diff options
| author | Josef Bacik <jbacik@fb.com> | 2016-12-03 00:19:12 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-12-03 07:06:29 +0300 |
| commit | ef77b515243b3499d62cf446eda6ca7e0a0b079c (patch) | |
| tree | 02aaf159bb8b651e9be9c4add83b9afca512a85d /drivers/block/nbd.c | |
| parent | 209200efa3db3d09380ee7c796efa73d900d5f3a (diff) | |
| download | linux-ef77b515243b3499d62cf446eda6ca7e0a0b079c.tar.xz | |
nbd: use loff_t for blocksize and nbd_set_size args
If we have large devices (say like the 40t drive I was trying to test with) we
will end up overflowing the int arguments to nbd_set_size and not get the right
size for our device. Fix this by using loff_t everywhere so I don't have to
think about this again. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/nbd.c')
| -rw-r--r-- | drivers/block/nbd.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index dc722a7adf58..92f5400edbd3 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -64,7 +64,7 @@ struct nbd_device { int num_connections; atomic_t recv_threads; wait_queue_head_t recv_wq; - int blksize; + loff_t blksize; loff_t bytesize; struct task_struct *task_recv; @@ -134,7 +134,7 @@ static void nbd_size_update(struct nbd_device *nbd, struct block_device *bdev) } static int nbd_size_set(struct nbd_device *nbd, struct block_device *bdev, - int blocksize, int nr_blocks) + loff_t blocksize, loff_t nr_blocks) { int ret; @@ -143,7 +143,7 @@ static int nbd_size_set(struct nbd_device *nbd, struct block_device *bdev, return ret; nbd->blksize = blocksize; - nbd->bytesize = (loff_t)blocksize * (loff_t)nr_blocks; + nbd->bytesize = blocksize * nr_blocks; nbd_size_update(nbd, bdev); @@ -930,7 +930,7 @@ static int nbd_dev_dbg_init(struct nbd_device *nbd) debugfs_create_file("tasks", 0444, dir, nbd, &nbd_dbg_tasks_ops); debugfs_create_u64("size_bytes", 0444, dir, &nbd->bytesize); debugfs_create_u32("timeout", 0444, dir, &nbd->tag_set.timeout); - debugfs_create_u32("blocksize", 0444, dir, &nbd->blksize); + debugfs_create_u64("blocksize", 0444, dir, &nbd->blksize); debugfs_create_file("flags", 0444, dir, nbd, &nbd_dbg_flags_ops); return 0; |