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author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-06-18 10:48:04 -0700 |
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committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-07-10 17:32:00 -0700 |
commit | 328d5752e1259dfb29b7e65f6c2d145fddbaa750 (patch) | |
tree | 08198271a0382cafcc4c0de2fc1efcf35cb400af /fs/ocfs2/extent_map.c | |
parent | c3afcbb34426a9291e4c038540129053a72c3cd8 (diff) | |
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ocfs2: btree changes for unwritten extents
Writes to a region marked as unwritten might result in a record split or
merge. We can support splits by making minor changes to the existing insert
code. Merges require left rotations which mostly re-use right rotation
support functions.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/extent_map.c')
-rw-r--r-- | fs/ocfs2/extent_map.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index e23e416..03c1d365 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -373,37 +373,6 @@ out: return ret; } -/* - * Return the index of the extent record which contains cluster #v_cluster. - * -1 is returned if it was not found. - * - * Should work fine on interior and exterior nodes. - */ -static int ocfs2_search_extent_list(struct ocfs2_extent_list *el, - u32 v_cluster) -{ - int ret = -1; - int i; - struct ocfs2_extent_rec *rec; - u32 rec_end, rec_start, clusters; - - for(i = 0; i < le16_to_cpu(el->l_next_free_rec); i++) { - rec = &el->l_recs[i]; - - rec_start = le32_to_cpu(rec->e_cpos); - clusters = ocfs2_rec_clusters(el, rec); - - rec_end = rec_start + clusters; - - if (v_cluster >= rec_start && v_cluster < rec_end) { - ret = i; - break; - } - } - - return ret; -} - int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster, u32 *num_clusters, unsigned int *extent_flags) |