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由 Tony Luck 提交于
Some nice improvements were made to rwsem in commit: 424acaae 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: NTony Luck <tony.luck@intel.com>
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