linux-kernel - [PATCH 3/7] block: simplify set_init

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Message-Id: <20200626080158.1998621-4-hch@lst.de>
Date:   Fri, 26 Jun 2020 10:01:54 +0200
From:   Christoph Hellwig <hch@....de>
To:     axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] block: simplify set_init_blocksize

The loop to increase the initial block size doesn't really make any
sense, as the AND operation won't match for powers of two if it didn't
for the initial block size.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/block_dev.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 0e0d43dc27d331..8b7a9c76d33edf 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -106,13 +106,7 @@ EXPORT_SYMBOL(invalidate_bdev);
 static void set_init_blocksize(struct block_device *bdev)
 {
 	unsigned bsize = bdev_logical_block_size(bdev);
-	loff_t size = i_size_read(bdev->bd_inode);
 
-	while (bsize < PAGE_SIZE) {
-		if (size & bsize)
-			break;
-		bsize <<= 1;
-	}
 	bdev->bd_block_size = bsize;
 	bdev->bd_inode->i_blkbits = blksize_bits(bsize);
 }
-- 
2.26.2