From: Christoph Hellwig <hch@lst.de>
Date: Wed, 30 Mar 2022 07:29:05 +0200
Subject: [PATCH] zram: cleanup zram_remove
Git-commit: 7a86d6dc1493326feb0d3ce5af2f34401dd3defa
Patch-mainline: v5.19-rc1
References: jsc#PED-1183
Remove the bdev variable and just use the gendisk pointed to by the
zram_device directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220330052917.2566582-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/block/zram/zram_drv.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 387d8697d700..70d4bd662ab6 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1986,19 +1986,18 @@ static int zram_add(void)
static int zram_remove(struct zram *zram)
{
- struct block_device *bdev = zram->disk->part0;
bool claimed;
- mutex_lock(&bdev->bd_disk->open_mutex);
- if (bdev->bd_openers) {
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_lock(&zram->disk->open_mutex);
+ if (zram->disk->part0->bd_openers) {
+ mutex_unlock(&zram->disk->open_mutex);
return -EBUSY;
}
claimed = zram->claim;
if (!claimed)
zram->claim = true;
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_unlock(&zram->disk->open_mutex);
zram_debugfs_unregister(zram);
@@ -2010,7 +2009,7 @@ static int zram_remove(struct zram *zram)
;
} else {
/* Make sure all the pending I/O are finished */
- sync_blockdev(bdev);
+ sync_blockdev(zram->disk->part0);
zram_reset_device(zram);
}
--
2.35.3