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Message-Id: <20100105220417.400092933@quilx.com> Date: Tue, 05 Jan 2010 16:04:17 -0600 From: Christoph Lameter <cl@...ux-foundation.org> To: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> Cc: linux-kernel@...r.kernel.org Subject: [RFC local_t removal V1 0/4] Remove local_t Current -next has only the trace subsystem left as a user of local_t Tracing uses local_t for per cpu safe atomic operations in the form of cmpxchg and additions. We already have a cmpxchg_local but no "local" form of addition. The patchset introduces a similar local primitive add_local() and then uses cmpxchg_local() and add_local() to remove local_t use from the trace subsystem. The last patch removes local_t support from the kernel tree. The support for add_local() is pretty basic. We can add more fancy inc/dec variants and more optimization in the next revision of the patchset. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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