CVS commit: [netbsd-9] src/sys/ufs/ufs

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

Module Name:    src
Committed By:   martin
Date:           Sun Mar  8 11:07:58 UTC 2020

Modified Files:
        src/sys/ufs/ufs [netbsd-9]: ufs_dirhash.c

Log Message:
Pull up following revision(s) (requested by chs in ticket #767):

        sys/ufs/ufs/ufs_dirhash.c: revision 1.38

in ufsdirhash_free(), only examine dh->dh_onlist after taking the
dirhashlist lock.  if we skip the lock then we might see that
dh_onlist is zero while ufsdirhash_recycle() is still working on
the dirhash.  the symptom I saw was that ufsdirhash_free() would
try to destroy the dh_lock mutex while it was still held.


To generate a diff of this commit:
cvs rdiff -u -r1.37 -r1.37.22.1 src/sys/ufs/ufs/ufs_dirhash.c

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