Messages in this thread | | | Date | Fri, 15 Jun 2012 14:50:21 -0700 | From | Josh Triplett <> | Subject | Re: [PATCH tip/core/rcu 04/14] rcu: Add a gcc-style structure initializer for RCU pointers |
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On Fri, Jun 15, 2012 at 01:48:13PM -0700, Josh Triplett wrote: > On Fri, Jun 15, 2012 at 01:13:05PM -0700, Paul E. McKenney wrote: > > From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> > > > > RCU_INIT_POINTER() returns a value that is never used, and which should > > be abolished due to terminal ugliness: > > > > q = RCU_INIT_POINTER(global_p, p); > > > > However, there are two uses that cannot be handled by a do-while > > formulation because they do gcc-style initialization: > > > > RCU_INIT_POINTER(.real_cred, &init_cred), > > RCU_INIT_POINTER(.cred, &init_cred), > > > > This usage is clever, but not necessarily the nicest approach. This > > commit therefore creates an INIT_RCU_POINTER() macro that is specifically > > designed for gcc-style initialization. > > The concept seems fine, but the names seem entirely non-obvious. > RCU_INIT_POINTER versus INIT_RCU_POINTER?
Suggestion: RCU_POINTER_INITIALIZER, following the example of many other *_INITIALIZER macros elsewhere in the kernel.
- Josh Triplett
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