Date: Wed, 28 Aug 2013 17:46:32 +0000 (UTC) From: Kirk McKusick <mckusick@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r254996 - head/sys/ufs/ffs Message-ID: <201308281746.r7SHkW0G075617@svn.freebsd.org>
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Author: mckusick Date: Wed Aug 28 17:46:32 2013 New Revision: 254996 URL: http://svnweb.freebsd.org/changeset/base/254996 Log: In looking at block layouts as part of fixing filesystem block allocations under low free-space conditions (-r254995), determine that old block-preference search order used before -r249782 worked a bit better. This change reverts to that block-preference search order. MFC after: 2 weeks Modified: head/sys/ufs/ffs/ffs_alloc.c Modified: head/sys/ufs/ffs/ffs_alloc.c ============================================================================== --- head/sys/ufs/ffs/ffs_alloc.c Wed Aug 28 17:38:05 2013 (r254995) +++ head/sys/ufs/ffs/ffs_alloc.c Wed Aug 28 17:46:32 2013 (r254996) @@ -1186,7 +1186,7 @@ ffs_dirpref(pip) if (fs->fs_contigdirs[cg] < maxcontigdirs) return ((ino_t)(fs->fs_ipg * cg)); } - for (cg = prefcg - 1; cg >= 0; cg--) + for (cg = 0; cg < prefcg; cg++) if (fs->fs_cs(fs, cg).cs_ndir < maxndir && fs->fs_cs(fs, cg).cs_nifree >= minifree && fs->fs_cs(fs, cg).cs_nbfree >= minbfree) { @@ -1199,7 +1199,7 @@ ffs_dirpref(pip) for (cg = prefcg; cg < fs->fs_ncg; cg++) if (fs->fs_cs(fs, cg).cs_nifree >= avgifree) return ((ino_t)(fs->fs_ipg * cg)); - for (cg = prefcg - 1; cg >= 0; cg--) + for (cg = 0; cg < prefcg; cg++) if (fs->fs_cs(fs, cg).cs_nifree >= avgifree) break; return ((ino_t)(fs->fs_ipg * cg));
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