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Initialize VV_ISTTY vnode flag on the devfs vnode creation instead of

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doing it on each open.

In collaboration with:	pho
MFC after:	1 month
This commit is contained in:
Konstantin Belousov 2010-08-06 09:06:55 +00:00
parent a178ce03e1
commit 3a6fc63c9f
1 changed files with 5 additions and 4 deletions
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9
sys/fs/devfs/devfs_vnops.c
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@ -337,6 +337,7 @@ devfs_allocv(struct devfs_dirent *de, struct mount *mp, struct vnode **vpp)
struct vnode *vp;
struct cdev *dev;
struct devfs_mount *dmp;
struct cdevsw *dsw;
dmp = VFSTODEVFS(mp);
if (de->de_flags & DE_DOOMED) {
@ -393,6 +394,10 @@ devfs_allocv(struct devfs_dirent *de, struct mount *mp, struct vnode **vpp)
KASSERT(vp->v_usecount == 1,
("%s %d (%d)\n", __func__, __LINE__, vp->v_usecount));
dev->si_usecount += vp->v_usecount;
/* Special casing of ttys for deadfs. Probably redundant. */
dsw = dev->si_devsw;
if (dsw != NULL && (dsw->d_flags & D_TTY) != 0)
vp->v_vflag |= VV_ISTTY;
dev_unlock();
VI_UNLOCK(vp);
vp->v_op = &devfs_specops;
@ -972,10 +977,6 @@ devfs_open(struct vop_open_args *ap)
if (dsw == NULL)
return (ENXIO);
/* XXX: Special casing of ttys for deadfs. Probably redundant. */
if (dsw->d_flags & D_TTY)
vp->v_vflag |= VV_ISTTY;
VOP_UNLOCK(vp, 0);
fpop = td->td_fpop;