From: Kees Cook Date: Fri, 17 Nov 2017 23:29:32 +0000 (-0800) Subject: fs/nilfs2: convert timers to use timer_setup() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7554e9c4cfa208acf3164a86c05aaa967b043425;p=linux.git fs/nilfs2: 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. This requires adding a pointer to hold the timer's target task, as the lifetime of sc_task doesn't appear to match the timer's task. Link: http://lkml.kernel.org/r/20171016235900.GA102729@beast Signed-off-by: Kees Cook Acked-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index f65392fecb5c7..472f0b53a7247 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2400,11 +2400,11 @@ static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode) return err; } -static void nilfs_construction_timeout(unsigned long data) +static void nilfs_construction_timeout(struct timer_list *t) { - struct task_struct *p = (struct task_struct *)data; + struct nilfs_sc_info *sci = from_timer(sci, t, sc_timer); - wake_up_process(p); + wake_up_process(sci->sc_timer_task); } static void @@ -2542,8 +2542,7 @@ static int nilfs_segctor_thread(void *arg) struct the_nilfs *nilfs = sci->sc_super->s_fs_info; int timeout = 0; - sci->sc_timer.data = (unsigned long)current; - sci->sc_timer.function = nilfs_construction_timeout; + sci->sc_timer_task = current; /* start sync. */ sci->sc_task = current; @@ -2674,7 +2673,7 @@ static struct nilfs_sc_info *nilfs_segctor_new(struct super_block *sb, INIT_LIST_HEAD(&sci->sc_gc_inodes); INIT_LIST_HEAD(&sci->sc_iput_queue); INIT_WORK(&sci->sc_iput_work, nilfs_iput_work_func); - init_timer(&sci->sc_timer); + timer_setup(&sci->sc_timer, nilfs_construction_timeout, 0); sci->sc_interval = HZ * NILFS_SC_DEFAULT_TIMEOUT; sci->sc_mjcp_freq = HZ * NILFS_SC_DEFAULT_SR_FREQ; diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index 1060949d7dd2a..84084a4d9b3e8 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -180,6 +180,7 @@ struct nilfs_sc_info { unsigned long sc_watermark; struct timer_list sc_timer; + struct task_struct *sc_timer_task; struct task_struct *sc_task; };