d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- Add a ASSERT_VOP_LOCKED in vnode_pager_alloc.

Browse Source 
- Lock access to v_iflags.
This commit is contained in:
jeff 2002-09-25 01:23:43 +00:00
parent f4ce091d17
commit ee079921fc
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/vm/vnode_pager.c
View File

@ -120,6 +120,8 @@ vnode_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
vp = (struct vnode *) handle;
ASSERT_VOP_LOCKED(vp, "vnode_pager_alloc");
mtx_lock(&Giant);
/*
* Prevent race condition when allocating the object. This
@ -212,9 +214,12 @@ vnode_pager_haspage(object, pindex, before, after)
if (vp == NULL)
return FALSE;
mp_fixme("Unlocked iflags access");
if (vp->v_iflag & VI_DOOMED)
VI_LOCK(vp);
if (vp->v_iflag & VI_DOOMED) {
VI_UNLOCK(vp);
return FALSE;
}
VI_UNLOCK(vp);
/*
* If filesystem no longer mounted or offset beyond end of file we do
* not have the page.