jffs2 kernel dump with 2.6.22-rc7

[Zac Medico]

giulio fedel wrote:
> In jffs2_do_unlink() in fs/jffs2/write.c
> the jffs2_complete_reservation(c) is called even if 
> jffs2_reserve_space() is not called. This cause an unmatched 
> up(&c->alloc_sem) so the locking mechanism does not work.
> People using MTD_CAP_NORFLASH flash _and_ CONFIG_JFFS2_SUMMARY do not 
> see the problem (see  os-linux.h for the definition of 
> jffs2_can_mark_obsolete(c)).
> 
> I think this is your problem (it was the mine).

I can confirm that your patch solves the problem for me. I've been
unable to use jffs2 since 2.6.22 because of this problem. Thanks for
the fix!

Zac