Date: Sun, 11 Mar 2012 20:23:46 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r232835 - head/sys/ufs/ffs Message-ID: <201203112023.q2BKNk1K025686@svn.freebsd.org>
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Author: kib Date: Sun Mar 11 20:23:46 2012 New Revision: 232835 URL: http://svn.freebsd.org/changeset/base/232835 Log: Do not fall back to slow synchronous i/o when low on memory or buffers. The bawrite() schedules the write to happen immediately, and its use frees the current thread to do more cleanups. Submitted by: bde Reviewed by: mckusick Tested by: pho MFC after: 2 weeks Modified: head/sys/ufs/ffs/ffs_inode.c Modified: head/sys/ufs/ffs/ffs_inode.c ============================================================================== --- head/sys/ufs/ffs/ffs_inode.c Sun Mar 11 20:18:14 2012 (r232834) +++ head/sys/ufs/ffs/ffs_inode.c Sun Mar 11 20:23:46 2012 (r232835) @@ -133,9 +133,11 @@ ffs_update(vp, waitfor) else *((struct ufs2_dinode *)bp->b_data + ino_to_fsbo(fs, ip->i_number)) = *ip->i_din2; - if ((waitfor && !DOINGASYNC(vp)) || - (vm_page_count_severe() || buf_dirty_count_severe())) { + if ((waitfor && !DOINGASYNC(vp))) error = bwrite(bp); + else if (vm_page_count_severe() || buf_dirty_count_severe()) { + bawrite(bp); + error = 0; } else { if (bp->b_bufsize == fs->fs_bsize) bp->b_flags |= B_CLUSTEROK;
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