[PATCH 37/60] xfs: split out inode log item format definition

Dave Chinner
2013-06-19T04:52:43Z

From: Dave Chinner <dchinner@redhat.com>

The EFI/EFD item format definitions are shared with userspace. Split
the out of header files that contain kernel only defintions to make
it simple to shared them.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_extfree_item.h | 90 ++-------------------------------
fs/xfs/xfs_extfree_item_format.h | 101 ++++++++++++++++++++++++++++++++++++++
2 files changed, 105 insertions(+), 86 deletions(-)
create mode 100644 fs/xfs/xfs_extfree_item_format.h

diff --git a/fs/xfs/xfs_extfree_item.h b/fs/xfs/xfs_extfree_item.h
index 4322224..0b49c87f 100644
--- a/fs/xfs/xfs_extfree_item.h
+++ b/fs/xfs/xfs_extfree_item.h
@@ -18,92 +18,12 @@
#ifndef __XFS_EXTFREE_ITEM_H__
#define __XFS_EXTFREE_ITEM_H__

-struct xfs_mount;
-struct kmem_zone;
-
-typedef struct xfs_extent {
- xfs_dfsbno_t ext_start;
- xfs_extlen_t ext_len;
-} xfs_extent_t;
-
-/*
- * Since an xfs_extent_t has types (start:64, len: 32)
- * there are different alignments on 32 bit and 64 bit kernels.
- * So we provide the different variants for use by a
- * conversion routine.
- */
-
-typedef struct xfs_extent_32 {
- __uint64_t ext_start;
- __uint32_t ext_len;
-} __attribute__((packed)) xfs_extent_32_t;
-
-typedef struct xfs_extent_64 {
- __uint64_t ext_start;
- __uint32_t ext_len;
- __uint32_t ext_pad;
-} xfs_extent_64_t;
-
-/*
- * This is the structure used to lay out an efi log item in the
- * log. The efi_extents field is a variable size array whose
- * size is given by efi_nextents.
- */
-typedef struct xfs_efi_log_format {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
- xfs_extent_t efi_extents[1]; /* array of extents to free */
-} xfs_efi_log_format_t;
+#include "xfs_extfree_item_format.h"

-typedef struct xfs_efi_log_format_32 {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
- xfs_extent_32_t efi_extents[1]; /* array of extents to free */
-} __attribute__((packed)) xfs_efi_log_format_32_t;
+/* kernel only EFI/EFD definitions */

-typedef struct xfs_efi_log_format_64 {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
- xfs_extent_64_t efi_extents[1]; /* array of extents to free */
-} xfs_efi_log_format_64_t;
-
-/*
- * This is the structure used to lay out an efd log item in the
- * log. The efd_extents array is a variable size array whose
- * size is given by efd_nextents;
- */
-typedef struct xfs_efd_log_format {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
- xfs_extent_t efd_extents[1]; /* array of extents freed */
-} xfs_efd_log_format_t;
-
-typedef struct xfs_efd_log_format_32 {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
- xfs_extent_32_t efd_extents[1]; /* array of extents freed */
-} __attribute__((packed)) xfs_efd_log_format_32_t;
-
-typedef struct xfs_efd_log_format_64 {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
- xfs_extent_64_t efd_extents[1]; /* array of extents freed */
-} xfs_efd_log_format_64_t;
-
-
-#ifdef __KERNEL__
+struct xfs_mount;
+struct kmem_zone;

/*
* Max number of extents in fast allocation path.
@@ -160,6 +80,4 @@ int xfs_efi_copy_format(xfs_log_iovec_t *buf,
xfs_efi_log_format_t *dst_efi_fmt);
void xfs_efi_item_free(xfs_efi_log_item_t *);

-#endif /* __KERNEL__ */
-
#endif /* __XFS_EXTFREE_ITEM_H__ */
diff --git a/fs/xfs/xfs_extfree_item_format.h b/fs/xfs/xfs_extfree_item_format.h
new file mode 100644
index 0000000..ddd1fbb
--- /dev/null
+++ b/fs/xfs/xfs_extfree_item_format.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2000,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * 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. See the
+ * GNU General Public License for more details.
+ *
+ * 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
+ */
+#ifndef __XFS_EXTFREE_ITEM_FORMAT_H__
+#define __XFS_EXTFREE_ITEM_FORMAT_H__
+
+typedef struct xfs_extent {
+ xfs_dfsbno_t ext_start;
+ xfs_extlen_t ext_len;
+} xfs_extent_t;
+
+/*
+ * Since an xfs_extent_t has types (start:64, len: 32)
+ * there are different alignments on 32 bit and 64 bit kernels.
+ * So we provide the different variants for use by a
+ * conversion routine.
+ */
+typedef struct xfs_extent_32 {
+ __uint64_t ext_start;
+ __uint32_t ext_len;
+} __attribute__((packed)) xfs_extent_32_t;
+
+typedef struct xfs_extent_64 {
+ __uint64_t ext_start;
+ __uint32_t ext_len;
+ __uint32_t ext_pad;
+} xfs_extent_64_t;
+
+/*
+ * This is the structure used to lay out an efi log item in the
+ * log. The efi_extents field is a variable size array whose
+ * size is given by efi_nextents.
+ */
+typedef struct xfs_efi_log_format {
+ __uint16_t efi_type; /* efi log item type */
+ __uint16_t efi_size; /* size of this item */
+ __uint32_t efi_nextents; /* # extents to free */
+ __uint64_t efi_id; /* efi identifier */
+ xfs_extent_t efi_extents[1]; /* array of extents to free */
+} xfs_efi_log_format_t;
+
+typedef struct xfs_efi_log_format_32 {
+ __uint16_t efi_type; /* efi log item type */
+ __uint16_t efi_size; /* size of this item */
+ __uint32_t efi_nextents; /* # extents to free */
+ __uint64_t efi_id; /* efi identifier */
+ xfs_extent_32_t efi_extents[1]; /* array of extents to free */
+} __attribute__((packed)) xfs_efi_log_format_32_t;
+
+typedef struct xfs_efi_log_format_64 {
+ __uint16_t efi_type; /* efi log item type */
+ __uint16_t efi_size; /* size of this item */
+ __uint32_t efi_nextents; /* # extents to free */
+ __uint64_t efi_id; /* efi identifier */
+ xfs_extent_64_t efi_extents[1]; /* array of extents to free */
+} xfs_efi_log_format_64_t;
+
+/*
+ * This is the structure used to lay out an efd log item in the
+ * log. The efd_extents array is a variable size array whose
+ * size is given by efd_nextents;
+ */
+typedef struct xfs_efd_log_format {
+ __uint16_t efd_type; /* efd log item type */
+ __uint16_t efd_size; /* size of this item */
+ __uint32_t efd_nextents; /* # of extents freed */
+ __uint64_t efd_efi_id; /* id of corresponding efi */
+ xfs_extent_t efd_extents[1]; /* array of extents freed */
+} xfs_efd_log_format_t;
+
+typedef struct xfs_efd_log_format_32 {
+ __uint16_t efd_type; /* efd log item type */
+ __uint16_t efd_size; /* size of this item */
+ __uint32_t efd_nextents; /* # of extents freed */
+ __uint64_t efd_efi_id; /* id of corresponding efi */
+ xfs_extent_32_t efd_extents[1]; /* array of extents freed */
+} __attribute__((packed)) xfs_efd_log_format_32_t;
+
+typedef struct xfs_efd_log_format_64 {
+ __uint16_t efd_type; /* efd log item type */
+ __uint16_t efd_size; /* size of this item */
+ __uint32_t efd_nextents; /* # of extents freed */
+ __uint64_t efd_efi_id; /* id of corresponding efi */
+ xfs_extent_64_t efd_extents[1]; /* array of extents freed */
+} xfs_efd_log_format_64_t;
+
+#endif /* __XFS_EXTFREE_ITEM_FORMAT_H__ */