[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>

5 files changed, 28 insertions, 2 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;
         }
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 0f8f1384eb36..be72aca59447 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -100,6 +100,8 @@ __linvfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
         case XFS_IOC_GETBMAP:
         case XFS_IOC_GETBMAPA:
         case XFS_IOC_GETBMAPX:
+        case XFS_IOC_SETPROJID:
+        case XFS_IOC_GETPROJID:
 /* not handled
         case XFS_IOC_FD_TO_HANDLE:
         case XFS_IOC_PATH_TO_HANDLE:
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 00466c3194ac..a6e57c647be4 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -426,7 +426,7 @@ typedef struct vattr {
         u_long          va_extsize;     /* file extent size */
         u_long          va_nextents;    /* number of extents in file */
         u_long          va_anextents;   /* number of attr extents in file */
-        int             va_projid;      /* project id */
+        prid_t          va_projid;      /* project id */
 } vattr_t;
 
 /*
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 6ee8443bf9d3..a7bd4687fa50 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -477,6 +477,8 @@ typedef struct xfs_handle {
 /*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 /*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 #define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
+#define XFS_IOC_SETPROJID       _IOWR('X', 57, __uint32_t)
+#define XFS_IOC_GETPROJID       _IOWR('X', 58, __uint32_t)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
index e4bf711e48ff..16f5371ce102 100644
--- a/fs/xfs/xfs_types.h
+++ b/fs/xfs/xfs_types.h
@@ -55,7 +55,7 @@ typedef signed long long int	__int64_t;
 typedef unsigned long long int  __uint64_t;
 
 typedef enum { B_FALSE,B_TRUE } boolean_t;
-typedef __int64_t               prid_t;         /* project ID */
+typedef __uint32_t              prid_t;         /* project ID */
 typedef __uint32_t              inst_t;         /* an instruction */
 
 typedef __s64                   xfs_off_t;      /* <file offset> type */