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authorDavid Woodhouse <dwmw2@infradead.org>2007-04-27 19:16:19 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2007-04-27 19:16:19 +0100
commitd1da4e50e5d09f02c340927a4fcb7f54202fa033 (patch)
tree7f98317bdd45dbdb7644e9179891c5af6a3a8ef1 /fs/ocfs2/extent_map.h
parent78ab67da1002d954ea4c3e2b441e2483c41f94e8 (diff)
parenta205752d1ad2d37d6597aaae5a56fc396a770868 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/mtd/Kconfig Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/ocfs2/extent_map.h')
-rw-r--r--fs/ocfs2/extent_map.h39
1 files changed, 23 insertions, 16 deletions
diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index fa3745efa88..de91e3e41a2 100644
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -25,22 +25,29 @@
#ifndef _EXTENT_MAP_H
#define _EXTENT_MAP_H
-int init_ocfs2_extent_maps(void);
-void exit_ocfs2_extent_maps(void);
+struct ocfs2_extent_map_item {
+ unsigned int ei_cpos;
+ unsigned int ei_phys;
+ unsigned int ei_clusters;
+ unsigned int ei_flags;
-/*
- * EVERY CALL here except _init, _trunc, and _drop expects alloc_sem
- * to be held. The allocation cannot change at all while the map is
- * in the process of being updated.
- */
-int ocfs2_extent_map_init(struct inode *inode);
-int ocfs2_extent_map_append(struct inode *inode,
- struct ocfs2_extent_rec *rec,
- u32 new_clusters);
-int ocfs2_extent_map_get_blocks(struct inode *inode,
- u64 v_blkno, int count,
- u64 *p_blkno, int *ret_count);
-int ocfs2_extent_map_drop(struct inode *inode, u32 new_clusters);
-int ocfs2_extent_map_trunc(struct inode *inode, u32 new_clusters);
+ struct list_head ei_list;
+};
+
+#define OCFS2_MAX_EXTENT_MAP_ITEMS 3
+struct ocfs2_extent_map {
+ unsigned int em_num_items;
+ struct list_head em_list;
+};
+
+void ocfs2_extent_map_init(struct inode *inode);
+void ocfs2_extent_map_trunc(struct inode *inode, unsigned int cluster);
+void ocfs2_extent_map_insert_rec(struct inode *inode,
+ struct ocfs2_extent_rec *rec);
+
+int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster,
+ u32 *num_clusters, unsigned int *extent_flags);
+int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno,
+ u64 *ret_count, unsigned int *extent_flags);
#endif /* _EXTENT_MAP_H */