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block: fix the exclusive open mask in disk_scan_partitions 

FMODE_EXEC has nothing to do with exclusive opens, and even is of
the wrong type.  We need to check for BLK_OPEN_EXCL here.

Fixes: 985958b858 ("block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230621124914.185992-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-06-21 14:49:14 +02:00 committed by Jens Axboe
parent b6f3f28f60
commit 56e71bdf32
1 changed files with 1 additions and 1 deletions
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2
block/genhd.c
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@ -366,7 +366,7 @@ int disk_scan_partitions(struct gendisk *disk, blk_mode_t mode)
}
set_bit(GD_NEED_PART_SCAN, &disk->state);
bdev = blkdev_get_by_dev(disk_devt(disk), mode & ~FMODE_EXEC, NULL,
bdev = blkdev_get_by_dev(disk_devt(disk), mode & ~BLK_OPEN_EXCL, NULL,
NULL);
if (IS_ERR(bdev))
ret = PTR_ERR(bdev);