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authorTim Shimmin <tes@sgi.com>2006-06-09 14:55:38 +1000
committerNathan Scott <nathans@sgi.com>2006-06-09 14:55:38 +1000
commit6d192a9b82212abf1e0e89da6e3a952afba7e4d6 (patch)
tree608a463ba4fd04f518558ead3567952e757cd2ae /fs/xfs/xfs_inode_item.c
parentd210a28cd851082cec9b282443f8cc0e6fc09830 (diff)
[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>
Diffstat (limited to 'fs/xfs/xfs_inode_item.c')
-rw-r--r--fs/xfs/xfs_inode_item.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 7497a481b2f..cd65a565b4f 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -1084,3 +1084,52 @@ xfs_istale_done(
{
xfs_iflush_abort(iip->ili_inode);
}
+
+/*
+ * convert an xfs_inode_log_format struct from either 32 or 64 bit versions
+ * (which can have different field alignments) to the native version
+ */
+int
+xfs_inode_item_format_convert(
+ xfs_log_iovec_t *buf,
+ xfs_inode_log_format_t *in_f)
+{
+ if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
+ xfs_inode_log_format_32_t *in_f32;
+
+ in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr;
+ in_f->ilf_type = in_f32->ilf_type;
+ in_f->ilf_size = in_f32->ilf_size;
+ in_f->ilf_fields = in_f32->ilf_fields;
+ in_f->ilf_asize = in_f32->ilf_asize;
+ in_f->ilf_dsize = in_f32->ilf_dsize;
+ in_f->ilf_ino = in_f32->ilf_ino;
+ /* copy biggest field of ilf_u */
+ memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
+ in_f32->ilf_u.ilfu_uuid.__u_bits,
+ sizeof(uuid_t));
+ in_f->ilf_blkno = in_f32->ilf_blkno;
+ in_f->ilf_len = in_f32->ilf_len;
+ in_f->ilf_boffset = in_f32->ilf_boffset;
+ return 0;
+ } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
+ xfs_inode_log_format_64_t *in_f64;
+
+ in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr;
+ in_f->ilf_type = in_f64->ilf_type;
+ in_f->ilf_size = in_f64->ilf_size;
+ in_f->ilf_fields = in_f64->ilf_fields;
+ in_f->ilf_asize = in_f64->ilf_asize;
+ in_f->ilf_dsize = in_f64->ilf_dsize;
+ in_f->ilf_ino = in_f64->ilf_ino;
+ /* copy biggest field of ilf_u */
+ memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
+ in_f64->ilf_u.ilfu_uuid.__u_bits,
+ sizeof(uuid_t));
+ in_f->ilf_blkno = in_f64->ilf_blkno;
+ in_f->ilf_len = in_f64->ilf_len;
+ in_f->ilf_boffset = in_f64->ilf_boffset;
+ return 0;
+ }
+ return EFSCORRUPTED;
+}