From: Lukas Czerner Date: Fri, 7 Dec 2012 10:09:19 +0000 (+0000) Subject: btrfs: get the device in write mode when deleting it X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cc975eb4605c5765a5d5e7a51d24ba5a1cda269e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git btrfs: get the device in write mode when deleting it 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 --- diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 5cce6aa74012..86279c37de64 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1431,7 +1431,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) } } else { ret = btrfs_get_bdev_and_sb(device_path, - FMODE_READ | FMODE_EXCL, + FMODE_WRITE | FMODE_EXCL, root->fs_info->bdev_holder, 0, &bdev, &bh); if (ret)