[07/78] nbd: move the task_recv check into nbd_size_update

Message ID 20201116145809.410558-8-hch@lst.de
State New
Headers show
Series
  • [01/78] block: remove the call to __invalidate_device in check_disk_size_change
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Commit Message

Christoph Hellwig Nov. 16, 2020, 2:56 p.m.
nbd_size_update is about to acquire a few more callers, so lift the check
into the function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
 drivers/block/nbd.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index a9a0b49ff16101..48054051e281e6 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -299,8 +299,11 @@  static void nbd_size_clear(struct nbd_device *nbd)
 static void nbd_size_update(struct nbd_device *nbd)
 {
 	struct nbd_config *config = nbd->config;
-	struct block_device *bdev = bdget_disk(nbd->disk, 0);
 	sector_t nr_sectors = config->bytesize >> 9;
+	struct block_device *bdev;
+
+	if (!nbd->task_recv)
+		return;
 
 	if (config->flags & NBD_FLAG_SEND_TRIM) {
 		nbd->disk->queue->limits.discard_granularity = config->blksize;
@@ -309,7 +312,9 @@  static void nbd_size_update(struct nbd_device *nbd)
 	}
 	blk_queue_logical_block_size(nbd->disk->queue, config->blksize);
 	blk_queue_physical_block_size(nbd->disk->queue, config->blksize);
+
 	set_capacity(nbd->disk, nr_sectors);
+	bdev = bdget_disk(nbd->disk, 0);
 	if (bdev) {
 		if (bdev->bd_disk)
 			bd_set_nr_sectors(bdev, nr_sectors);
@@ -326,8 +331,7 @@  static void nbd_size_set(struct nbd_device *nbd, loff_t blocksize,
 	struct nbd_config *config = nbd->config;
 	config->blksize = blocksize;
 	config->bytesize = blocksize * nr_blocks;
-	if (nbd->task_recv != NULL)
-		nbd_size_update(nbd);
+	nbd_size_update(nbd);
 }
 
 static void nbd_complete_rq(struct request *req)