linux-kernel - RFC: better timer interface

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Message-Id: <20170516114812.10660-1-hch@lst.de>
Date:   Tue, 16 May 2017 13:48:03 +0200
From:   Christoph Hellwig <hch@....de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Mark Gross <mark.gross@...el.com>, Tejun Heo <tj@...nel.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: RFC: better timer interface

Hi all,

this series attempts to provide a "modern" timer interface where the
callback gets the timer_list structure as an argument so that it
can use container_of instead of having to cast to/from unsigned long
all the time (or even worse use function pointer casts, we have quite
a few of those as well).

For that it steals another bit from the cpu mask to add a modern flag,
and if that flag is set the different new function prototype is used.
Last but least new helpers to initialize these modern timers are added.
Instead of having a larger number of initialization macros we simply
pass the timer flags to them.