* need to use BH_New is when we're extending i_size on a file
* system which doesn't support holes, in which case BH_New
* allows block_prepare_write() to zero.
+ *
+ * If we see this on a sparse file system, then a truncate has
+ * raced us and removed the cluster. In this case, we clear
+ * the buffers dirty and uptodate bits and let the buffer code
+ * ignore it as a hole.
*/
- mlog_bug_on_msg(create && p_blkno == 0 && ocfs2_sparse_alloc(osb),
- "ino %lu, iblock %llu\n", inode->i_ino,
- (unsigned long long)iblock);
+ if (create && p_blkno == 0 && ocfs2_sparse_alloc(osb)) {
+ clear_buffer_dirty(bh_result);
+ clear_buffer_uptodate(bh_result);
+ goto bail;
+ }
/* Treat the unwritten extent as a hole for zeroing purposes. */
if (p_blkno && !(ext_flags & OCFS2_EXT_UNWRITTEN))
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
BUG_ON(!PageLocked(page));
- BUG_ON(!OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL);
+ BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL));
ret = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno, &di_bh,
OCFS2_BH_CACHED, inode);
unsigned to)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- handle_t *handle = NULL;
+ handle_t *handle;
int ret = 0;
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
- if (!handle) {
+ if (IS_ERR(handle)) {
ret = -ENOMEM;
mlog_errno(ret);
goto out;
}
out:
if (ret) {
- if (handle)
+ if (!IS_ERR(handle))
ocfs2_commit_trans(osb, handle);
handle = ERR_PTR(ret);
}