Date: Wed, 18 Nov 2009 22:31:10 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r199495 - user/kmacy/releng_8_fcs_buf/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <200911182231.nAIMVAEf086231@svn.freebsd.org>
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Author: kmacy Date: Wed Nov 18 22:31:10 2009 New Revision: 199495 URL: http://svn.freebsd.org/changeset/base/199495 Log: only cache new buffer if the buffer is valid and the I/O succeded Modified: user/kmacy/releng_8_fcs_buf/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Modified: user/kmacy/releng_8_fcs_buf/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- user/kmacy/releng_8_fcs_buf/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Wed Nov 18 22:14:36 2009 (r199494) +++ user/kmacy/releng_8_fcs_buf/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Wed Nov 18 22:31:10 2009 (r199495) @@ -188,6 +188,7 @@ SYSCTL_INT(_vfs_zfs, OID_AUTO, mdcomp_di &zfs_mdcomp_disable, 0, "Disable metadata compression"); static int zfs_page_cache_disable = 0; +TUNABLE_INT("vfs.zfs.page_cache_disable", &zfs_page_cache_disable); SYSCTL_INT(_vfs_zfs, OID_AUTO, page_cache_disable, CTLFLAG_RDTUN, &zfs_page_cache_disable, 0, "Disable backing ARC with page cache "); @@ -1343,9 +1344,8 @@ arc_bgetvp(arc_buf_t *buf) BO_UNLOCK(bo); } } - } else { - newbp->b_flags |= B_CACHE; - newbp->b_flags &= ~B_INVAL; + } else if (!(hdr->b_flags & ARC_IO_ERROR) && + (newbp->b_flags & (B_INVAL|B_CACHE)) == B_CACHE) { bgetvp(vp, newbp); BO_UNLOCK(bo); }
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