Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

VOP_PUTPAGES must release the uobj's lock for us, so ensure it's locked

Browse Source 
beforehand and unlocked afterwards using LOCK_ASSERT().
This commit is contained in:
sommerfeld 2001-09-22 22:33:16 +00:00
parent da3f862846
commit cc8633edd3
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/uvm/uvm_vnode.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: uvm_vnode.c,v 1.52 2001/09/15 20:36:47 chs Exp $ */
/* $NetBSD: uvm_vnode.c,v 1.53 2001/09/22 22:33:16 sommerfeld Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@ -247,7 +247,7 @@ uvn_detach(uobj)
/*
* uvn_put: flush page data to backing store.
*
* => object must be locked! we will _unlock_ it before starting I/O.
* => object must be locked on entry! VOP_PUTPAGES must unlock it.
* => flags: PGO_SYNCIO -- use sync. I/O
* => note: caller must set PG_CLEAN and pmap_clear_modify (if needed)
*/
@ -262,7 +262,9 @@ uvn_put(uobj, off, len, flags)
struct vnode *vp = (struct vnode *)uobj;
int error;
LOCK_ASSERT(simple_lock_held(&vp->v_interlock));
error = VOP_PUTPAGES(vp, off, len, flags);
LOCK_ASSERT(!simple_lock_held(&vp->v_interlock));
return error;
}