Date: Mon, 1 Jun 2009 06:12:08 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r193201 - head/sys/kern Message-ID: <200906010612.n516C89j066174@svn.freebsd.org>
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Author: alc Date: Mon Jun 1 06:12:08 2009 New Revision: 193201 URL: http://svn.freebsd.org/changeset/base/193201 Log: Eliminate a comment describing code that was deleted over eight years ago. Move another comment to its proper place. Fix a typo in a third comment. Modified: head/sys/kern/vfs_bio.c Modified: head/sys/kern/vfs_bio.c ============================================================================== --- head/sys/kern/vfs_bio.c Mon Jun 1 05:48:30 2009 (r193200) +++ head/sys/kern/vfs_bio.c Mon Jun 1 06:12:08 2009 (r193201) @@ -638,13 +638,6 @@ bufinit(void) hifreebuffers = 2 * lofreebuffers; numfreebuffers = nbuf; -/* - * Maximum number of async ops initiated per buf_daemon loop. This is - * somewhat of a hack at the moment, we really need to limit ourselves - * based on the number of bytes of I/O in-transit that were initiated - * from buf_daemon. - */ - bogus_page = vm_page_alloc(NULL, 0, VM_ALLOC_NOOBJ | VM_ALLOC_NORMAL | VM_ALLOC_WIRED); } @@ -1202,7 +1195,7 @@ brelse(struct buf *bp) /* * Failed write, redirty. Must clear BIO_ERROR to prevent * pages from being scrapped. If the error is anything - * other than an I/O error (EIO), assume that retryingi + * other than an I/O error (EIO), assume that retrying * is futile. */ bp->b_ioflags &= ~BIO_ERROR; @@ -2403,15 +2396,9 @@ vfs_setdirty(struct buf *bp) /* * Degenerate case - empty buffer */ - if (bp->b_bufsize == 0) return; - /* - * We qualify the scan for modified pages on whether the - * object has been flushed yet. - */ - if ((bp->b_flags & B_VMIO) == 0) return; @@ -2428,6 +2415,11 @@ vfs_setdirty_locked_object(struct buf *b object = bp->b_bufobj->bo_object; VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); + + /* + * We qualify the scan for modified pages on whether the + * object has been flushed yet. + */ if (object->flags & (OBJ_MIGHTBEDIRTY|OBJ_CLEANING)) { vm_offset_t boffset; vm_offset_t eoffset;
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