xfs: wire up the v5 inumbers ioctl
Wire up the v5 INUMBERS ioctl.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index cab6832..ae7b743 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -914,6 +914,56 @@ xfs_ioc_bulkstat(
}
STATIC int
+xfs_inumbers_fmt(
+ struct xfs_ibulk *breq,
+ const struct xfs_inumbers *igrp)
+{
+ if (copy_to_user(breq->ubuffer, igrp, sizeof(struct xfs_inumbers)))
+ return -EFAULT;
+ return xfs_ibulk_advance(breq, sizeof(struct xfs_inumbers));
+}
+
+/* Handle the v5 inumbers ioctl. */
+STATIC int
+xfs_ioc_inumbers(
+ struct xfs_mount *mp,
+ unsigned int cmd,
+ struct xfs_inumbers_req __user *arg)
+{
+ struct xfs_bulk_ireq hdr;
+ struct xfs_ibulk breq = {
+ .mp = mp,
+ };
+ int error;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (XFS_FORCED_SHUTDOWN(mp))
+ return -EIO;
+
+ if (copy_from_user(&hdr, &arg->hdr, sizeof(hdr)))
+ return -EFAULT;
+
+ error = xfs_bulk_ireq_setup(mp, &hdr, &breq, arg->inumbers);
+ if (error == XFS_ITER_ABORT)
+ goto out_teardown;
+ if (error < 0)
+ return error;
+
+ error = xfs_inumbers(&breq, xfs_inumbers_fmt);
+ if (error)
+ return error;
+
+out_teardown:
+ xfs_bulk_ireq_teardown(&hdr, &breq);
+ if (copy_to_user(&arg->hdr, &hdr, sizeof(hdr)))
+ return -EFAULT;
+
+ return 0;
+}
+
+STATIC int
xfs_ioc_fsgeometry(
struct xfs_mount *mp,
void __user *arg,
@@ -2079,6 +2129,8 @@ xfs_file_ioctl(
case XFS_IOC_BULKSTAT:
return xfs_ioc_bulkstat(mp, cmd, arg);
+ case XFS_IOC_INUMBERS:
+ return xfs_ioc_inumbers(mp, cmd, arg);
case XFS_IOC_FSGEOMETRY_V1:
return xfs_ioc_fsgeometry(mp, arg, 3);