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Subject[PATCH] btrfs: return EPERM in btrfs_rm_device()
Date
Currently there are error paths in btrfs_rm_device() where EINVAL is
returned telling the user they passed an invalid argument even though
they passed a valid device. Change to return EPERM instead as the
operation is not permitted.

Signed-off-by: Jerry Snitselaar <jerry.snitselaar@oracle.com>
---
fs/btrfs/volumes.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5cbb7f4..3e1586c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1392,14 +1392,14 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
if ((all_avail & BTRFS_BLOCK_GROUP_RAID10) && num_devices <= 4) {
printk(KERN_ERR "btrfs: unable to go below four devices "
"on raid10\n");
- ret = -EINVAL;
+ ret = -EPERM;
goto out;
}

if ((all_avail & BTRFS_BLOCK_GROUP_RAID1) && num_devices <= 2) {
printk(KERN_ERR "btrfs: unable to go below two "
"devices on raid1\n");
- ret = -EINVAL;
+ ret = -EPERM;
goto out;
}

@@ -1449,14 +1449,14 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)

if (device->is_tgtdev_for_dev_replace) {
pr_err("btrfs: unable to remove the dev_replace target dev\n");
- ret = -EINVAL;
+ ret = -EPERM;
goto error_brelse;
}

if (device->writeable && root->fs_info->fs_devices->rw_devices == 1) {
printk(KERN_ERR "btrfs: unable to remove the only writeable "
"device\n");
- ret = -EINVAL;
+ ret = -EPERM;
goto error_brelse;
}

--
1.8.2.rc1


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