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| author | Tao Ma <tao.ma@oracle.com> | 2008-08-18 11:38:43 +0200 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 22:57:58 +0200 |
| commit | 811f933df1e55615fd0bb4818f31e3868a8e6e23 (patch) | |
| tree | 53335e59bdff02d7ddb3a2ec15d36239fe50003d /fs/ocfs2/journal.h | |
| parent | ocfs2: Modify ocfs2_num_free_extents for future xattr usage. (diff) | |
| download | linux-811f933df1e55615fd0bb4818f31e3868a8e6e23.tar.xz linux-811f933df1e55615fd0bb4818f31e3868a8e6e23.zip | |
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.h | 17 |
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) |