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authorChristoph Hellwig <hch@lst.de>2023-06-01 11:44:52 +0200
committerJens Axboe <axboe@kernel.dk>2023-06-05 10:53:04 -0600
commit0718afd47f70cf46877c39c25d06b786e1a3f36c (patch)
treecfe87d979122314904b2f9639fcb0a62e40a028a /fs/ext4
parent00080f7fb7a599c26523037b202fb945f3141811 (diff)
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block: introduce holder ops
Add a new blk_holder_ops structure, which is passed to blkdev_get_by_* and installed in the block_device for exclusive claims. It will be used to allow the block layer to call back into the user of the block device for thing like notification of a removed device or a device resize. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Link: https://lore.kernel.org/r/20230601094459.1350643-10-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9680fe753e59..865625089ecc 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1103,7 +1103,8 @@ static struct block_device *ext4_blkdev_get(dev_t dev, struct super_block *sb)
{
struct block_device *bdev;
- bdev = blkdev_get_by_dev(dev, FMODE_READ|FMODE_WRITE|FMODE_EXCL, sb);
+ bdev = blkdev_get_by_dev(dev, FMODE_READ|FMODE_WRITE|FMODE_EXCL, sb,
+ NULL);
if (IS_ERR(bdev))
goto fail;
return bdev;