diff options
author | Christoph Hellwig <hch@lst.de> | 2022-03-30 07:29:06 +0200 |
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committer | Jens Axboe <axboe@kernel.dk> | 2022-04-18 06:54:09 -0600 |
commit | dbdc1be32591af023db2812706f01e6cd2f42bfc (patch) | |
tree | ecdb59b4ebcdc9bb0f1eea5e086aa9ea0e3c733f /drivers/block/zram | |
parent | 7a86d6dc1493326feb0d3ce5af2f34401dd3defa (diff) | |
download | lwn-dbdc1be32591af023db2812706f01e6cd2f42bfc.tar.gz lwn-dbdc1be32591af023db2812706f01e6cd2f42bfc.zip |
block: add a disk_openers helper
Add a helper that returns the openers for a given gendisk to avoid having
drivers poke into disk->part0 to get at this information in a somewhat
cumbersome way.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220330052917.2566582-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/zram')
-rw-r--r-- | drivers/block/zram/zram_drv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 70d4bd662ab6..dc5ac5963377 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1800,7 +1800,7 @@ static ssize_t reset_store(struct device *dev, mutex_lock(&disk->open_mutex); /* Do not reset an active device or claimed device */ - if (disk->part0->bd_openers || zram->claim) { + if (disk_openers(disk) || zram->claim) { mutex_unlock(&disk->open_mutex); return -EBUSY; } @@ -1989,7 +1989,7 @@ static int zram_remove(struct zram *zram) bool claimed; mutex_lock(&zram->disk->open_mutex); - if (zram->disk->part0->bd_openers) { + if (disk_openers(zram->disk)) { mutex_unlock(&zram->disk->open_mutex); return -EBUSY; } |