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block: hoist block size validation code to a separate function

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Hoist the block size validation code to bdev_validate_blocksize so that
we can call it from filesystems that don't care about the bdev pagecache
manipulations of set_blocksize.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/174543795720.4139148.840349813093799165.stgit@frogsfrogsfrogs
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Darrick J. Wong
2025-04-23 12:53:57 -07:00
committed by Jens Axboe
parent c0e473a0d2
commit e03463d247
2 changed files with 28 additions and 6 deletions
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include/linux/blkdev.h
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@@ -1614,6 +1614,7 @@ static inline void bio_end_io_acct(struct bio *bio, unsigned long start_time)
return bio_end_io_acct_remapped(bio, start_time, bio->bi_bdev);
}
int bdev_validate_blocksize(struct block_device *bdev, int block_size);
int set_blocksize(struct file *file, int size);
int lookup_bdev(const char *pathname, dev_t *dev);