snapshot_read(): Use IO_ALTSEMANTICS to allow reading a snapshot vnode
                     beyond file system size.  Needed to read the snapblklist
                     on mount.

Persistent snapshots work again.

Should fix PR kern/37425: fss_snapshot_mount panic during fsck.


To generate a diff of this commit:
cvs rdiff -r1.86 -r1.87 src/sys/ufs/ffs/ffs_snapshot.c

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