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mrlocks vs. rw_semaphores

To: linux-xfs@xxxxxxxxxxx
Subject: mrlocks vs. rw_semaphores
From: Alexander Kabaev <ak03@xxxxxxx>
Date: Tue, 24 Dec 2002 11:40:16 -0500
Organization: Verizon Data Services
Sender: linux-xfs-bounce@xxxxxxxxxxx
Looking through XFS change history, I noticed that several uses of mrlocks in
the tree have been replaced with Linux's native rw_semaphores. What was the
reason for this? Are rw_semaphores performing significantly better than
mrlocks, or is there a subtle difference in their semantics which make
rw_semaphores more suitable for the places they are used in now?

-- 
Alexander Kabaev


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