diff options
| author | jeff <jeff@FreeBSD.org> | 2002-08-04 10:29:36 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2002-08-04 10:29:36 +0000 |
| commit | 02517b6731ab2da44ce9b49260429744cf0114d5 (patch) | |
| tree | e889f56910bf98cbee3be239655a9e4bbb928b2e /sys/fs/deadfs | |
| parent | a03ca02ee99a255a2c14a75ff8eb488960b13ea7 (diff) | |
| download | FreeBSD-src-02517b6731ab2da44ce9b49260429744cf0114d5.zip FreeBSD-src-02517b6731ab2da44ce9b49260429744cf0114d5.tar.gz | |
- Replace v_flag with v_iflag and v_vflag
- v_vflag is protected by the vnode lock and is used when synchronization
with VOP calls is needed.
- v_iflag is protected by interlock and is used for dealing with vnode
management issues. These flags include X/O LOCK, FREE, DOOMED, etc.
- All accesses to v_iflag and v_vflag have either been locked or marked with
mp_fixme's.
- Many ASSERT_VOP_LOCKED calls have been added where the locking was not
clear.
- Many functions in vfs_subr.c were restructured to provide for stronger
locking.
Idea stolen from: BSD/OS
Diffstat (limited to 'sys/fs/deadfs')
| -rw-r--r-- | sys/fs/deadfs/dead_vnops.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/fs/deadfs/dead_vnops.c b/sys/fs/deadfs/dead_vnops.c index 6ff5038..6734ebe 100644 --- a/sys/fs/deadfs/dead_vnops.c +++ b/sys/fs/deadfs/dead_vnops.c @@ -145,7 +145,7 @@ dead_read(ap) /* * Return EOF for tty devices, EIO for others */ - if ((ap->a_vp->v_flag & VISTTY) == 0) + if ((ap->a_vp->v_vflag & VV_ISTTY) == 0) return (EIO); return (0); } @@ -262,11 +262,13 @@ chkvnlock(vp) { int locked = 0; - while (vp->v_flag & VXLOCK) { - vp->v_flag |= VXWANT; - (void) tsleep((caddr_t)vp, PINOD, "ckvnlk", 0); + VI_LOCK(vp); + while (vp->v_iflag & VI_XLOCK) { + vp->v_iflag |= VI_XWANT; + (void) msleep((caddr_t)vp, VI_MTX(vp), PINOD, "ckvnlk", 0); locked = 1; } + VI_UNLOCK(vp); return (locked); } |
