Date: Sat, 6 May 2006 20:51:32 +0000 (UTC) From: Tor Egge <tegge@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ufs/ffs ffs_softdep.c Message-ID: <200605062051.k46KpWik052043@repoman.freebsd.org>
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tegge 2006-05-06 20:51:32 UTC
FreeBSD src repository
Modified files:
sys/ufs/ffs ffs_softdep.c
Log:
ffs_syncvnode() might skip some of the blocks due to them being locked,
assuming them to be inflight write buffers. This is not always the case.
bufdaemon might hold the buffer lock and give up writing the buffer due to it
having dependencies, the file system being suspended or the vnode lock being
held by another thread. When bufdaemon decides to write the buffer there is
still a window before bufobj_wref() has been called, allowing other threads to
believe that the vnode has no dirty buffers or inflight writes.
Try harder to flush first block of new subdirectory to get rid of MKDIR_BODY
dependency.
Revision Changes Path
1.196 +46 -0 src/sys/ufs/ffs/ffs_softdep.c
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