[PATCH -mm1 0/2] Fix unlocked call to idr_find()

This a series of 2 patches that should be applied on top of the other ipc
patches, in 2.6.23-rc6-mm1.

The first one is an answer to the following issue pointed out by Jarek:

> Jarek Poplawski wrote:
> 1. ipc_lock() and ipc_lock_check() are used without ipc_ids.mutex,
> but it's probably wrong: they call idr_find() with ipc_ids pointer
> which needs this mutex, just like in similar code in: ipc_findkey(),
> ipc_get_maxid() or sysvipc_find_ipc().

The second one is a trivial patch that removes an unneeded parameter for
2 routines.

They should be applied to 2.6.23-rc6-mm1, in the following order:

[PATCH 1/2]: ipc_fix_idr_find_locking.patch
[PATCH 2/2]: ipc_remove_unneeded_params.patch


Regards,
Nadia

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