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Re: CVS commit: src/sys
On Sat, May 16, 2009 at 08:29:54AM +0000, YAMAMOTO Takashi wrote:
> Modified Files:
> src/sys/kern: vfs_subr.c
> src/sys/sys: vnode.h
>
> Log Message:
> put a flag bit into v_usecount to prevent vtryget during getcleanvnode.
> this fixes the following deadlock.
Thanks! How about this to avoid potential sign compare issues? I forgot
to e-mail you about it earlier.
@@ -252,8 +252,8 @@ typedef struct vnode vnode_t;
/*
* v_usecount; see the comment in vfs_subr.c
*/
-#define VC_XLOCK 0x80000000
-#define VC_MASK 0x7fffffff
+#define VC_XLOCK 0x40000000
+#define VC_MASK (0xffffffff & ~VC_XLOCK)
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