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.
Cc: Ryusuke Konishi <[email protected]> Cc: [email protected] Signed-off-by: Kees Cook <[email protected]> --- fs/nilfs2/segment.c | 11 +++++------ fs/nilfs2/segment.h | 1 + 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 70ded52dc1dd..07b6154a081e 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2404,11 +2404,11 @@ 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 @@ -2546,8 +2546,7 @@ 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; @@ -2678,7 +2677,7 @@ 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 1060949d7dd2..84084a4d9b3e 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; }; -- 2.7.4 -- Kees Cook Pixel Security
