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Give the bufobj a private __bo_vnode for now to keep the syncer floating [1]

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At some point later the syncer will unlearn about vnodes and the filesystems
method called by the syncer will know enough about what's in bo_private to
do the right thing.

[1] Ok, I know, but I couldn't resist the pun.
This commit is contained in:
phk 2004-10-29 09:33:32 +00:00
parent 269b7a298a
commit 12ca46b3fc
2 changed files with 7 additions and 1 deletions
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3
sys/kern/vfs_subr.c
View File

@ -832,6 +832,7 @@ getnewvnode(tag, mp, vops, vpp)
vp->v_dd = vp;
bo = &vp->v_bufobj;
bo->bo_private = vp;
bo->__bo_vnode = vp;
bo->bo_mtx = &vp->v_interlock;
vp->v_vnlock = &vp->v_lock;
lockinit(vp->v_vnlock, PVFS, tag, VLKTIMEOUT, LK_NOPAUSE);
@ -1552,7 +1553,7 @@ sched_sync(void)
if (net_worklist_len > 0 && syncer_state == SYNCER_FINAL_DELAY)
syncer_state = SYNCER_SHUTTING_DOWN;
while ((bo = LIST_FIRST(slp)) != NULL) {
vp = bo->bo_private; /* XXX */
vp = bo->__bo_vnode; /* XXX */
if (VOP_ISLOCKED(vp, NULL) != 0 ||
vn_start_write(vp, &mp, V_NOWAIT) != 0) {
LIST_REMOVE(bo, bo_synclist);

5
sys/sys/bufobj.h
View File

@ -87,6 +87,11 @@ struct bufobj {
struct vm_object *bo_object; /* v Place to store VM object */
LIST_ENTRY(bufobj) bo_synclist; /* S dirty vnode list */
void *bo_private; /* private pointer */
struct vnode *__bo_vnode; /*
* XXX: This vnode pointer is here
* XXX: only to keep the syncer working
* XXX: for now.
*/
};
/*