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block: add a return value to set_capacity_revalidate_and_notify

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Return if the function ended up sending an uevent or not.

Cc: stable@vger.kernel.org # v5.9
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-11-12 17:50:04 +01:00 committed by Jens Axboe
parent 2bd645b2d3
commit 7e890c37c2
2 changed files with 5 additions and 2 deletions
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5
block/genhd.c
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@ -49,7 +49,7 @@ static void disk_release_events(struct gendisk *disk);
* Set disk capacity and notify if the size is not currently
* zero and will not be set to zero
*/
void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
bool set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
bool update_bdev)
{
sector_t capacity = get_capacity(disk);
@ -62,7 +62,10 @@ void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
char *envp[] = { "RESIZE=1", NULL };
kobject_uevent_env(&disk_to_dev(disk)->kobj, KOBJ_CHANGE, envp);
return true;
}
return false;
}
EXPORT_SYMBOL_GPL(set_capacity_revalidate_and_notify);

2
include/linux/genhd.h
View File

@ -315,7 +315,7 @@ static inline int get_disk_ro(struct gendisk *disk)
extern void disk_block_events(struct gendisk *disk);
extern void disk_unblock_events(struct gendisk *disk);
extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
bool set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
bool update_bdev);
/* drivers/char/random.c */