linux-kernel - [PATCH 5/9] block: use revalidate_disk_size in set_capacity_revalidate_and

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Message-Id: <20200901155748.2884-6-hch@lst.de>
Date:   Tue,  1 Sep 2020 17:57:44 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Josef Bacik <josef@...icpanda.com>,
        Dan Williams <dan.j.williams@...el.com>, dm-devel@...hat.com,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        nbd@...er.debian.org, ceph-devel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-raid@...r.kernel.org, linux-nvdimm@...ts.01.org,
        linux-nvme@...ts.infradead.org, linux-scsi@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH 5/9] block: use revalidate_disk_size in set_capacity_revalidate_and_notify

Only virtio_blk and xen-blkfront set the revalidate argument to true,
and both do not implement the ->revalidate_disk method.  So switch
to the helper that just updates the size instead.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 block/genhd.c         | 7 +++----
 include/linux/genhd.h | 4 ++--
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index a2c0ec694918e5..431d4081b50ec7 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -50,14 +50,13 @@ static void disk_release_events(struct gendisk *disk);
  * zero and will not be set to zero
  */
 void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
-					bool revalidate)
+					bool update_bdev)
 {
 	sector_t capacity = get_capacity(disk);
 
 	set_capacity(disk, size);
-
-	if (revalidate)
-		revalidate_disk(disk);
+	if (update_bdev)
+		revalidate_disk_size(disk, true);
 
 	if (capacity != size && capacity != 0 && size != 0) {
 		char *envp[] = { "RESIZE=1", NULL };
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 8e9c9d3a493fae..c340b392452ce6 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -315,8 +315,8 @@ 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);
-extern void set_capacity_revalidate_and_notify(struct gendisk *disk,
-			sector_t size, bool revalidate);
+void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
+		bool update_bdev);
 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
 
 /* drivers/char/random.c */
-- 
2.28.0