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authorTao Ma <tao.ma@oracle.com>2008-08-18 17:38:43 +0800
committerMark Fasheh <mfasheh@suse.com>2008-10-13 13:57:58 -0700
commit811f933df1e55615fd0bb4818f31e3868a8e6e23 (patch)
tree53335e59bdff02d7ddb3a2ec15d36239fe50003d /fs/ocfs2/journal.h
parent231b87d10920e024efaf0f9e86e1bab7bced1620 (diff)
downloadlinux-811f933df1e55615fd0bb4818f31e3868a8e6e23.tar.bz2
ocfs2: Use ocfs2_extent_list instead of ocfs2_dinode.
ocfs2_extend_meta_needed(), ocfs2_calc_extend_credits() and ocfs2_reserve_new_metadata() are all useful for extent tree operations. But they are all limited to an inode btree because they use a struct ocfs2_dinode parameter. Change their parameter to struct ocfs2_extent_list (the part of an ocfs2_dinode they actually use) so that the xattr btree code can use these functions. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/journal.h')
-rw-r--r--fs/ocfs2/journal.h17
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 2178ebffa05f..9485f8037d9b 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -340,11 +340,16 @@ int ocfs2_journal_dirty_data(handle_t *handle,
#define OCFS2_RENAME_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 3 \
+ OCFS2_UNLINK_CREDITS)
+/*
+ * Please note that the caller must make sure that root_el is the root
+ * of extent tree. So for an inode, it should be &fe->id2.i_list. Otherwise
+ * the result may be wrong.
+ */
static inline int ocfs2_calc_extend_credits(struct super_block *sb,
- struct ocfs2_dinode *fe,
+ struct ocfs2_extent_list *root_el,
u32 bits_wanted)
{
- int bitmap_blocks, sysfile_bitmap_blocks, dinode_blocks;
+ int bitmap_blocks, sysfile_bitmap_blocks, extent_blocks;
/* bitmap dinode, group desc. + relinked group. */
bitmap_blocks = OCFS2_SUBALLOC_ALLOC;
@@ -355,16 +360,16 @@ static inline int ocfs2_calc_extend_credits(struct super_block *sb,
* however many metadata chunks needed * a remaining suballoc
* alloc. */
sysfile_bitmap_blocks = 1 +
- (OCFS2_SUBALLOC_ALLOC - 1) * ocfs2_extend_meta_needed(fe);
+ (OCFS2_SUBALLOC_ALLOC - 1) * ocfs2_extend_meta_needed(root_el);
/* this does not include *new* metadata blocks, which are
- * accounted for in sysfile_bitmap_blocks. fe +
+ * accounted for in sysfile_bitmap_blocks. root_el +
* prev. last_eb_blk + blocks along edge of tree.
* calc_symlink_credits passes because we just need 1
* credit for the dinode there. */
- dinode_blocks = 1 + 1 + le16_to_cpu(fe->id2.i_list.l_tree_depth);
+ extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth);
- return bitmap_blocks + sysfile_bitmap_blocks + dinode_blocks;
+ return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks;
}
static inline int ocfs2_calc_symlink_credits(struct super_block *sb)