From: Tony Luck <tony.luck@intel.com>
Date: Thu, 12 Aug 2010 16:14:56 +0000 (-0700)
Subject: [IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.
X-Git-Tag: v2.6.36-rc1~70^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b680f0979ff571836f3616dfca727b516bcc5d3d;p=pandora-kernel.git

[IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.

Some nice improvements were made to rwsem in commit:

 424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3
 rwsem: wake queued readers when writer blocks on active read lock

but this change overlooked that ia64 had defined RWSEM_WAITING_BIAS
as an unsigned value, while the new code required a signed value (as
it is in every other architecture).

This fix suggested by the original patch author: Michel Lespinasse.

Signed-off-by: Tony Luck <tony.luck@intel.com>
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