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/msdosfs | |
| 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/msdosfs')
| -rw-r--r-- | sys/msdosfs/msdosfs_vnops.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/msdosfs/msdosfs_vnops.c b/sys/msdosfs/msdosfs_vnops.c index 036ad2f..98e301e 100644 --- a/sys/msdosfs/msdosfs_vnops.c +++ b/sys/msdosfs/msdosfs_vnops.c @@ -1,4 +1,4 @@ -/* $Id: msdosfs_vnops.c,v 1.84 1999/05/06 18:12:51 peter Exp $ */ +/* $Id: msdosfs_vnops.c,v 1.85 1999/05/11 19:54:43 phk Exp $ */ /* $NetBSD: msdosfs_vnops.c,v 1.68 1998/02/10 14:10:04 mrg Exp $ */ /*- @@ -842,12 +842,11 @@ loop: s = splbio(); for (bp = TAILQ_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) { nbp = TAILQ_NEXT(bp, b_vnbufs); - if ((bp->b_flags & B_BUSY)) + if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT)) continue; if ((bp->b_flags & B_DELWRI) == 0) panic("msdosfs_fsync: not dirty"); bremfree(bp); - bp->b_flags |= B_BUSY; splx(s); (void) bwrite(bp); goto loop; |
