Date: Tue, 18 Nov 2008 18:21:36 +0000 (UTC) From: Doug Ambrisko <ambrisko@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r185054 - in stable/7/sys: . ufs/ffs Message-ID: <200811181821.mAIILa1W084886@svn.freebsd.org>
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Author: ambrisko Date: Tue Nov 18 18:21:36 2008 New Revision: 185054 URL: http://svn.freebsd.org/changeset/base/185054 Log: MFC 184934: 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. PR: 128832 Approved by: re (kensmith) Modified: stable/7/sys/ (props changed) stable/7/sys/ufs/ffs/ffs_snapshot.c Modified: stable/7/sys/ufs/ffs/ffs_snapshot.c ============================================================================== --- stable/7/sys/ufs/ffs/ffs_snapshot.c Tue Nov 18 15:48:23 2008 (r185053) +++ stable/7/sys/ufs/ffs/ffs_snapshot.c Tue Nov 18 18:21:36 2008 (r185054) @@ -345,6 +345,8 @@ restart: if (error) goto out; bawrite(nbp); + if (cg % 10 == 0) + ffs_syncvnode(vp, MNT_WAIT); } /* * Copy all the cylinder group maps. Although the @@ -366,6 +368,8 @@ restart: goto out; error = cgaccount(cg, vp, nbp, 1); bawrite(nbp); + if (cg % 10 == 0) + ffs_syncvnode(vp, MNT_WAIT); if (error) goto out; }
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