mtd: block: use a simple bool to track open for write

Instead of propagating the fmode_t, just use a bool to track if a mtd
block device was opened for writing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Richard Weinberger <richard@nod.at>
Link: https://lore.kernel.org/r/20230608110258.189493-23-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index f0bb09f..bd0b754 100644 (file)
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -208,7 +208,7 @@ static int blktrans_open(struct gendisk *disk, fmode_t mode)
        ret = __get_mtd_device(dev->mtd);
        if (ret)
                goto error_release;
-       dev->file_mode = mode;
+       dev->writable = mode & FMODE_WRITE;
 
 unlock:
        dev->open++;

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index a0a1194..fa476fb 100644 (file)
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -294,7 +294,7 @@ static void mtdblock_release(struct mtd_blktrans_dev *mbd)
                 * It was the last usage. Free the cache, but only sync if
                 * opened for writing.
                 */
-               if (mbd->file_mode & FMODE_WRITE)
+               if (mbd->writable)
                        mtd_sync(mbd->mtd);
                vfree(mtdblk->cache_data);
        }

diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index 15cc9b9..6e47143 100644 (file)
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -34,7 +34,7 @@ struct mtd_blktrans_dev {
        struct blk_mq_tag_set *tag_set;
        spinlock_t queue_lock;
        void *priv;
-       fmode_t file_mode;
+       bool writable;
 };
 
 struct mtd_blktrans_ops {