Re: 2.5.70-bk16: nfs crash

From: Trond Myklebust (
Date: Thu Jun 12 2003 - 10:35:14 EST

>>>>> " " == Dipankar Sarma <> writes:

> I am not supprised at all by this, I can see two csets in
> Linus' tree that will definitely break dcache -

> 1.|ChangeSet@-2d

> __d_drop() *must not* initialize d_hash fields. Lockfree lookup
> depends on that. If __d_drop() needs to be allowed on an
> unhashed dentry, the right thing to do would be to check for
> DCACHE_UNHASHED before unhashing. I will submit a patch a
> little later to do this.

Can you please remind us exactly what the benefits of all this are?
Why can't d_free() immediately free the memory instead of relying on
the RCU mechanism?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Sun Jun 15 2003 - 22:00:32 EST