CVS commit: src/sys/ufs/ufs

["Chuck Silvers" <chs%netbsd.org@localhost>]

Module Name:    src
Committed By:   chs
Date:           Sun Mar  8 00:23:59 UTC 2020

Modified Files:
        src/sys/ufs/ufs: ufs_dirhash.c

Log Message:
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 -r1.38 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.