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ocfs2: convert inode refcount test to a helper
Replace the open-coded inode refcount flag test with a helper function to reduce the potential for bugs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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@ -5713,8 +5713,7 @@ int ocfs2_remove_btree_range(struct inode *inode,
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struct ocfs2_refcount_tree *ref_tree = NULL;
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if ((flags & OCFS2_EXT_REFCOUNTED) && len) {
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BUG_ON(!(OCFS2_I(inode)->ip_dyn_features &
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OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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if (!refcount_tree_locked) {
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ret = ocfs2_lock_refcount_tree(osb, refcount_loc, 1,
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@ -1030,7 +1030,7 @@ int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
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* Only quota files call this without a bh, and they can't be
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* refcounted.
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*/
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BUG_ON(!di_bh && (oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!di_bh && ocfs2_is_refcount_inode(inode));
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BUG_ON(!di_bh && !(oi->ip_flags & OCFS2_INODE_SYSTEM_FILE));
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clusters_to_add = ocfs2_clusters_for_bytes(inode->i_sb, new_i_size);
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@ -1719,8 +1719,7 @@ static int ocfs2_remove_inode_range(struct inode *inode,
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* within one cluster(means is not exactly aligned to clustersize).
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*/
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if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) {
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if (ocfs2_is_refcount_inode(inode)) {
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ret = ocfs2_cow_file_pos(inode, di_bh, byte_start);
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if (ret) {
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mlog_errno(ret);
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@ -2036,7 +2035,7 @@ int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
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struct super_block *sb = inode->i_sb;
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if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)) ||
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!(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) ||
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!ocfs2_is_refcount_inode(inode) ||
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OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
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return 0;
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@ -181,4 +181,10 @@ static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_
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return container_of(ci, struct ocfs2_inode_info, ip_metadata_cache);
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}
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/* Does this inode have the reflink flag set? */
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static inline bool ocfs2_is_refcount_inode(struct inode *inode)
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{
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return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
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}
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#endif /* OCFS2_INODE_H */
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@ -235,10 +235,7 @@ static int ocfs2_defrag_extent(struct ocfs2_move_extents_context *context,
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u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
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if ((ext_flags & OCFS2_EXT_REFCOUNTED) && *len) {
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BUG_ON(!(OCFS2_I(inode)->ip_dyn_features &
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OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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BUG_ON(!context->refcount_loc);
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ret = ocfs2_lock_refcount_tree(osb, context->refcount_loc, 1,
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@ -581,10 +578,7 @@ static int ocfs2_move_extent(struct ocfs2_move_extents_context *context,
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phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
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if ((ext_flags & OCFS2_EXT_REFCOUNTED) && len) {
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BUG_ON(!(OCFS2_I(inode)->ip_dyn_features &
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OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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BUG_ON(!context->refcount_loc);
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ret = ocfs2_lock_refcount_tree(osb, context->refcount_loc, 1,
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@ -410,7 +410,7 @@ static int ocfs2_get_refcount_block(struct inode *inode, u64 *ref_blkno)
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goto out;
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}
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BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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di = (struct ocfs2_dinode *)di_bh->b_data;
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*ref_blkno = le64_to_cpu(di->i_refcount_loc);
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@ -570,7 +570,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
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u32 num_got;
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u64 suballoc_loc, first_blkno;
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BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
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BUG_ON(ocfs2_is_refcount_inode(inode));
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trace_ocfs2_create_refcount_tree(
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(unsigned long long)OCFS2_I(inode)->ip_blkno);
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@ -708,7 +708,7 @@ static int ocfs2_set_refcount_tree(struct inode *inode,
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struct ocfs2_refcount_block *rb;
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struct ocfs2_refcount_tree *ref_tree;
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BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
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BUG_ON(ocfs2_is_refcount_inode(inode));
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ret = ocfs2_lock_refcount_tree(osb, refcount_loc, 1,
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&ref_tree, &ref_root_bh);
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@ -775,7 +775,7 @@ int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh)
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u64 blk = 0, bg_blkno = 0, ref_blkno = le64_to_cpu(di->i_refcount_loc);
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u16 bit = 0;
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if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL))
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if (!ocfs2_is_refcount_inode(inode))
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return 0;
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BUG_ON(!ref_blkno);
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@ -2299,11 +2299,10 @@ int ocfs2_decrease_refcount(struct inode *inode,
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{
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int ret;
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u64 ref_blkno;
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struct ocfs2_inode_info *oi = OCFS2_I(inode);
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struct buffer_head *ref_root_bh = NULL;
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struct ocfs2_refcount_tree *tree;
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BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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ret = ocfs2_get_refcount_block(inode, &ref_blkno);
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if (ret) {
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@ -2533,7 +2532,6 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
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int *ref_blocks)
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{
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int ret;
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struct ocfs2_inode_info *oi = OCFS2_I(inode);
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struct buffer_head *ref_root_bh = NULL;
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struct ocfs2_refcount_tree *tree;
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u64 start_cpos = ocfs2_blocks_to_clusters(inode->i_sb, phys_blkno);
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@ -2544,7 +2542,7 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
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goto out;
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}
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BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb),
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refcount_loc, &tree);
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@ -3412,14 +3410,13 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode,
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{
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int ret;
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u32 cow_start = 0, cow_len = 0;
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struct ocfs2_inode_info *oi = OCFS2_I(inode);
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
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struct buffer_head *ref_root_bh = NULL;
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struct ocfs2_refcount_tree *ref_tree;
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struct ocfs2_cow_context *context = NULL;
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BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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ret = ocfs2_refcount_cal_cow_clusters(inode, &di->id2.i_list,
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cpos, write_len, max_cpos,
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@ -3629,11 +3626,10 @@ int ocfs2_refcount_cow_xattr(struct inode *inode,
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{
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int ret;
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struct ocfs2_xattr_value_root *xv = vb->vb_xv;
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struct ocfs2_inode_info *oi = OCFS2_I(inode);
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struct ocfs2_cow_context *context = NULL;
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u32 cow_start, cow_len;
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BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
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BUG_ON(!ocfs2_is_refcount_inode(inode));
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ret = ocfs2_refcount_cal_cow_clusters(inode, &xv->xr_list,
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cpos, write_len, UINT_MAX,
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@ -3807,7 +3803,7 @@ static int ocfs2_attach_refcount_tree(struct inode *inode,
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ocfs2_init_dealloc_ctxt(&dealloc);
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if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)) {
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if (!ocfs2_is_refcount_inode(inode)) {
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ret = ocfs2_create_refcount_tree(inode, di_bh);
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if (ret) {
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mlog_errno(ret);
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@ -2577,7 +2577,7 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh)
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if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL))
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return 0;
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if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) {
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if (ocfs2_is_refcount_inode(inode)) {
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ret = ocfs2_lock_refcount_tree(OCFS2_SB(inode->i_sb),
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le64_to_cpu(di->i_refcount_loc),
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1, &ref_tree, &ref_root_bh);
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@ -3608,7 +3608,7 @@ int ocfs2_xattr_set(struct inode *inode,
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}
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/* Check whether the value is refcounted and do some preparation. */
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if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL &&
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if (ocfs2_is_refcount_inode(inode) &&
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(!xis.not_found || !xbs.not_found)) {
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ret = ocfs2_prepare_refcount_xattr(inode, di, &xi,
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&xis, &xbs, &ref_tree,
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