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.
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Cc: Jeff Layton <jlayton@xxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
mm/page-writeback.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 94854e243b11..65ba42c7c7da 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -628,9 +628,9 @@ EXPORT_SYMBOL_GPL(wb_writeout_inc);
* On idle system, we can be called long after we scheduled because we use
* deferred timers so count with missed periods.
*/
-static void writeout_period(unsigned long t)
+static void writeout_period(struct timer_list *t)
{
- struct wb_domain *dom = (void *)t;
+ struct wb_domain *dom = from_timer(dom, t, period_timer);
int miss_periods = (jiffies - dom->period_time) /
VM_COMPLETIONS_PERIOD_LEN;
@@ -653,8 +653,7 @@ int wb_domain_init(struct wb_domain *dom, gfp_t gfp)
spin_lock_init(&dom->lock);
- setup_deferrable_timer(&dom->period_timer, writeout_period,
- (unsigned long)dom);
+ timer_setup(&dom->period_timer, writeout_period, TIMER_DEFERRABLE);
dom->dirty_limit_tstamp = jiffies;
--
2.7.4
--
Kees Cook
Pixel Security
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