[XFS] inode items and EFI/EFDs have different ondisk format for 32bit and
64bit kernels allow recovery to handle both versions and do the necessary
decoding
SGI-PV: 952214
SGI-Modid: xfs-linux-melb:xfs-kern:26011a
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index c5dbf93..5db6cd1 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -23,25 +23,6 @@
* log. The size of the inline data/extents/b-tree root to be logged
* (if any) is indicated in the ilf_dsize field. Changes to this structure
* must be added on to the end.
- *
- * Convention for naming inode log item versions : The current version
- * is always named XFS_LI_INODE. When an inode log item gets superseded,
- * add the latest version of IRIX that will generate logs with that item
- * to the version name.
- *
- * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
- * union (ilf_u) field. This was released with IRIX 5.3-XFS.
- * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
- * structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1.
- * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
- * so a new structure definition wasn't necessary. However, we had
- * to add a new type because the inode cluster size changed from 4K
- * to 8K and the version number had to be rev'ved to keep older kernels
- * from trying to recover logs with the 8K buffers in them. The logging
- * code can handle recovery on different-sized clusters now so hopefully
- * this'll be the last time we need to change the inode log item just
- * for a change in the inode cluster size. This new version was
- * released with IRIX 6.2.
*/
typedef struct xfs_inode_log_format {
unsigned short ilf_type; /* inode log item type */
@@ -59,18 +40,38 @@
int ilf_boffset; /* off of inode in buffer */
} xfs_inode_log_format_t;
-/* Initial version shipped with IRIX 5.3-XFS */
-typedef struct xfs_inode_log_format_v1 {
- unsigned short ilf_type; /* inode log item type */
- unsigned short ilf_size; /* size of this item */
- uint ilf_fields; /* flags for fields logged */
- uint ilf_dsize; /* size of data/ext/root */
- xfs_ino_t ilf_ino; /* inode number */
+typedef struct xfs_inode_log_format_32 {
+ unsigned short ilf_type; /* 16: inode log item type */
+ unsigned short ilf_size; /* 16: size of this item */
+ uint ilf_fields; /* 32: flags for fields logged */
+ ushort ilf_asize; /* 32: size of attr d/ext/root */
+ ushort ilf_dsize; /* 32: size of data/ext/root */
+ xfs_ino_t ilf_ino; /* 64: inode number */
union {
- xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
- uuid_t ilfu_uuid; /* mount point value */
+ xfs_dev_t ilfu_rdev; /* 32: rdev value for dev inode*/
+ uuid_t ilfu_uuid; /* 128: mount point value */
} ilf_u;
-} xfs_inode_log_format_t_v1;
+ __int64_t ilf_blkno; /* 64: blkno of inode buffer */
+ int ilf_len; /* 32: len of inode buffer */
+ int ilf_boffset; /* 32: off of inode in buffer */
+} __attribute__((packed)) xfs_inode_log_format_32_t;
+
+typedef struct xfs_inode_log_format_64 {
+ unsigned short ilf_type; /* 16: inode log item type */
+ unsigned short ilf_size; /* 16: size of this item */
+ uint ilf_fields; /* 32: flags for fields logged */
+ ushort ilf_asize; /* 32: size of attr d/ext/root */
+ ushort ilf_dsize; /* 32: size of data/ext/root */
+ __uint32_t ilf_pad; /* 32: pad for 64 bit boundary */
+ xfs_ino_t ilf_ino; /* 64: inode number */
+ union {
+ xfs_dev_t ilfu_rdev; /* 32: rdev value for dev inode*/
+ uuid_t ilfu_uuid; /* 128: mount point value */
+ } ilf_u;
+ __int64_t ilf_blkno; /* 64: blkno of inode buffer */
+ int ilf_len; /* 32: len of inode buffer */
+ int ilf_boffset; /* 32: off of inode in buffer */
+} xfs_inode_log_format_64_t;
/*
* Flags for xfs_trans_log_inode flags field.
@@ -172,6 +173,8 @@
extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_iflush_abort(struct xfs_inode *);
+extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
+ xfs_inode_log_format_t *);
#endif /* __KERNEL__ */