Messages in this thread | | | Date | Mon, 7 Apr 2014 12:26:38 +0400 | From | Vladimir Davydov <> | Subject | Re: [PATCH -mm 2/3] lockdep: mark rwsem_acquire_read as recursive |
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On 04/07/2014 12:13 PM, Peter Zijlstra wrote: > On Sun, Apr 06, 2014 at 07:33:51PM +0400, Vladimir Davydov wrote: >> rw_semaphore implementation allows recursing calls to down_read, but >> lockdep thinks that it doesn't. As a result, it will complain >> false-positively, e.g. if we do not observe some predefined locking >> order when taking an rw semaphore for reading and a mutex. >> >> This patch makes lockdep think rw semaphore is read-recursive, just like >> rw spin lock. > Uhm no rwsem isn't read recursive.
Yeah, I was mistaken and is already reworking my set. Please sorry for the noise.
Thanks.
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