diff mbox series

[06/24] block: add a return value to set_capacity_and_notify

Message ID 20201111082658.3401686-7-hch@lst.de (mailing list archive)
State Superseded
Headers show
Series [01/24] block: remove the call to __invalidate_device in check_disk_size_change | expand

Commit Message

Christoph Hellwig Nov. 11, 2020, 8:26 a.m. UTC 
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(-)

Comments

Hannes Reinecke Nov. 11, 2020, 1:08 p.m. UTC | #1 
On 11/11/20 9:26 AM, Christoph Hellwig wrote:
> 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(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
diff mbox series

Patch

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;