Date: Mon, 21 Oct 2002 18:23:00 -0700 (PDT) From: Kirk McKusick <mckusick@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ufs/ffs ffs_snapshot.c Message-ID: <200210220123.g9M1N0U1050829@repoman.freebsd.org>
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mckusick 2002/10/21 18:23:00 PDT
Modified files:
sys/ufs/ffs ffs_snapshot.c
Log:
This update further fine tunes the locking of snapshot vnodes in
the ffs_copyonwrite routine to avoid a deadlock between the syncer
daemon trying to sync out a snapshot vnode and the bufdaemon
trying to write out a buffer containing the snapshot inode.
With any luck this will be the last snapshot race condition.
Sponsored by: DARPA & NAI Labs.
Revision Changes Path
1.47 +22 -13 src/sys/ufs/ffs/ffs_snapshot.c
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