diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rnull.rs | 1 | ||||
| -rw-r--r-- | drivers/block/swim.c | 2 | ||||
| -rw-r--r-- | drivers/block/virtio_blk.c | 7 | ||||
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 15 |
4 files changed, 17 insertions, 8 deletions
diff --git a/drivers/block/rnull.rs b/drivers/block/rnull.rs index 5de7223beb4d..9cca05dcf772 100644 --- a/drivers/block/rnull.rs +++ b/drivers/block/rnull.rs @@ -28,6 +28,7 @@ module! { type: NullBlkModule, name: "rnull_mod", author: "Andreas Hindborg", + description: "Rust implementation of the C null block driver", license: "GPL v2", } diff --git a/drivers/block/swim.c b/drivers/block/swim.c index 126f151c4f2c..be4ac58afe41 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -944,7 +944,7 @@ static void swim_remove(struct platform_device *dev) static struct platform_driver swim_driver = { .probe = swim_probe, - .remove_new = swim_remove, + .remove = swim_remove, .driver = { .name = CARDNAME, }, diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index c0cdba71f436..3efe378f1386 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -1586,9 +1586,12 @@ static void virtblk_remove(struct virtio_device *vdev) static int virtblk_freeze(struct virtio_device *vdev) { struct virtio_blk *vblk = vdev->priv; + struct request_queue *q = vblk->disk->queue; /* Ensure no requests in virtqueues before deleting vqs. */ - blk_mq_freeze_queue(vblk->disk->queue); + blk_mq_freeze_queue(q); + blk_mq_quiesce_queue_nowait(q); + blk_mq_unfreeze_queue(q); /* Ensure we don't receive any more interrupts */ virtio_reset_device(vdev); @@ -1612,8 +1615,8 @@ static int virtblk_restore(struct virtio_device *vdev) return ret; virtio_device_ready(vdev); + blk_mq_unquiesce_queue(vblk->disk->queue); - blk_mq_unfreeze_queue(vblk->disk->queue); return 0; } #endif diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 3dee026988dc..45df5eeabc5e 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -614,6 +614,12 @@ static ssize_t backing_dev_store(struct device *dev, } nr_pages = i_size_read(inode) >> PAGE_SHIFT; + /* Refuse to use zero sized device (also prevents self reference) */ + if (!nr_pages) { + err = -EINVAL; + goto out; + } + bitmap_sz = BITS_TO_LONGS(nr_pages) * sizeof(long); bitmap = kvzalloc(bitmap_sz, GFP_KERNEL); if (!bitmap) { @@ -1438,12 +1444,16 @@ static void zram_meta_free(struct zram *zram, u64 disksize) size_t num_pages = disksize >> PAGE_SHIFT; size_t index; + if (!zram->table) + return; + /* Free all pages that are still in this zram device */ for (index = 0; index < num_pages; index++) zram_free_page(zram, index); zs_destroy_pool(zram->mem_pool); vfree(zram->table); + zram->table = NULL; } static bool zram_meta_alloc(struct zram *zram, u64 disksize) @@ -2320,11 +2330,6 @@ static void zram_reset_device(struct zram *zram) zram->limit_pages = 0; - if (!init_done(zram)) { - up_write(&zram->init_lock); - return; - } - set_capacity_and_notify(zram->disk, 0); part_stat_set_all(zram->disk->part0, 0); |