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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>
This commit is contained in:
committed by
Jens Axboe
parent
00080f7fb7
commit
0718afd47f
@@ -2616,7 +2616,7 @@ static int journal_init_dev(struct super_block *super,
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if (jdev == super->s_dev)
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blkdev_mode &= ~FMODE_EXCL;
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journal->j_dev_bd = blkdev_get_by_dev(jdev, blkdev_mode,
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journal);
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journal, NULL);
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journal->j_dev_mode = blkdev_mode;
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if (IS_ERR(journal->j_dev_bd)) {
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result = PTR_ERR(journal->j_dev_bd);
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@@ -2632,7 +2632,8 @@ static int journal_init_dev(struct super_block *super,
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}
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journal->j_dev_mode = blkdev_mode;
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journal->j_dev_bd = blkdev_get_by_path(jdev_name, blkdev_mode, journal);
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journal->j_dev_bd = blkdev_get_by_path(jdev_name, blkdev_mode, journal,
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NULL);
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if (IS_ERR(journal->j_dev_bd)) {
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result = PTR_ERR(journal->j_dev_bd);
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journal->j_dev_bd = NULL;
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