leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

md: use lockdep_assert_held

Browse Source 
lockdep_assert_held is a better way to assert lock held, and it works
for UP.

Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Shaohua Li 2017-10-18 22:08:13 -07:00
parent f6eca2d43e
commit efa4b77b00
3 changed files with 8 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/md/md.c
View File

@ -2335,7 +2335,7 @@ static void export_array(struct mddev *mddev)
static bool set_in_sync(struct mddev *mddev)
{
WARN_ON_ONCE(NR_CPUS != 1 && !spin_is_locked(&mddev->lock));
lockdep_assert_held(&mddev->lock);
if (!mddev->in_sync) {
mddev->sync_checkers++;
spin_unlock(&mddev->lock);
@ -6749,7 +6749,7 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors)
{
WARN(!mddev_is_locked(mddev), "%s: unlocked mddev!\n", __func__);
lockdep_assert_held(&mddev->reconfig_mutex);
if (mddev->external_size)
return;

5
drivers/md/md.h
View File

@ -500,11 +500,6 @@ static inline void mddev_lock_nointr(struct mddev *mddev)
mutex_lock(&mddev->reconfig_mutex);
}
static inline int mddev_is_locked(struct mddev *mddev)
{
return mutex_is_locked(&mddev->reconfig_mutex);
}
static inline int mddev_trylock(struct mddev *mddev)
{
return mutex_trylock(&mddev->reconfig_mutex);

12
drivers/md/raid5-cache.c
View File

@ -539,7 +539,7 @@ static void r5l_log_run_stripes(struct r5l_log *log)
{
struct r5l_io_unit *io, *next;
assert_spin_locked(&log->io_list_lock);
lockdep_assert_held(&log->io_list_lock);
list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
/* don't change list order */
@ -555,7 +555,7 @@ static void r5l_move_to_end_ios(struct r5l_log *log)
{
struct r5l_io_unit *io, *next;
assert_spin_locked(&log->io_list_lock);
lockdep_assert_held(&log->io_list_lock);
list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
/* don't change list order */
@ -1200,7 +1200,7 @@ static void r5l_run_no_mem_stripe(struct r5l_log *log)
{
struct stripe_head *sh;
assert_spin_locked(&log->io_list_lock);
lockdep_assert_held(&log->io_list_lock);
if (!list_empty(&log->no_mem_stripes)) {
sh = list_first_entry(&log->no_mem_stripes,
@ -1216,7 +1216,7 @@ static bool r5l_complete_finished_ios(struct r5l_log *log)
struct r5l_io_unit *io, *next;
bool found = false;
assert_spin_locked(&log->io_list_lock);
lockdep_assert_held(&log->io_list_lock);
list_for_each_entry_safe(io, next, &log->finished_ios, log_sibling) {
/* don't change list order */
@ -1388,7 +1388,7 @@ static void r5c_flush_stripe(struct r5conf *conf, struct stripe_head *sh)
* raid5_release_stripe() while holding conf->device_lock
*/
BUG_ON(test_bit(STRIPE_ON_RELEASE_LIST, &sh->state));
assert_spin_locked(&conf->device_lock);
lockdep_assert_held(&conf->device_lock);
list_del_init(&sh->lru);
atomic_inc(&sh->count);
@ -1415,7 +1415,7 @@ void r5c_flush_cache(struct r5conf *conf, int num)
int count;
struct stripe_head *sh, *next;
assert_spin_locked(&conf->device_lock);
lockdep_assert_held(&conf->device_lock);
if (!conf->log)
return;