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authorChristoph Hellwig <hch@lst.de>2019-11-14 17:34:36 +0300
committerJens Axboe <axboe@kernel.dk>2019-11-14 17:43:59 +0300
commitf0b870df80bc70dad432fd0c142bb709a49964f5 (patch)
treea937171d443f52ec38b6cf3cc6b602a2a6be09fc /fs/block_dev.c
parent142fe8f4bb169e8632024d51c64653a8bf140561 (diff)
downloadlinux-f0b870df80bc70dad432fd0c142bb709a49964f5.tar.xz
block: remove (__)blkdev_reread_part as an exported API
In general drivers should never mess with partition tables directly. Unfortunately s390 and loop do for somewhat historic reasons, but they can use bdev_disk_changed directly instead when we export it as they satisfy the sanity checks we have in __blkdev_reread_part. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> [dasd] Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/block_dev.c')
-rw-r--r--fs/block_dev.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index ae16466a67f7..9558a2f064b1 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1513,6 +1513,8 @@ int bdev_disk_changed(struct block_device *bdev, bool invalidate)
struct gendisk *disk = bdev->bd_disk;
int ret;
+ lockdep_assert_held(&bdev->bd_mutex);
+
rescan:
ret = blk_drop_partitions(disk, bdev);
if (ret)
@@ -1540,6 +1542,11 @@ rescan:
return ret;
}
+/*
+ * Only exported for for loop and dasd for historic reasons. Don't use in new
+ * code!
+ */
+EXPORT_SYMBOL_GPL(bdev_disk_changed);
/*
* bd_mutex locking: