Date: Fri, 17 Jan 2014 16:22:10 +0000 (UTC) From: Kirk McKusick <mckusick@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r260828 - stable/10/sys/ufs/ffs Message-ID: <201401171622.s0HGMAKY064444@svn.freebsd.org>
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Author: mckusick Date: Fri Jan 17 16:22:10 2014 New Revision: 260828 URL: http://svnweb.freebsd.org/changeset/base/260828 Log: MFC of 260088: Fine tune filesystem block allocations under low free-space conditions (-r254995) based on further operational experience. Submitted by: Dmitry Sivachenko Fix Tested by: Dmitry Sivachenko Modified: stable/10/sys/ufs/ffs/ffs_alloc.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/ufs/ffs/ffs_alloc.c ============================================================================== --- stable/10/sys/ufs/ffs/ffs_alloc.c Fri Jan 17 16:17:07 2014 (r260827) +++ stable/10/sys/ufs/ffs/ffs_alloc.c Fri Jan 17 16:22:10 2014 (r260828) @@ -517,12 +517,12 @@ ffs_reallocblks_ufs1(ap) fs = ip->i_fs; ump = ip->i_ump; /* - * If we are not tracking block clusters or if we have less than 2% + * If we are not tracking block clusters or if we have less than 4% * free blocks left, then do not attempt to cluster. Running with * less than 5% free block reserve is not recommended and those that * choose to do so do not expect to have good file layout. */ - if (fs->fs_contigsumsize <= 0 || freespace(fs, 2) < 0) + if (fs->fs_contigsumsize <= 0 || freespace(fs, 4) < 0) return (ENOSPC); buflist = ap->a_buflist; len = buflist->bs_nchildren; @@ -744,12 +744,12 @@ ffs_reallocblks_ufs2(ap) fs = ip->i_fs; ump = ip->i_ump; /* - * If we are not tracking block clusters or if we have less than 2% + * If we are not tracking block clusters or if we have less than 4% * free blocks left, then do not attempt to cluster. Running with * less than 5% free block reserve is not recommended and those that * choose to do so do not expect to have good file layout. */ - if (fs->fs_contigsumsize <= 0 || freespace(fs, 2) < 0) + if (fs->fs_contigsumsize <= 0 || freespace(fs, 4) < 0) return (ENOSPC); buflist = ap->a_buflist; len = buflist->bs_nchildren;
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