diff options
| author | Jan Kara <jack@suse.cz> | 2019-10-21 10:37:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-13 08:43:18 +0100 |
| commit | f1f3ba27c04f566b33487b488477f3d930f67002 (patch) | |
| tree | f4f4b5cdf27af8b4928011aeb266254d29b285cf /fs | |
| parent | fbf86f6d5ab646639f438ffdd9f546cb4d983f2a (diff) | |
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>
Cc: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -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 9c073dbdc1b0..88c6d35ec71d 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1512,6 +1512,14 @@ 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: * @@ -1594,12 +1602,9 @@ 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; @@ -1632,12 +1637,9 @@ 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; } |