block: replace fmode_t with a block-specific type for block open flags

The only overlap between the block open flags mapped into the fmode_t and
other uses of fmode_t are FMODE_READ and FMODE_WRITE.  Define a new
blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and
->ioctl and stop abusing fmode_t.

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Jack Wang <[email protected]>		[rnbd]
Reviewed-by: Hannes Reinecke <[email protected]>
Reviewed-by: Christian Brauner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index cc9259307c94..f6ebcd00c410 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -356,8 +356,8 @@ static int swsusp_swap_check(void)
 		return res;
 	root_swap = res;
 
-	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, FMODE_WRITE,
-			NULL, NULL);
+	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device,
+			BLK_OPEN_WRITE, NULL, NULL);
 	if (IS_ERR(hib_resume_bdev))
 		return PTR_ERR(hib_resume_bdev);
 
@@ -1521,7 +1521,7 @@ int swsusp_check(bool snapshot_test)
 	void *holder = snapshot_test ? &swsusp_holder : NULL;
 	int error;
 
-	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, FMODE_READ,
+	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, BLK_OPEN_READ,
 					    holder, NULL);
 	if (!IS_ERR(hib_resume_bdev)) {
 		set_blocksize(hib_resume_bdev, PAGE_SIZE);