ocfs2: Free up some space in the lvb
lvb_version doesn't need to be a whole 32 bits. Make it an 8 bit field to free up some space. This should be backwards compatible until we use one of the fields, in which case we'd bump the lvb version anyway. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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@ -1413,7 +1413,7 @@ static void __ocfs2_stuff_meta_lvb(struct inode *inode)
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lvb = (struct ocfs2_meta_lvb *) lockres->l_lksb.lvb;
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lvb->lvb_version = cpu_to_be32(OCFS2_LVB_VERSION);
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lvb->lvb_version = OCFS2_LVB_VERSION;
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lvb->lvb_isize = cpu_to_be64(i_size_read(inode));
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lvb->lvb_iclusters = cpu_to_be32(oi->ip_clusters);
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lvb->lvb_iuid = cpu_to_be32(inode->i_uid);
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@ -1486,7 +1486,7 @@ static inline int ocfs2_meta_lvb_is_trustable(struct ocfs2_lock_res *lockres)
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{
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struct ocfs2_meta_lvb *lvb = (struct ocfs2_meta_lvb *) lockres->l_lksb.lvb;
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if (be32_to_cpu(lvb->lvb_version) == OCFS2_LVB_VERSION)
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if (lvb->lvb_version == OCFS2_LVB_VERSION)
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return 1;
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return 0;
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}
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@ -3167,7 +3167,7 @@ void ocfs2_dump_meta_lvb_info(u64 level,
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mlog(level, "LVB information for %s (called from %s:%u):\n",
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lockres->l_name, function, line);
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mlog(level, "version: %u, clusters: %u\n",
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be32_to_cpu(lvb->lvb_version), be32_to_cpu(lvb->lvb_iclusters));
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lvb->lvb_version, be32_to_cpu(lvb->lvb_iclusters));
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mlog(level, "size: %llu, uid %u, gid %u, mode 0x%x\n",
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(unsigned long long)be64_to_cpu(lvb->lvb_isize),
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be32_to_cpu(lvb->lvb_iuid), be32_to_cpu(lvb->lvb_igid),
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@ -32,7 +32,9 @@
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#define OCFS2_LVB_VERSION 3
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struct ocfs2_meta_lvb {
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__be32 lvb_version;
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__be16 lvb_reserved0;
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__u8 lvb_reserved1;
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__u8 lvb_version;
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__be32 lvb_iclusters;
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__be32 lvb_iuid;
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__be32 lvb_igid;
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