[PATCH 06/24] block: add a return value to set_capacity_and_notify
From: Christoph Hellwig <hch@lst.de>
Date: 2020-11-11 08:27:34
Also in:
ceph-devel, dm-devel, linux-block, linux-fsdevel, linux-nvme, linux-scsi, xen-devel
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Return if the function ended up sending an uevent or not. Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/genhd.c | 7 +++++-- include/linux/genhd.h | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/block/genhd.c b/block/genhd.c
index d8d9d6c1c916e1..8c350fecfe8bfe 100644
--- a/block/genhd.c
+++ b/block/genhd.c@@ -47,9 +47,9 @@ 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. + * be set to zero. Returns true if a uevent was sent, otherwise false. */ -void set_capacity_and_notify(struct gendisk *disk, sector_t size) +bool set_capacity_and_notify(struct gendisk *disk, sector_t size) { sector_t capacity = get_capacity(disk);
@@ -60,7 +60,10 @@ void set_capacity_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_and_notify);
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 596f31b5a3e133..4b22bfd9336e1a 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h@@ -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_and_notify(struct gendisk *disk, sector_t size); +bool set_capacity_and_notify(struct gendisk *disk, sector_t size); /* drivers/char/random.c */ extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
--
2.28.0