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authorIlya Dryomov <idryomov@gmail.com>2017-05-23 11:49:54 -0400
committerJens Axboe <axboe@fb.com>2017-05-30 10:15:07 -0400
commitaf622b86665881ffa96bc77fb89c94fae02cfa6b (patch)
treeefce28ae8a62183077aedbfa7996e4a103e6068d
parent8aa6382907fa495e6b8b8184b53e36d142ffd8da (diff)
nbd: nbd_reset() call in nbd_dev_add() is redundant
There is nothing to clear -- nbd_device has just been allocated. Fold nbd_reset() into its other caller, nbd_config_put(). Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/block/nbd.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 9a7bb2c29447..e725d8d5ab0b 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -937,14 +937,6 @@ static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg)
937 return -ENOSPC; 937 return -ENOSPC;
938} 938}
939 939
940/* Reset all properties of an NBD device */
941static void nbd_reset(struct nbd_device *nbd)
942{
943 nbd->config = NULL;
944 nbd->tag_set.timeout = 0;
945 queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
946}
947
948static void nbd_bdev_reset(struct block_device *bdev) 940static void nbd_bdev_reset(struct block_device *bdev)
949{ 941{
950 if (bdev->bd_openers > 1) 942 if (bdev->bd_openers > 1)
@@ -1029,7 +1021,10 @@ static void nbd_config_put(struct nbd_device *nbd)
1029 } 1021 }
1030 kfree(config->socks); 1022 kfree(config->socks);
1031 } 1023 }
1032 nbd_reset(nbd); 1024 nbd->config = NULL;
1025
1026 nbd->tag_set.timeout = 0;
1027 queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
1033 1028
1034 mutex_unlock(&nbd->config_lock); 1029 mutex_unlock(&nbd->config_lock);
1035 nbd_put(nbd); 1030 nbd_put(nbd);
@@ -1483,7 +1478,6 @@ static int nbd_dev_add(int index)
1483 disk->fops = &nbd_fops; 1478 disk->fops = &nbd_fops;
1484 disk->private_data = nbd; 1479 disk->private_data = nbd;
1485 sprintf(disk->disk_name, "nbd%d", index); 1480 sprintf(disk->disk_name, "nbd%d", index);
1486 nbd_reset(nbd);
1487 add_disk(disk); 1481 add_disk(disk);
1488 nbd_total_devices++; 1482 nbd_total_devices++;
1489 return index; 1483 return index;