From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Tesarik Date: Fri, 31 Oct 2008 08:52:22 +0000 Subject: Re: [PATCH V2 0/2] enable irqs when waiting for rwlocks Message-Id: <1225443142.6825.4.camel@elijah.suse.cz> List-Id: References: <1224777451.11530.52.camel@elijah.suse.cz> In-Reply-To: <1224777451.11530.52.camel@elijah.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org Cc: linux-ia64@vger.kernel.org On Thu, 2008-10-23 at 18:08 +0200, Petr Tesarik wrote: > New in V2: > * get rid of ugly #ifdef's in kernel/spinlock.h > * convert __raw_{read|write}_lock_flags to an inline func > > SGI has observed that on large systems, interrupts are not serviced for > a long period of time when waiting for a rwlock. The following patch > series re-enables irqs while waiting for the lock, resembling the code > which is already there for spinlocks. > > I only made the ia64 version, because the patch adds some overhead to > the fast path. I assume there is currently no demand to have this for > other architectures, because the systems are not so large. Of course, > the possibility to implement raw_{read|write}_lock_flags for any > architecture is still there. > > Petr Tesarik Any comments on my second patch series? Not even an Acked-by? Dislike of the concept? Should I post it again? I feel a bit too uncertain what the status is... Petr