diff options
| author | Sasha Levin <sasha.levin@oracle.com> | 2015-07-25 01:19:58 +0300 |
|---|---|---|
| committer | NeilBrown <neilb@suse.com> | 2015-08-31 20:39:39 +0300 |
| commit | 25b2edfa3b6940b73180d2735cd19fdf58d0cf91 (patch) | |
| tree | e696c04cdb531172cb3eda7a623a1b1129878eab | |
| parent | 6cbd81487f7cfa30e22537bf7cd07f48c4e7164d (diff) | |
| download | linux-25b2edfa3b6940b73180d2735cd19fdf58d0cf91.tar.xz | |
md: setup safemode_timer before it's being used
We used to set up the safemode_timer timer in md_run. If md_run
would fail before the timer was set up we'd end up trying to modify
a timer that doesn't have a callback function when we access safe_delay_store,
which would trigger a BUG.
neilb: delete init_timer() call as setup_timer() does that.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: NeilBrown <neilb@suse.com>
| -rw-r--r-- | drivers/md/md.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 84dc5d7a445b..cdc080bf09d4 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -502,6 +502,8 @@ static void mddev_put(struct mddev *mddev) bioset_free(bs); } +static void md_safemode_timeout(unsigned long data); + void mddev_init(struct mddev *mddev) { mutex_init(&mddev->open_mutex); @@ -509,7 +511,8 @@ void mddev_init(struct mddev *mddev) mutex_init(&mddev->bitmap_info.mutex); INIT_LIST_HEAD(&mddev->disks); INIT_LIST_HEAD(&mddev->all_mddevs); - init_timer(&mddev->safemode_timer); + setup_timer(&mddev->safemode_timer, md_safemode_timeout, + (unsigned long) mddev); atomic_set(&mddev->active, 1); atomic_set(&mddev->openers, 0); atomic_set(&mddev->active_io, 0); @@ -3276,8 +3279,6 @@ int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale) return 0; } -static void md_safemode_timeout(unsigned long data); - static ssize_t safe_delay_show(struct mddev *mddev, char *page) { @@ -5204,8 +5205,6 @@ int md_run(struct mddev *mddev) atomic_set(&mddev->max_corr_read_errors, MD_DEFAULT_MAX_CORRECTED_READ_ERRORS); mddev->safemode = 0; - mddev->safemode_timer.function = md_safemode_timeout; - mddev->safemode_timer.data = (unsigned long) mddev; mddev->safemode_delay = (200 * HZ)/1000 +1; /* 200 msec delay */ mddev->in_sync = 1; smp_wmb(); |