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| author | Christoph Hellwig <hch@lst.de> | 2019-11-14 15:34:35 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-11-14 07:43:53 -0700 |
| commit | 142fe8f4bb169e8632024d51c64653a8bf140561 (patch) | |
| tree | 8869801776302654d3442fd763bcde51afc74a32 /block | |
| parent | a1548b674403c0de70cc29a1575689917ba60157 (diff) | |
| download | linux-stable-142fe8f4bb169e8632024d51c64653a8bf140561.tar.gz linux-stable-142fe8f4bb169e8632024d51c64653a8bf140561.tar.bz2 linux-stable-142fe8f4bb169e8632024d51c64653a8bf140561.zip | |
block: fix bdev_disk_changed for non-partitioned devices
We still have to set the capacity to 0 if invalidating or call
revalidate_disk if not even if the disk has no partitions. Fix
that by merging rescan_partitions into bdev_disk_changed and just
stubbing out blk_add_partitions and blk_drop_partitions for
non-partitioned devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/ioctl.c | 6 | ||||
| -rw-r--r-- | block/partition-generic.c | 5 |
2 files changed, 7 insertions, 4 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index f6576a6d5778..5ccd9f016594 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -162,16 +162,14 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user */ int __blkdev_reread_part(struct block_device *bdev) { - struct gendisk *disk = bdev->bd_disk; - - if (!disk_part_scan_enabled(disk) || bdev != bdev->bd_contains) + if (!disk_part_scan_enabled(bdev->bd_disk) || bdev != bdev->bd_contains) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EACCES; lockdep_assert_held(&bdev->bd_mutex); - return rescan_partitions(disk, bdev, false); + return bdev_disk_changed(bdev, false); } EXPORT_SYMBOL(__blkdev_reread_part); diff --git a/block/partition-generic.c b/block/partition-generic.c index 2cbc23f6032c..61487421a319 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -445,6 +445,8 @@ int blk_drop_partitions(struct gendisk *disk, struct block_device *bdev) struct hd_struct *part; int res; + if (!disk_part_scan_enabled(disk)) + return 0; if (bdev->bd_part_count || bdev->bd_super) return -EBUSY; res = invalidate_partition(disk, 0); @@ -514,6 +516,9 @@ int blk_add_partitions(struct gendisk *disk, struct block_device *bdev) struct parsed_partitions *state; int ret = -EAGAIN, p, highest; + if (!disk_part_scan_enabled(disk)) + return 0; + state = check_partition(disk, bdev); if (!state) return 0; |