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authorEric Sesterhenn <snakebyte@gmx.de>2006-04-02 13:33:30 +0200
committerAdrian Bunk <bunk@stusta.de>2006-04-02 13:33:30 +0200
commit43dab9bbe9fda735589f2749004f639349966b20 (patch)
treef2ca02dfcdda7e39749e4ccba741d4fdcbefff79 /drivers/md
parent78bafebd461049a419df2f4b1f25efbee73c2439 (diff)
BUG_ON() Conversion in md/raid6main.c
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid6main.c29
1 files changed, 10 insertions, 19 deletions
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++;