summaryrefslogtreecommitdiffstats
path: root/drivers/md
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-target.c3
-rw-r--r--drivers/md/raid1.c6
-rw-r--r--drivers/md/raid10.c6
-rw-r--r--drivers/md/raid5.c34
-rw-r--r--drivers/md/raid6main.c29
5 files changed, 27 insertions, 51 deletions
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index aecd9e0c261..64fd8e79ea4 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -78,8 +78,7 @@ void dm_put_target_type(struct target_type *t)
if (--ti->use == 0)
module_put(ti->tt.module);
- if (ti->use < 0)
- BUG();
+ BUG_ON(ti->use < 0);
up_read(&_lock);
return;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 9b374c91db6..6081941de1b 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1558,8 +1558,7 @@ static int init_resync(conf_t *conf)
int buffs;
buffs = RESYNC_WINDOW / RESYNC_BLOCK_SIZE;
- if (conf->r1buf_pool)
- BUG();
+ BUG_ON(conf->r1buf_pool);
conf->r1buf_pool = mempool_create(buffs, r1buf_pool_alloc, r1buf_pool_free,
conf->poolinfo);
if (!conf->r1buf_pool)
@@ -1732,8 +1731,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
!conf->fullsync &&
!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
break;
- if (sync_blocks < (PAGE_SIZE>>9))
- BUG();
+ BUG_ON(sync_blocks < (PAGE_SIZE>>9));
if (len > (sync_blocks<<9))
len = sync_blocks<<9;
}
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ab90a6d1202..617012bc107 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1117,8 +1117,7 @@ static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error)
for (i=0; i<conf->copies; i++)
if (r10_bio->devs[i].bio == bio)
break;
- if (i == conf->copies)
- BUG();
+ BUG_ON(i == conf->copies);
update_head_pos(i, r10_bio);
d = r10_bio->devs[i].devnum;
@@ -1518,8 +1517,7 @@ static int init_resync(conf_t *conf)
int buffs;
buffs = RESYNC_WINDOW / RESYNC_BLOCK_SIZE;
- if (conf->r10buf_pool)
- BUG();
+ BUG_ON(conf->r10buf_pool);
conf->r10buf_pool = mempool_create(buffs, r10buf_pool_alloc, r10buf_pool_free, conf);
if (!conf->r10buf_pool)
return -ENOMEM;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index dae740adaf6..31843604049 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -73,10 +73,8 @@ static void print_raid5_conf (raid5_conf_t *conf);
static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh)
{
if (atomic_dec_and_test(&sh->count)) {
- if (!list_empty(&sh->lru))
- BUG();
- if (atomic_read(&conf->active_stripes)==0)
- BUG();
+ BUG_ON(!list_empty(&sh->lru));
+ BUG_ON(atomic_read(&conf->active_stripes)==0);
if (test_bit(STRIPE_HANDLE, &sh->state)) {
if (test_bit(STRIPE_DELAYED, &sh->state))
list_add_tail(&sh->lru, &conf->delayed_list);
@@ -184,10 +182,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx, int
raid5_conf_t *conf = sh->raid_conf;
int i;
- if (atomic_read(&sh->count) != 0)
- BUG();
- if (test_bit(STRIPE_HANDLE, &sh->state))
- BUG();
+ BUG_ON(atomic_read(&sh->count) != 0);
+ BUG_ON(test_bit(STRIPE_HANDLE, &sh->state));
CHECK_DEVLOCK();
PRINTK("init_stripe called, stripe %llu\n",
@@ -269,8 +265,7 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector
init_stripe(sh, sector, pd_idx, disks);
} else {
if (atomic_read(&sh->count)) {
- if (!list_empty(&sh->lru))
- BUG();
+ BUG_ON(!list_empty(&sh->lru));
} else {
if (!test_bit(STRIPE_HANDLE, &sh->state))
atomic_inc(&conf->active_stripes);
@@ -465,8 +460,7 @@ static int drop_one_stripe(raid5_conf_t *conf)
spin_unlock_irq(&conf->device_lock);
if (!sh)
return 0;
- if (atomic_read(&sh->count))
- BUG();
+ BUG_ON(atomic_read(&sh->count));
shrink_buffers(sh, conf->pool_size);
kmem_cache_free(conf->slab_cache, sh);
atomic_dec(&conf->active_stripes);
@@ -882,8 +876,7 @@ static void compute_parity(struct stripe_head *sh, int method)
ptr[0] = page_address(sh->dev[pd_idx].page);
switch(method) {
case READ_MODIFY_WRITE:
- if (!test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags))
- BUG();
+ BUG_ON(!test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags));
for (i=disks ; i-- ;) {
if (i==pd_idx)
continue;
@@ -896,7 +889,7 @@ static void compute_parity(struct stripe_head *sh, int method)
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
- if (sh->dev[i].written) BUG();
+ BUG_ON(sh->dev[i].written);
sh->dev[i].written = chosen;
check_xor();
}
@@ -912,7 +905,7 @@ static void compute_parity(struct stripe_head *sh, int method)
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
- if (sh->dev[i].written) BUG();
+ BUG_ON(sh->dev[i].written);
sh->dev[i].written = chosen;
}
break;
@@ -995,8 +988,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
if (*bip && (*bip)->bi_sector < bi->bi_sector + ((bi->bi_size)>>9))
goto overlap;
- if (*bip && bi->bi_next && (*bip) != bi->bi_next)
- BUG();
+ BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next);
if (*bip)
bi->bi_next = *bip;
*bip = bi;
@@ -1430,8 +1422,7 @@ static void handle_stripe(struct stripe_head *sh)
set_bit(STRIPE_HANDLE, &sh->state);
if (failed == 0) {
char *pagea;
- if (uptodate != disks)
- BUG();
+ BUG_ON(uptodate != disks);
compute_parity(sh, CHECK_PARITY);
uptodate--;
pagea = page_address(sh->dev[sh->pd_idx].page);
@@ -2096,8 +2087,7 @@ static void raid5d (mddev_t *mddev)
list_del_init(first);
atomic_inc(&sh->count);
- if (atomic_read(&sh->count)!= 1)
- BUG();
+ BUG_ON(atomic_read(&sh->count)!= 1);
spin_unlock_irq(&conf->device_lock);
handled++;
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index ab64b37e499..bc69355e010 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -91,10 +91,8 @@ static void print_raid6_conf (raid6_conf_t *conf);
static void __release_stripe(raid6_conf_t *conf, struct stripe_head *sh)
{
if (atomic_dec_and_test(&sh->count)) {
- if (!list_empty(&sh->lru))
- BUG();
- if (atomic_read(&conf->active_stripes)==0)
- BUG();
+ BUG_ON(!list_empty(&sh->lru));
+ BUG_ON(atomic_read(&conf->active_stripes)==0);
if (test_bit(STRIPE_HANDLE, &sh->state)) {
if (test_bit(STRIPE_DELAYED, &sh->state))
list_add_tail(&sh->lru, &conf->delayed_list);
@@ -202,10 +200,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
raid6_conf_t *conf = sh->raid_conf;
int disks = conf->raid_disks, i;
- if (atomic_read(&sh->count) != 0)
- BUG();
- if (test_bit(STRIPE_HANDLE, &sh->state))
- BUG();
+ BUG_ON(atomic_read(&sh->count) != 0);
+ BUG_ON(test_bit(STRIPE_HANDLE, &sh->state));
CHECK_DEVLOCK();
PRINTK("init_stripe called, stripe %llu\n",
@@ -284,13 +280,11 @@ static struct stripe_head *get_active_stripe(raid6_conf_t *conf, sector_t sector
init_stripe(sh, sector, pd_idx);
} else {
if (atomic_read(&sh->count)) {
- if (!list_empty(&sh->lru))
- BUG();
+ BUG_ON(!list_empty(&sh->lru));
} else {
if (!test_bit(STRIPE_HANDLE, &sh->state))
atomic_inc(&conf->active_stripes);
- if (list_empty(&sh->lru))
- BUG();
+ BUG_ON(list_empty(&sh->lru));
list_del_init(&sh->lru);
}
}
@@ -353,8 +347,7 @@ static int drop_one_stripe(raid6_conf_t *conf)
spin_unlock_irq(&conf->device_lock);
if (!sh)
return 0;
- if (atomic_read(&sh->count))
- BUG();
+ BUG_ON(atomic_read(&sh->count));
shrink_buffers(sh, conf->raid_disks);
kmem_cache_free(conf->slab_cache, sh);
atomic_dec(&conf->active_stripes);
@@ -780,7 +773,7 @@ static void compute_parity(struct stripe_head *sh, int method)
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
- if (sh->dev[i].written) BUG();
+ BUG_ON(sh->dev[i].written);
sh->dev[i].written = chosen;
}
break;
@@ -970,8 +963,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
if (*bip && (*bip)->bi_sector < bi->bi_sector + ((bi->bi_size)>>9))
goto overlap;
- if (*bip && bi->bi_next && (*bip) != bi->bi_next)
- BUG();
+ BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next);
if (*bip)
bi->bi_next = *bip;
*bip = bi;
@@ -1906,8 +1898,7 @@ static void raid6d (mddev_t *mddev)
list_del_init(first);
atomic_inc(&sh->count);
- if (atomic_read(&sh->count)!= 1)
- BUG();
+ BUG_ON(atomic_read(&sh->count)!= 1);
spin_unlock_irq(&conf->device_lock);
handled++;