On Thu, Nov 13, 2008 at 05:40:21PM +0000, Doug Ambrisko wrote: > Author: ambrisko > Date: Thu Nov 13 17:40:21 2008 > New Revision: 184934 > URL: http://svn.freebsd.org/changeset/base/184934 > > Log: > For now on every 10 cyclinder groups flush the buffer cache to free > up space. If the buffer cache fills up then the disk systems can > grind to a halt. Better tuning can be figured out later. > > Tested by: Tim, others and work > Reviewed by: Kostik Belousov > PR: 128832 > > Modified: > head/sys/ufs/ffs/ffs_snapshot.c > > Modified: head/sys/ufs/ffs/ffs_snapshot.c > ============================================================================== > --- head/sys/ufs/ffs/ffs_snapshot.c Thu Nov 13 17:13:16 2008 > (r184933) > +++ head/sys/ufs/ffs/ffs_snapshot.c Thu Nov 13 17:40:21 2008 > (r184934) > @@ -351,6 +351,8 @@ restart: > if (error) > goto out; > bawrite(nbp); > + if (cg % 10 == 0) > + ffs_syncvnode(vp, MNT_WAIT); > } > /* > * Copy all the cylinder group maps. Although the > @@ -372,6 +374,8 @@ restart: > goto out; > error = cgaccount(cg, vp, nbp, 1); > bawrite(nbp); > + if (cg % 10 == 0) > + ffs_syncvnode(vp, MNT_WAIT); > if (error) > goto out; > } Thank you !
Please, MFC it for 7.1.
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