Date: Fri, 10 Sep 2010 23:49:33 +0000 (UTC) From: Rick Macklem <rmacklem@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/fs/nfsserver nfs_nfsdstate.c Message-ID: <201009102349.o8ANnkJj057538@repoman.freebsd.org>
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rmacklem 2010-09-10 23:49:33 UTC
FreeBSD src repository
Modified files:
sys/fs/nfsserver nfs_nfsdstate.c
Log:
SVN rev 212443 on 2010-09-10 23:49:33Z by rmacklem
This patch applies one of the two fixes suggested by
zack.kirsch at isilon.com for a race between nfsrv_freeopen()
and nfsrv_getlockfile() in the experimental NFS server that
he found during testing. Although nfsrv_freeopen() holds a
sleep lock on the lock file structure when called with
cansleep != 0, nfsrv_getlockfile() could still search the
list, once it acquired the NFSLOCKSTATE() mutex. I believe
that acquiring the mutex in nfsrv_freeopen() fixes the race.
MFC after: 2 weeks
Revision Changes Path
1.21 +6 -1 src/sys/fs/nfsserver/nfs_nfsdstate.c
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