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btrfs: get the device in write mode when deleting it

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When we're deleting the device we should get it in write mode since
we're going to re-write the super block magic on that device. And it
should fail if the device is read-only.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
This commit is contained in:
Lukas Czerner
2012-12-07 10:09:19 +00:00
committed by Josef Bacik
parent cfa7a9ccda
commit cc975eb460
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/volumes.c
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@@ -1431,7 +1431,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
} }
} else { } else {
ret = btrfs_get_bdev_and_sb(device_path, ret = btrfs_get_bdev_and_sb(device_path,
FMODE_READ | FMODE_EXCL, FMODE_WRITE | FMODE_EXCL,
root->fs_info->bdev_holder, 0, root->fs_info->bdev_holder, 0,
&bdev, &bh); &bdev, &bh);
if (ret) if (ret)