Date: Mon, 27 Sep 2010 02:30:56 +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: <201009270231.o8R2VMKc029606@repoman.freebsd.org>
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rmacklem 2010-09-27 02:30:56 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/fs/nfsserver nfs_nfsdstate.c
Log:
SVN rev 213191 on 2010-09-27 02:30:56Z by rmacklem
MFC: r212443
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.
Revision Changes Path
1.10.2.12 +6 -1 src/sys/fs/nfsserver/nfs_nfsdstate.c
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