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Eliminate a comment describing code that was deleted over eight years ago.

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Move another comment to its proper place.  Fix a typo in a third comment.
This commit is contained in:
Alan Cox 2009-06-01 06:12:08 +00:00
parent 9cdd13b268
commit 6864a18c41
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=193201
1 changed files with 6 additions and 14 deletions
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20
sys/kern/vfs_bio.c
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@ -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 *bp)
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;