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btrfs: return btrfs error code for dev excl ops err

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now threads can return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
as defined in btrfs.h for the dev excl operation error in
the FS, which means with this kernel would stop logging
(almost an user error) into the /var/log/messages

v2: accepts Josef' comment

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Anand Jain 2013-08-21 11:44:48 +08:00 committed by Chris Mason
parent 77cef2ec54
commit e57138b3e9
1 changed files with 4 additions and 8 deletions
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12
fs/btrfs/ioctl.c
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@ -1394,9 +1394,8 @@ static noinline int btrfs_ioctl_resize(struct file *file,
if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
1)) {
pr_info("btrfs: dev add/delete/balance/replace/resize operation in progress\n");
mnt_drop_write_file(file);
return -EINVAL;
return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
}
mutex_lock(&root->fs_info->volume_mutex);
@ -2379,8 +2378,7 @@ static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
1)) {
pr_info("btrfs: dev add/delete/balance/replace/resize operation in progress\n");
return -EINVAL;
return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
}
mutex_lock(&root->fs_info->volume_mutex);
@ -3673,8 +3671,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg)
if (atomic_xchg(
&root->fs_info->mutually_exclusive_operation_running,
1)) {
pr_info("btrfs: dev add/delete/balance/replace/resize operation in progress\n");
ret = -EINPROGRESS;
ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
} else {
ret = btrfs_dev_replace_start(root, p);
atomic_set(
@ -3918,8 +3915,7 @@ again:
} else {
/* this is (1) */
mutex_unlock(&fs_info->balance_mutex);
pr_info("btrfs: dev add/delete/balance/replace/resize operation in progress\n");
ret = -EINVAL;
ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS;
goto out;
}