ext4: Convert ext4_extent_idx.ei_leaf to ext4_extent_idx.ei_leaf_lo
Convert ext4_extent_idx.ei_leaf ext4_extent_idx.ei_leaf_lo This helps in finding BUGs due to direct partial access of these split 48 bit values. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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@ -65,7 +65,7 @@ static ext4_fsblk_t idx_pblock(struct ext4_extent_idx *ix)
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{
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ext4_fsblk_t block;
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block = le32_to_cpu(ix->ei_leaf);
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block = le32_to_cpu(ix->ei_leaf_lo);
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block |= ((ext4_fsblk_t) le16_to_cpu(ix->ei_leaf_hi) << 31) << 1;
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return block;
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}
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@ -88,7 +88,7 @@ static void ext4_ext_store_pblock(struct ext4_extent *ex, ext4_fsblk_t pb)
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*/
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static void ext4_idx_store_pblock(struct ext4_extent_idx *ix, ext4_fsblk_t pb)
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{
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ix->ei_leaf = cpu_to_le32((unsigned long) (pb & 0xffffffff));
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ix->ei_leaf_lo = cpu_to_le32((unsigned long) (pb & 0xffffffff));
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ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
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}
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@ -83,7 +83,7 @@ struct ext4_extent {
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*/
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struct ext4_extent_idx {
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__le32 ei_block; /* index covers logical blocks from 'block' */
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__le32 ei_leaf; /* pointer to the physical block of the next *
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__le32 ei_leaf_lo; /* pointer to the physical block of the next *
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* level. leaf or next index could be there */
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__le16 ei_leaf_hi; /* high 16 bits of physical block */
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__u16 ei_unused;
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