[PATCH 10/26] nbd: move setting the cache control flags to __nbd_set_size

Christoph Hellwig <[email protected]>
Newsgroups dev.linux.lists.drbd-dev,dev.linux.lists.dm-devel,dev.linux.lists.nvdimm,dev.linux.lists.virtualization,org.infradead.lists.linux-mtd,org.infradead.lists.linux-nvme,org.infradead.lists.linux-um,org.kernel.vger.ceph-devel,org.kernel.vger.linux-bcache,org.kernel.vger.linux-block,org.kernel.vger.linux-m68k,org.kernel.vger.linux-mmc,org.kernel.vger.linux-raid,org.kernel.vger.linux-s390,org.kernel.vger.linux-scsi,org.ozlabs.lists.linuxppc-dev,org.xenproject.lists.xen-devel
Message-ID <[email protected]>
Move setting the cache control flags in nbd in preparation for moving
these flags into the queue_limits structure.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
Reviewed-by: Damien Le Moal <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
---
 drivers/block/nbd.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index ad887d614d5b3f..44b8c671921e5c 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -342,6 +342,12 @@ static int __nbd_set_size(struct nbd_device *nbd, loff_t bytesize,
 		lim.max_hw_discard_sectors = UINT_MAX;
 	else
 		lim.max_hw_discard_sectors = 0;
+	if (!(nbd->config->flags & NBD_FLAG_SEND_FLUSH))
+		blk_queue_write_cache(nbd->disk->queue, false, false);
+	else if (nbd->config->flags & NBD_FLAG_SEND_FUA)
+		blk_queue_write_cache(nbd->disk->queue, true, true);
+	else
+		blk_queue_write_cache(nbd->disk->queue, true, false);
 	lim.logical_block_size = blksize;
 	lim.physical_block_size = blksize;
 	error = queue_limits_commit_update(nbd->disk->queue, &lim);
@@ -1286,19 +1292,10 @@ static void nbd_bdev_reset(struct nbd_device *nbd)
 
 static void nbd_parse_flags(struct nbd_device *nbd)
 {
-	struct nbd_config *config = nbd->config;
-	if (config->flags & NBD_FLAG_READ_ONLY)
+	if (nbd->config->flags & NBD_FLAG_READ_ONLY)
 		set_disk_ro(nbd->disk, true);
 	else
 		set_disk_ro(nbd->disk, false);
-	if (config->flags & NBD_FLAG_SEND_FLUSH) {
-		if (config->flags & NBD_FLAG_SEND_FUA)
-			blk_queue_write_cache(nbd->disk->queue, true, true);
-		else
-			blk_queue_write_cache(nbd->disk->queue, true, false);
-	}
-	else
-		blk_queue_write_cache(nbd->disk->queue, false, false);
 }
 
 static void send_disconnects(struct nbd_device *nbd)
-- 
2.43.0
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