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-rw-r--r--fs/ocfs2/suballoc.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index 1a3c94cb9250..7bc4819db4db 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -86,6 +86,12 @@ int ocfs2_claim_clusters(struct ocfs2_super *osb,
86 u32 *cluster_start, 86 u32 *cluster_start,
87 u32 *num_clusters); 87 u32 *num_clusters);
88 88
89int ocfs2_free_suballoc_bits(handle_t *handle,
90 struct inode *alloc_inode,
91 struct buffer_head *alloc_bh,
92 unsigned int start_bit,
93 u64 bg_blkno,
94 unsigned int count);
89int ocfs2_free_dinode(handle_t *handle, 95int ocfs2_free_dinode(handle_t *handle,
90 struct inode *inode_alloc_inode, 96 struct inode *inode_alloc_inode,
91 struct buffer_head *inode_alloc_bh, 97 struct buffer_head *inode_alloc_bh,
@@ -100,6 +106,13 @@ int ocfs2_free_clusters(handle_t *handle,
100 u64 start_blk, 106 u64 start_blk,
101 unsigned int num_clusters); 107 unsigned int num_clusters);
102 108
109static inline u64 ocfs2_which_suballoc_group(u64 block, unsigned int bit)
110{
111 u64 group = block - (u64) bit;
112
113 return group;
114}
115
103static inline u32 ocfs2_cluster_from_desc(struct ocfs2_super *osb, 116static inline u32 ocfs2_cluster_from_desc(struct ocfs2_super *osb,
104 u64 bg_blkno) 117 u64 bg_blkno)
105{ 118{