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SubjectRe: [PATCH next] OF: convert devtree lock from rw_lock to raw spinlock
From: Paul Gortmaker <>
Date: Mon, 4 Feb 2013 11:05:21 -0500

> From: Thomas Gleixner <>
> With the locking cleanup in place (from "OF: Fixup resursive
> locking code paths"), we can now do the conversion from the
> rw_lock to a raw spinlock as required for preempt-rt.
> The previous cleanup and the this conversion were originally
> separate since they predated when mainline got raw spinlock (in
> commit c2f21ce2e31286a "locking: Implement new raw_spinlock").
> So, at that point in time, the cleanup was considered plausible
> for mainline, but not this conversion. In any case, we've kept
> them separate as it makes for easier review and better bisection.
> Signed-off-by: Thomas Gleixner <>
> [PG: taken from preempt-rt, update subject & add a commit log]
> Signed-off-by: Paul Gortmaker <>

Acked-by: David S. Miller <>

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