[XFS] Add a get/set interface for XFS project identifiers.

SGI-PV: 932952
SGI-Modid: xfs-linux:xfs-kern:21938a

Signed-off-by: Nathan Scott <nathans@sgi.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 69809eef8a54..df17d93bd096 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -777,6 +777,8 @@ xfs_ioctl(
         case XFS_IOC_GETVERSION:
         case XFS_IOC_GETXFLAGS:
         case XFS_IOC_SETXFLAGS:
+        case XFS_IOC_GETPROJID:
+        case XFS_IOC_SETPROJID:
         case XFS_IOC_FSGETXATTR:
         case XFS_IOC_FSSETXATTR:
         case XFS_IOC_FSGETXATTRA:
@@ -1258,6 +1260,26 @@ xfs_ioc_xattr(
                 return 0;
         }
 
+        case XFS_IOC_GETPROJID: {
+                va.va_mask = XFS_AT_PROJID;
+                VOP_GETATTR(vp, &va, 0, NULL, error);
+                if (error)
+                        return -error;
+                if (copy_to_user(arg, &va.va_projid, sizeof(va.va_projid)))
+                        return -XFS_ERROR(EFAULT);
+                return 0;
+        }
+
+        case XFS_IOC_SETPROJID: {
+                if (!capable(CAP_SYS_ADMIN))
+                        return -EPERM;
+                va.va_mask = XFS_AT_PROJID;
+                if (copy_from_user(&va.va_projid, arg, sizeof(va.va_projid)))
+                        return -XFS_ERROR(EFAULT);
+                VOP_SETATTR(vp, &va, 0, NULL, error);
+                return -error;
+        }
+
         default:
                 return -ENOTTY;
         }