diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 5 | ||||
| -rw-r--r-- | drivers/block/floppy.c | 2 | ||||
| -rw-r--r-- | drivers/block/rbd.c | 10 | ||||
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 5 |
4 files changed, 18 insertions, 4 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index b6c8aaf4931b..5b17ec88ea05 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1337,8 +1337,11 @@ int drbd_submit_peer_request(struct drbd_device *device, return 0; } + /* Discards don't have any payload. + * But the scsi layer still expects a bio_vec it can use internally, + * see sd_setup_discard_cmnd() and blk_add_request_payload(). */ if (peer_req->flags & EE_IS_TRIM) - nr_pages = 0; /* discards don't have any payload. */ + nr_pages = 1; /* In most cases, we will only need one bio. But in case the lower * level restrictions happen to be different at this offset on this diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 677db049f55a..56d46ffb08e1 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3777,7 +3777,7 @@ static void floppy_rb0_cb(struct bio *bio, int err) int drive = cbdata->drive; if (err) { - pr_info("floppy: error %d while reading block 0", err); + pr_info("floppy: error %d while reading block 0\n", err); set_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags); } complete(&cbdata->complete); diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index bbeb404b3a07..b2c98c1bc037 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1431,6 +1431,14 @@ static bool obj_request_exists_test(struct rbd_obj_request *obj_request) return test_bit(OBJ_REQ_EXISTS, &obj_request->flags) != 0; } +static bool obj_request_overlaps_parent(struct rbd_obj_request *obj_request) +{ + struct rbd_device *rbd_dev = obj_request->img_request->rbd_dev; + + return obj_request->img_offset < + round_up(rbd_dev->parent_overlap, rbd_obj_bytes(&rbd_dev->header)); +} + static void rbd_obj_request_get(struct rbd_obj_request *obj_request) { dout("%s: obj %p (was %d)\n", __func__, obj_request, @@ -2748,7 +2756,7 @@ static int rbd_img_obj_request_submit(struct rbd_obj_request *obj_request) */ if (!img_request_write_test(img_request) || !img_request_layered_test(img_request) || - rbd_dev->parent_overlap <= obj_request->img_offset || + !obj_request_overlaps_parent(obj_request) || ((known = obj_request_known_test(obj_request)) && obj_request_exists_test(obj_request))) { diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 48eccb350180..089e72cd37be 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -622,8 +622,10 @@ static void zram_reset_device(struct zram *zram, bool reset_capacity) memset(&zram->stats, 0, sizeof(zram->stats)); zram->disksize = 0; - if (reset_capacity) + if (reset_capacity) { set_capacity(zram->disk, 0); + revalidate_disk(zram->disk); + } up_write(&zram->init_lock); } @@ -664,6 +666,7 @@ static ssize_t disksize_store(struct device *dev, zram->comp = comp; zram->disksize = disksize; set_capacity(zram->disk, zram->disksize >> SECTOR_SHIFT); + revalidate_disk(zram->disk); up_write(&zram->init_lock); return len; |