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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 /fs/block_dev.c | |
| parent | a1548b674403c0de70cc29a1575689917ba60157 (diff) | |
| download | linux-142fe8f4bb169e8632024d51c64653a8bf140561.tar.gz linux-142fe8f4bb169e8632024d51c64653a8bf140561.tar.bz2 linux-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 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index ec10dacd18d0..ae16466a67f7 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1508,9 +1508,9 @@ EXPORT_SYMBOL(bd_set_size); static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); -static int rescan_partitions(struct gendisk *disk, struct block_device *bdev, - bool invalidate) +int bdev_disk_changed(struct block_device *bdev, bool invalidate) { + struct gendisk *disk = bdev->bd_disk; int ret; rescan: @@ -1526,32 +1526,21 @@ rescan: check_disk_size_change(disk, bdev, !invalidate); bdev->bd_invalidated = 0; - if (!get_capacity(disk)) { + if (get_capacity(disk)) { + ret = blk_add_partitions(disk, bdev); + if (ret == -EAGAIN) + goto rescan; + } else { /* * Tell userspace that the media / partition table may have * changed. */ kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE); - return 0; } - ret = blk_add_partitions(disk, bdev); - if (ret == -EAGAIN) - goto rescan; return ret; } - -static void bdev_disk_changed(struct block_device *bdev, bool invalidate) -{ - if (disk_part_scan_enabled(bdev->bd_disk)) { - rescan_partitions(bdev->bd_disk, bdev, invalidate); - } else { - check_disk_size_change(bdev->bd_disk, bdev, !invalidate); - bdev->bd_invalidated = 0; - } -} - /* * bd_mutex locking: * |