X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Focfs2%2Fsuballoc.h;h=8799033bb459d9adc4b558d0e50c1b4a52562b61;hb=197cd65accc6a274dabcd81f4811ba5d9a4856df;hp=c787838d1052474d335b2754c88cf0a1d68f06c1;hpb=23e735bc7b0e1d614656881794257b4224efda3a;p=linux-2.6

diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index c787838d10..8799033bb4 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -43,7 +43,6 @@ struct ocfs2_alloc_context {
 #define OCFS2_AC_USE_INODE 3
 #define OCFS2_AC_USE_META  4
 	u32    ac_which;
-	struct ocfs2_journal_handle *ac_handle;
 
 	/* these are used by the chain search */
 	u16    ac_chain;
@@ -60,50 +59,67 @@ static inline int ocfs2_alloc_context_bits_left(struct ocfs2_alloc_context *ac)
 }
 
 int ocfs2_reserve_new_metadata(struct ocfs2_super *osb,
-			       struct ocfs2_journal_handle *handle,
 			       struct ocfs2_dinode *fe,
 			       struct ocfs2_alloc_context **ac);
 int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
-			    struct ocfs2_journal_handle *handle,
 			    struct ocfs2_alloc_context **ac);
 int ocfs2_reserve_clusters(struct ocfs2_super *osb,
-			   struct ocfs2_journal_handle *handle,
 			   u32 bits_wanted,
 			   struct ocfs2_alloc_context **ac);
 
 int ocfs2_claim_metadata(struct ocfs2_super *osb,
-			 struct ocfs2_journal_handle *handle,
+			 handle_t *handle,
 			 struct ocfs2_alloc_context *ac,
 			 u32 bits_wanted,
 			 u16 *suballoc_bit_start,
 			 u32 *num_bits,
 			 u64 *blkno_start);
 int ocfs2_claim_new_inode(struct ocfs2_super *osb,
-			  struct ocfs2_journal_handle *handle,
+			  handle_t *handle,
 			  struct ocfs2_alloc_context *ac,
 			  u16 *suballoc_bit,
 			  u64 *fe_blkno);
 int ocfs2_claim_clusters(struct ocfs2_super *osb,
-			 struct ocfs2_journal_handle *handle,
+			 handle_t *handle,
 			 struct ocfs2_alloc_context *ac,
 			 u32 min_clusters,
 			 u32 *cluster_start,
 			 u32 *num_clusters);
+/*
+ * Use this variant of ocfs2_claim_clusters to specify a maxiumum
+ * number of clusters smaller than the allocation reserved.
+ */
+int __ocfs2_claim_clusters(struct ocfs2_super *osb,
+			   handle_t *handle,
+			   struct ocfs2_alloc_context *ac,
+			   u32 min_clusters,
+			   u32 max_clusters,
+			   u32 *cluster_start,
+			   u32 *num_clusters);
 
-int ocfs2_free_dinode(struct ocfs2_journal_handle *handle,
+int ocfs2_free_suballoc_bits(handle_t *handle,
+			     struct inode *alloc_inode,
+			     struct buffer_head *alloc_bh,
+			     unsigned int start_bit,
+			     u64 bg_blkno,
+			     unsigned int count);
+int ocfs2_free_dinode(handle_t *handle,
 		      struct inode *inode_alloc_inode,
 		      struct buffer_head *inode_alloc_bh,
 		      struct ocfs2_dinode *di);
-int ocfs2_free_extent_block(struct ocfs2_journal_handle *handle,
-			    struct inode *eb_alloc_inode,
-			    struct buffer_head *eb_alloc_bh,
-			    struct ocfs2_extent_block *eb);
-int ocfs2_free_clusters(struct ocfs2_journal_handle *handle,
+int ocfs2_free_clusters(handle_t *handle,
 			struct inode *bitmap_inode,
 			struct buffer_head *bitmap_bh,
 			u64 start_blk,
 			unsigned int num_clusters);
 
+static inline u64 ocfs2_which_suballoc_group(u64 block, unsigned int bit)
+{
+	u64 group = block - (u64) bit;
+
+	return group;
+}
+
 static inline u32 ocfs2_cluster_from_desc(struct ocfs2_super *osb,
 					  u64 bg_blkno)
 {
@@ -131,4 +147,12 @@ static inline int ocfs2_is_cluster_bitmap(struct inode *inode)
 int ocfs2_reserve_cluster_bitmap_bits(struct ocfs2_super *osb,
 				      struct ocfs2_alloc_context *ac);
 
+/* given a cluster offset, calculate which block group it belongs to
+ * and return that block offset. */
+u64 ocfs2_which_cluster_group(struct inode *inode, u32 cluster);
+
+/* somewhat more expensive than our other checks, so use sparingly. */
+int ocfs2_check_group_descriptor(struct super_block *sb,
+				 struct ocfs2_dinode *di,
+				 struct ocfs2_group_desc *gd);
 #endif /* _CHAINALLOC_H_ */