[XFS] Makes more sense to use the fsxattr interface instead of adding new

ioctls for project IDs.

SGI-PV: 938145
SGI-Modid: xfs-linux:xfs-kern:22899a
Signed-off-by: NNathan Scott <nathans@sgi.com>

fs/xfs/linux-2.6/xfs_ioctl.c

@@ -777,8 +777,6 @@ 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:
@@ -1176,7 +1174,8 @@ xfs_ioc_xattr(
 
 	switch (cmd) {
 	case XFS_IOC_FSGETXATTR: {
-		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
+			     XFS_AT_NEXTENTS | XFS_AT_PROJID;
 		VOP_GETATTR(vp, &va, 0, NULL, error);
 		if (error)
 			return -error;
@@ -1184,6 +1183,7 @@ xfs_ioc_xattr(
 		fa.fsx_xflags	= va.va_xflags;
 		fa.fsx_extsize	= va.va_extsize;
 		fa.fsx_nextents = va.va_nextents;
+		fa.fsx_projid	= va.va_projid;
 
 		if (copy_to_user(arg, &fa, sizeof(fa)))
 			return -XFS_ERROR(EFAULT);
@@ -1198,9 +1198,10 @@ xfs_ioc_xattr(
 		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
 			attr_flags |= ATTR_NONBLOCK;
 
-		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
 		va.va_xflags  = fa.fsx_xflags;
 		va.va_extsize = fa.fsx_extsize;
+		va.va_projid  = fa.fsx_projid;
 
 		VOP_SETATTR(vp, &va, attr_flags, NULL, error);
 		if (!error)
@@ -1209,7 +1210,8 @@ xfs_ioc_xattr(
 	}
 
 	case XFS_IOC_FSGETXATTRA: {
-		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_ANEXTENTS;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
+			     XFS_AT_ANEXTENTS | XFS_AT_PROJID;
 		VOP_GETATTR(vp, &va, 0, NULL, error);
 		if (error)
 			return -error;
@@ -1217,6 +1219,7 @@ xfs_ioc_xattr(
 		fa.fsx_xflags	= va.va_xflags;
 		fa.fsx_extsize	= va.va_extsize;
 		fa.fsx_nextents = va.va_anextents;
+		fa.fsx_projid	= va.va_projid;
 
 		if (copy_to_user(arg, &fa, sizeof(fa)))
 			return -XFS_ERROR(EFAULT);
@@ -1260,26 +1263,6 @@ 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;
 	}

fs/xfs/linux-2.6/xfs_ioctl32.c

@@ -100,8 +100,6 @@ __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:

fs/xfs/xfs_fs.h

@@ -60,7 +60,8 @@ struct fsxattr {
 	__u32		fsx_xflags;	/* xflags field value (get/set) */
 	__u32		fsx_extsize;	/* extsize field value (get/set)*/
 	__u32		fsx_nextents;	/* nextents field value (get)	*/
-	unsigned char	fsx_pad[16];
+	__u32		fsx_projid;	/* project identifier (get/set) */
+	unsigned char	fsx_pad[12];
 };
 #endif
 
@@ -477,8 +478,6 @@ 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