Use a local variable for the gendisk instead of the part0 block_device,
as the gendisk is what this function actually operates on.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
---
drivers/block/zram/zram_drv.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e9474b02012de..fd83fad59beb1 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1786,7 +1786,7 @@ static ssize_t reset_store(struct device *dev,
int ret;
unsigned short do_reset;
struct zram *zram;
- struct block_device *bdev;
+ struct gendisk *disk;
ret = kstrtou16(buf, 10, &do_reset);
if (ret)
@@ -1796,26 +1796,26 @@ static ssize_t reset_store(struct device *dev,
return -EINVAL;
zram = dev_to_zram(dev);
- bdev = zram->disk->part0;
+ disk = zram->disk;
- mutex_lock(&bdev->bd_disk->open_mutex);
+ mutex_lock(&disk->open_mutex);
/* Do not reset an active device or claimed device */
- if (bdev->bd_openers || zram->claim) {
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ if (disk->part0->bd_openers || zram->claim) {
+ mutex_unlock(&disk->open_mutex);
return -EBUSY;
}
/* From now on, anyone can't open /dev/zram[0-9] */
zram->claim = true;
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_unlock(&disk->open_mutex);
/* Make sure all the pending I/O are finished */
- sync_blockdev(bdev);
+ sync_blockdev(disk->part0);
zram_reset_device(zram);
- mutex_lock(&bdev->bd_disk->open_mutex);
+ mutex_lock(&disk->open_mutex);
zram->claim = false;
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_unlock(&disk->open_mutex);
return len;
}
--
2.30.2
