/*
- * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
-/*
- * This file contains the implementation of the xfs_efi_log_item
- * and xfs_efd_log_item items.
- */
-
#include "xfs.h"
-
-#include "xfs_macros.h"
+#include "xfs_fs.h"
#include "xfs_types.h"
-#include "xfs_inum.h"
#include "xfs_log.h"
+#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_sb.h"
-#include "xfs_dir.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
return (efip);
}
+/*
+ * Copy an EFI format buffer from the given buf, and into the destination
+ * EFI format structure.
+ * The given buffer can be in 32 bit or 64 bit form (which has different padding),
+ * one of which will be the native format for this kernel.
+ * It will handle the conversion of formats if necessary.
+ */
+int
+xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
+{
+ xfs_efi_log_format_t *src_efi_fmt = (xfs_efi_log_format_t *)buf->i_addr;
+ uint i;
+ uint len = sizeof(xfs_efi_log_format_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);
+ uint len32 = sizeof(xfs_efi_log_format_32_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t);
+ uint len64 = sizeof(xfs_efi_log_format_64_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t);
+
+ if (buf->i_len == len) {
+ memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
+ return 0;
+ } else if (buf->i_len == len32) {
+ xfs_efi_log_format_32_t *src_efi_fmt_32 =
+ (xfs_efi_log_format_32_t *)buf->i_addr;
+
+ dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
+ dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
+ dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents;
+ dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id;
+ for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
+ dst_efi_fmt->efi_extents[i].ext_start =
+ src_efi_fmt_32->efi_extents[i].ext_start;
+ dst_efi_fmt->efi_extents[i].ext_len =
+ src_efi_fmt_32->efi_extents[i].ext_len;
+ }
+ return 0;
+ } else if (buf->i_len == len64) {
+ xfs_efi_log_format_64_t *src_efi_fmt_64 =
+ (xfs_efi_log_format_64_t *)buf->i_addr;
+
+ dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
+ dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
+ dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents;
+ dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id;
+ for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
+ dst_efi_fmt->efi_extents[i].ext_start =
+ src_efi_fmt_64->efi_extents[i].ext_start;
+ dst_efi_fmt->efi_extents[i].ext_len =
+ src_efi_fmt_64->efi_extents[i].ext_len;
+ }
+ return 0;
+ }
+ return EFSCORRUPTED;
+}
+
/*
* This is called by the efd item code below to release references to
* the given efi item. Each efd calls this with the number of
projects / linux-2.6-omap-h63xx.git / blobdiff