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block: move GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE to disk->event_flags

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GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE is all about the event reporting
mechanism, so move it to the event_flags field.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-11-22 14:06:13 +01:00 committed by Jens Axboe
parent 8641691646
commit 1545e0b419
4 changed files with 7 additions and 8 deletions
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2
block/bdev.c
View File

@ -837,7 +837,7 @@ struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder)
* used in blkdev_get/put().
*/
if ((mode & FMODE_WRITE) && !bdev->bd_write_holder &&
(disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
(disk->event_flags & DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE)) {
bdev->bd_write_holder = true;
unblock_events = false;
}

2
drivers/block/paride/pcd.c
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@ -928,8 +928,8 @@ static int pcd_init_unit(struct pcd_unit *cd, bool autoprobe, int port,
disk->minors = 1;
strcpy(disk->disk_name, cd->name); /* umm... */
disk->fops = &pcd_bdops;
disk->flags = GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
disk->events = DISK_EVENT_MEDIA_CHANGE;
disk->event_flags = DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE;
if (!pi_init(cd->pi, autoprobe, port, mode, unit, protocol, delay,
pcd_buffer, PI_PCD, verbose, cd->name)) {

5
drivers/scsi/sr.c
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@ -684,9 +684,10 @@ static int sr_probe(struct device *dev)
disk->minors = 1;
sprintf(disk->disk_name, "sr%d", minor);
disk->fops = &sr_bdops;
disk->flags = GENHD_FL_CD | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
disk->flags = GENHD_FL_CD;
disk->events = DISK_EVENT_MEDIA_CHANGE | DISK_EVENT_EJECT_REQUEST;
disk->event_flags = DISK_EVENT_FLAG_POLL | DISK_EVENT_FLAG_UEVENT;
disk->event_flags = DISK_EVENT_FLAG_POLL | DISK_EVENT_FLAG_UEVENT |
DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE;
blk_queue_rq_timeout(sdev->request_queue, SR_TIMEOUT);

6
include/linux/genhd.h
View File

@ -60,9 +60,6 @@ struct partition_meta_info {
* (``BLOCK_EXT_MAJOR``).
* This affects the maximum number of partitions.
*
* ``GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE`` (0x0100): event polling is
* blocked whenever a writer holds an exclusive lock.
*
* ``GENHD_FL_NO_PART_SCAN`` (0x0200): partition scanning is disabled.
* Used for loop devices in their default settings and some MMC
* devices.
@ -80,7 +77,6 @@ struct partition_meta_info {
#define GENHD_FL_CD 0x0008
#define GENHD_FL_SUPPRESS_PARTITION_INFO 0x0020
#define GENHD_FL_EXT_DEVT 0x0040
#define GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE 0x0100
#define GENHD_FL_NO_PART_SCAN 0x0200
#define GENHD_FL_HIDDEN 0x0400
@ -94,6 +90,8 @@ enum {
DISK_EVENT_FLAG_POLL = 1 << 0,
/* Forward events to udev */
DISK_EVENT_FLAG_UEVENT = 1 << 1,
/* Block event polling when open for exclusive write */
DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE = 1 << 2,
};
struct disk_events;