diff options
| author | Jan Kara <jack@suse.cz> | 2019-10-21 11:37:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 12:19:07 +0300 |
| commit | 2a5b5131487b65d68f3c46a6217d6fb5baaf631b (patch) | |
| tree | 192679b654d96f70aaccbc0c55ee4ea2e0fa9817 /fs/block_dev.c | |
| parent | 0e7dd198aa84fec3906e725a0f76617699175c7f (diff) | |
| download | linux-2a5b5131487b65d68f3c46a6217d6fb5baaf631b.tar.xz | |
bdev: Factor out bdev revalidation into a common helper
commit 731dc4868311ee097757b8746eaa1b4f8b2b4f1c upstream.
Factor out code handling revalidation of bdev on disk change into a
common helper.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 1c25dae083a8..cb63a458442f 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1430,6 +1430,14 @@ EXPORT_SYMBOL(bd_set_size); static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); +static void bdev_disk_changed(struct block_device *bdev, bool invalidate) +{ + if (invalidate) + invalidate_partitions(bdev->bd_disk, bdev); + else + rescan_partitions(bdev->bd_disk, bdev); +} + /* * bd_mutex locking: * @@ -1512,12 +1520,9 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) * The latter is necessary to prevent ghost * partitions on a removed medium. */ - if (bdev->bd_invalidated) { - if (!ret) - rescan_partitions(disk, bdev); - else if (ret == -ENOMEDIUM) - invalidate_partitions(disk, bdev); - } + if (bdev->bd_invalidated && + (!ret || ret == -ENOMEDIUM)) + bdev_disk_changed(bdev, ret == -ENOMEDIUM); if (ret) goto out_clear; @@ -1550,12 +1555,9 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) if (bdev->bd_disk->fops->open) ret = bdev->bd_disk->fops->open(bdev, mode); /* the same as first opener case, read comment there */ - if (bdev->bd_invalidated) { - if (!ret) - rescan_partitions(bdev->bd_disk, bdev); - else if (ret == -ENOMEDIUM) - invalidate_partitions(bdev->bd_disk, bdev); - } + if (bdev->bd_invalidated && + (!ret || ret == -ENOMEDIUM)) + bdev_disk_changed(bdev, ret == -ENOMEDIUM); if (ret) goto out_unlock_bdev; } |