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Christoph Hellwig
05bdb99653 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 <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>
 2023-06-12 08:04:05 -06:00
Christoph Hellwig
5e4ea83467 block: remove unused fmode_t arguments from ioctl handlers 
A few ioctl handlers have fmode_t arguments that are entirely unused,
remove them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20230608110258.189493-27-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
cfb425761c block: move a few internal definitions out of blkdev.h 
All these helpers are only used in core block code, so move them out of
the public header.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-26-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
bd6abfc8e7 ubd: remove commented out code in ubd_open 
This code has been dead forever, make sure it doesn't show up in code
searches.

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/20230608110258.189493-25-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
99b0778081 rnbd-srv: replace sess->open_flags with a "bool readonly" 
Stop passing the fmode_t around and just use a simple bool to track if
an export is read-only.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20230608110258.189493-24-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
658afed19c 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>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
7d9d7d59d4 nvme: replace the fmode_t argument to the nvme ioctl handlers with a simple bool 
Instead of passing a fmode_t and only checking it fo0r FMODE_WRITE, pass
a bool open_for_write to prepare for callers that won't have the fmode_t.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-22-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
1991299e49 scsi: replace the fmode_t argument to ->sg_io_fn with a simple bool 
Instead of passing a fmode_t and only checking it for FMODE_WRITE, pass
a bool open_for_write to prepare for callers that won't have the fmode_t.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-21-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
2e80089c18 scsi: replace the fmode_t argument to scsi_ioctl with a simple bool 
Instead of passing a fmode_t and only checking it for FMODE_WRITE, pass
a bool open_for_write to prepare for callers that won't have the fmode_t.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-20-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
5f4eb9d541 scsi: replace the fmode_t argument to scsi_cmd_allowed with a simple bool 
Instead of passing a fmode_t and only checking it for FMODE_WRITE, pass
a bool open_for_write to prepare for callers that won't have the fmode_t.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-19-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
81b1fb7d17 fs: remove sb->s_mode 
There is no real need to store the open mode in the super_block now.
It is only used by f2fs, which can easily recalculate it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-18-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
3f0b3e785e block: add a sb_open_mode helper 
Add a helper to return the open flags for blkdev_get_by* for passed in
super block flags instead of open coding the logic in many places.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-17-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
2736e8eeb0 block: use the holder as indication for exclusive opens 
The current interface for exclusive opens is rather confusing as it
requires both the FMODE_EXCL flag and a holder.  Remove the need to pass
FMODE_EXCL and just key off the exclusive open off a non-NULL holder.

For blkdev_put this requires adding the holder argument, which provides
better debug checking that only the holder actually releases the hold,
but at the same time allows removing the now superfluous mode argument.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: David Sterba <dsterba@suse.com>		[btrfs]
Acked-by: Jack Wang <jinpu.wang@ionos.com>		[rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-16-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
2ef789288a btrfs: don't pass a holder for non-exclusive blkdev_get_by_path 
Passing a holder to blkdev_get_by_path when FMODE_EXCL isn't set doesn't
make sense, so pass NULL instead and remove the holder argument from the
call chains the only end up in non-FMODE_EXCL blkdev_get_by_path calls.

Exclusive mode for device scanning is not used since commit 50d281fc43
("btrfs: scan device in non-exclusive mode")".

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/20230608110258.189493-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
5ee607675d rnbd-srv: don't pass a holder for non-exclusive blkdev_get_by_path 
Passing a holder to blkdev_get_by_path when FMODE_EXCL isn't set doesn't
make sense, so pass NULL instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20230608110258.189493-14-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
29499ab060 bcache: don't pass a stack address to blkdev_get_by_path 
sb is just an on-stack pointer that can easily be reused by other calls.
Switch to use the bcache-wide bcache_kobj instead as there is no need to
claim per-bcache device anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20230608110258.189493-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
c889d0793d swsusp: don't pass a stack address to blkdev_get_by_path 
holder is just an on-stack pointer that can easily be reused by other calls,
replace it with a static variable that doesn't change.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-12-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
7ee34cbc29 block: rename blkdev_close to blkdev_release 
Make the function name match the method name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-11-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
ae220766d8 block: remove the unused mode argument to ->release 
The mode argument to the ->release block_device_operation is never used,
so remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>			[rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
d32e2bf837 block: pass a gendisk to ->open 
->open is only called on the whole device.  Make that explicit by
passing a gendisk instead of the block_device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>		[rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:04 -06:00
Christoph Hellwig
444aa2c58c block: pass a gendisk on bdev_check_media_change 
bdev_check_media_change should only ever be called for the whole device.
Pass a gendisk to make that explicit and rename the function to
disk_check_media_change.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:03 -06:00
Christoph Hellwig
7ae24fcee9 cdrom: remove the unused mode argument to cdrom_release 
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:03 -06:00
Christoph Hellwig
8cdf433e2b cdrom: track if a cdrom_device_info was opened for data 
Set a flag when a cdrom_device_info is opened for writing, instead of
trying to figure out this at release time.  This will allow to eventually
remove the mode argument to the ->release block_device_operation as
nothing but the CDROM drivers uses that argument.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Acked-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20230608110258.189493-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:03 -06:00
Christoph Hellwig
a4cec8bc14 cdrom: remove the unused cdrom_close_write release code 
cdrom_close_write is empty, and the for_data flag it is keyed off is
never set.  Remove all this clutter.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:03 -06:00
Christoph Hellwig
473399b50d cdrom: remove the unused mode argument to cdrom_ioctl 
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-12 08:04:03 -06:00