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

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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 <hch@lst.de>
Acked-by: Jack Wang <jinpu.wang@ionos.com>		[rnbd]
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2023-06-08 13:02:55 +02:00
committed by Jens Axboe
parent 5e4ea83467
commit 05bdb99653
82 changed files with 334 additions and 315 deletions
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3
include/linux/cdrom.h
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@@ -13,6 +13,7 @@
#include <linux/fs.h> /* not really needed, later.. */
#include <linux/list.h>
#include <linux/blkdev.h>
#include <scsi/scsi_common.h>
#include <uapi/linux/cdrom.h>
@@ -101,7 +102,7 @@ int cdrom_read_tocentry(struct cdrom_device_info *cdi,
struct cdrom_tocentry *entry);
/* the general block_device operations structure: */
int cdrom_open(struct cdrom_device_info *cdi, fmode_t mode);
int cdrom_open(struct cdrom_device_info *cdi, blk_mode_t mode);
void cdrom_release(struct cdrom_device_info *cdi);
int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
unsigned int cmd, unsigned long arg);