diff options
| author | mckusick <mckusick@FreeBSD.org> | 1999-06-26 02:47:16 +0000 |
|---|---|---|
| committer | mckusick <mckusick@FreeBSD.org> | 1999-06-26 02:47:16 +0000 |
| commit | 5b58f2f951911f1075788268f99efccf1dba60eb (patch) | |
| tree | 3f01ed42f71231eaa6a8cfa08b267634f1923fb1 /sys/isa/fd.c | |
| parent | 3213b13650cb2206bbd62b5b1764d148750f63a0 (diff) | |
| download | FreeBSD-src-5b58f2f951911f1075788268f99efccf1dba60eb.zip FreeBSD-src-5b58f2f951911f1075788268f99efccf1dba60eb.tar.gz | |
Convert buffer locking from using the B_BUSY and B_WANTED flags to using
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
Diffstat (limited to 'sys/isa/fd.c')
| -rw-r--r-- | sys/isa/fd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/isa/fd.c b/sys/isa/fd.c index 77ebb36..36e5524 100644 --- a/sys/isa/fd.c +++ b/sys/isa/fd.c @@ -47,7 +47,7 @@ * SUCH DAMAGE. * * from: @(#)fd.c 7.4 (Berkeley) 5/25/91 - * $Id: fd.c,v 1.145 1999/05/30 16:52:12 phk Exp $ + * $Id: fd.c,v 1.146 1999/05/31 18:39:16 dfr Exp $ * */ @@ -2196,7 +2196,9 @@ fdformat(dev, finfo, p) */ PHOLD(p); bzero((void *)bp, sizeof(struct buf)); - bp->b_flags = B_BUSY | B_PHYS | B_FORMAT; + BUF_LOCKINIT(bp); + BUF_LOCK(bp, LK_EXCLUSIVE); + bp->b_flags = B_PHYS | B_FORMAT; /* * calculate a fake blkno, so fdstrategy() would initiate a @@ -2232,6 +2234,8 @@ fdformat(dev, finfo, p) * allow the process to be swapped */ PRELE(p); + BUF_UNLOCK(bp); + BUF_LOCKFREE(bp); free(bp, M_TEMP); return rv; } |
