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[PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing prob…
…lem) Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390 timer interrupt handler with this change. Currently update_times() calculates ticks by "jiffies - wall_jiffies", but callers of do_timer() should know how many ticks to update. Passing ticks get rid of this redundant calculation. Also there are another redundancy pointed out by Martin Schwidefsky. This cleanup make a barrier added by 5aee405 needless. So this patch removes it. As a bonus, this cleanup make wall_jiffies can be removed easily, since now wall_jiffies is always synced with jiffies. (This patch does not really remove wall_jiffies. It would be another cleanup patch) Signed-off-by: Atsushi Nemoto <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: john stultz <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Russell King <[email protected]> Cc: Ian Molton <[email protected]> Cc: Mikael Starvik <[email protected]> Acked-by: David Howells <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Hirokazu Takata <[email protected]> Acked-by: Ralf Baechle <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Kazumoto Kojima <[email protected]> Cc: Richard Curnow <[email protected]> Cc: William Lee Irwin III <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Miles Bader <[email protected]> Cc: Chris Zankel <[email protected]> Acked-by: "Luck, Tony" <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Roman Zippel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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