diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bitmap.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm-crypt.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-io.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm.c | 2 | ||||
| -rw-r--r-- | drivers/md/md.c | 16 |
5 files changed, 19 insertions, 7 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 5554adaa58f9..e61e0efe9ec7 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -863,9 +863,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) /* We need 4 bits per page, rounded up to a multiple of sizeof(unsigned long) */ bitmap->filemap_attr = kzalloc( - (((num_pages*4/8)+sizeof(unsigned long)-1) - /sizeof(unsigned long)) - *sizeof(unsigned long), + roundup( DIV_ROUND_UP(num_pages*4, 8), sizeof(unsigned long)), GFP_KERNEL); if (!bitmap->filemap_attr) goto out; diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 4c2471ee054a..d8121234c347 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -867,7 +867,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad4; } - cc->bs = bioset_create(MIN_IOS, MIN_IOS, 4); + cc->bs = bioset_create(MIN_IOS, MIN_IOS); if (!cc->bs) { ti->error = "Cannot allocate crypt bioset"; goto bad_bs; diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 4eb73d395213..8bdc8a87b249 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -60,7 +60,7 @@ static int resize_pool(unsigned int new_ios) if (!_io_pool) return -ENOMEM; - _bios = bioset_create(16, 16, 4); + _bios = bioset_create(16, 16); if (!_bios) { mempool_destroy(_io_pool); _io_pool = NULL; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 3668b170ea68..11a98df298ec 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1012,7 +1012,7 @@ static struct mapped_device *alloc_dev(int minor) if (!md->tio_pool) goto bad3; - md->bs = bioset_create(16, 16, 4); + md->bs = bioset_create(16, 16); if (!md->bs) goto bad_no_bioset; diff --git a/drivers/md/md.c b/drivers/md/md.c index 2a9b6a07e3a2..509171ca7fa8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1378,6 +1378,12 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) return err; } +static void delayed_delete(struct work_struct *ws) +{ + mdk_rdev_t *rdev = container_of(ws, mdk_rdev_t, del_work); + kobject_del(&rdev->kobj); +} + static void unbind_rdev_from_array(mdk_rdev_t * rdev) { char b[BDEVNAME_SIZE]; @@ -1390,7 +1396,12 @@ static void unbind_rdev_from_array(mdk_rdev_t * rdev) printk(KERN_INFO "md: unbind<%s>\n", bdevname(rdev->bdev,b)); rdev->mddev = NULL; sysfs_remove_link(&rdev->kobj, "block"); - kobject_del(&rdev->kobj); + + /* We need to delay this, otherwise we can deadlock when + * writing to 'remove' to "dev/state" + */ + INIT_WORK(&rdev->del_work, delayed_delete); + schedule_work(&rdev->del_work); } /* @@ -3389,6 +3400,9 @@ static int do_md_stop(mddev_t * mddev, int mode) sysfs_remove_link(&mddev->kobj, nm); } + /* make sure all delayed_delete calls have finished */ + flush_scheduled_work(); + export_array(mddev); mddev->array_size = 0; |