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ocfs2: Support creation of unwritten extents

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This can now be trivially supported with re-use of our existing extend code.

ocfs2_allocate_unwritten_extents() takes a start offset and a byte length
and iterates over the inode, adding extents (marked as unwritten) until len
is reached. Existing extents are skipped over.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh
2007-03-09 16:43:28 -08:00
parent b27b7cbcf1
commit 2ae99a6037
7 changed files with 105 additions and 28 deletions
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2
fs/ocfs2/alloc.c
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@@ -3726,6 +3726,7 @@ int ocfs2_insert_extent(struct ocfs2_super *osb,
u32 cpos,
u64 start_blk,
u32 new_clusters,
u8 flags,
struct ocfs2_alloc_context *meta_ac)
{
int status;
@@ -3749,6 +3750,7 @@ int ocfs2_insert_extent(struct ocfs2_super *osb,
rec.e_cpos = cpu_to_le32(cpos);
rec.e_blkno = cpu_to_le64(start_blk);
rec.e_leaf_clusters = cpu_to_le16(new_clusters);
rec.e_flags = flags;
status = ocfs2_figure_insert_type(inode, fe_bh, &last_eb_bh, &rec,
&insert);