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| author | Tao Ma <tao.ma@oracle.com> | 2008-12-05 01:20:56 +0300 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-01-05 19:40:36 +0300 |
| commit | 90cb546cada68bb8c2278afdb4b65c2ac11f2877 (patch) | |
| tree | 68f70ca93bf16cd20fbb039fa17cd4d3828a7df7 | |
| parent | 4b3f6209bf9eec46fe5ebb168718fef5c443c157 (diff) | |
| download | linux-90cb546cada68bb8c2278afdb4b65c2ac11f2877.tar.xz | |
ocfs2/xattr: fix credits calculation during index create
When creating a xattr index block, the old calculation forget
to add credits for the meta change of the alloc file. So add
more credits and more comments to explain it.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
| -rw-r--r-- | fs/ocfs2/xattr.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 3e2e92d70594..73fb9f762512 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -2359,13 +2359,21 @@ meta_guess: } else xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data; + /* + * If there is already an xattr tree, good, we can calculate + * like other b-trees. Otherwise we may have the chance of + * create a tree, the credit calculation is borrowed from + * ocfs2_calc_extend_credits with root_el = NULL. And the + * new tree will be cluster based, so no meta is needed. + */ if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) { struct ocfs2_extent_list *el = &xb->xb_attrs.xb_root.xt_list; meta_add += ocfs2_extend_meta_needed(el); credits += ocfs2_calc_extend_credits(inode->i_sb, el, 1); - } + } else + credits += OCFS2_SUBALLOC_ALLOC + 1; /* * This cluster will be used either for new bucket or for |