mm/page-writeback.c: convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Link: http://lkml.kernel.org/r/20171016225913.GA99214@beast Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Jeff Layton <jlayton@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -628,9 +628,9 @@ EXPORT_SYMBOL_GPL(wb_writeout_inc);
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* On idle system, we can be called long after we scheduled because we use
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* deferred timers so count with missed periods.
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*/
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static void writeout_period(unsigned long t)
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static void writeout_period(struct timer_list *t)
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{
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struct wb_domain *dom = (void *)t;
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struct wb_domain *dom = from_timer(dom, t, period_timer);
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int miss_periods = (jiffies - dom->period_time) /
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VM_COMPLETIONS_PERIOD_LEN;
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@ -653,8 +653,7 @@ int wb_domain_init(struct wb_domain *dom, gfp_t gfp)
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spin_lock_init(&dom->lock);
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setup_deferrable_timer(&dom->period_timer, writeout_period,
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(unsigned long)dom);
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timer_setup(&dom->period_timer, writeout_period, TIMER_DEFERRABLE);
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dom->dirty_limit_tstamp = jiffies;
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