[patch] rbd: use gfp_flags parameter in rbd_header_from_disk()

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We should use the gfp_flags that the caller specified instead of
GFP_KERNEL here.

There is only one caller and it uses GFP_KERNEL, so this change is just
a cleanup and doesn't change how the code works.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index a6278e7..fc9341f 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -474,11 +474,11 @@ static int rbd_header_from_disk(struct rbd_image_header *header,
 		return -ENOMEM;
 	if (snap_count) {
 		header->snap_names = kmalloc(header->snap_names_len,
-					     GFP_KERNEL);
+					     gfp_flags);
 		if (!header->snap_names)
 			goto err_snapc;
 		header->snap_sizes = kmalloc(snap_count * sizeof(u64),
-					     GFP_KERNEL);
+					     gfp_flags);
 		if (!header->snap_sizes)
 			goto err_names;
 	} else {
--
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