struct ocfs2_alloc_context *meta_ac,
struct buffer_head **new_bh);
+static struct buffer_head *ocfs2_bread(struct inode *inode,
+ int block, int *err, int reada)
+{
+ struct buffer_head *bh = NULL;
+ int tmperr;
+ u64 p_blkno;
+ int readflags = 0;
+
+ if (reada)
+ readflags |= OCFS2_BH_READAHEAD;
+
+ if (((u64)block << inode->i_sb->s_blocksize_bits) >=
+ i_size_read(inode)) {
+ BUG_ON(!reada);
+ return NULL;
+ }
+
+ down_read(&OCFS2_I(inode)->ip_alloc_sem);
+ tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL,
+ NULL);
+ up_read(&OCFS2_I(inode)->ip_alloc_sem);
+ if (tmperr < 0) {
+ mlog_errno(tmperr);
+ goto fail;
+ }
+
+ tmperr = ocfs2_read_blocks(inode, p_blkno, 1, &bh, readflags);
+ if (tmperr < 0)
+ goto fail;
+
+ tmperr = 0;
+
+ *err = 0;
+ return bh;
+
+fail:
+ brelse(bh);
+ bh = NULL;
+
+ *err = -EIO;
+ return NULL;
+}
+
/*
* bh passed here can be an inode block or a dir data block, depending
* on the inode inline data flag.
struct ocfs2_dinode *di;
struct ocfs2_inline_data *data;
- ret = ocfs2_read_block(OCFS2_SB(dir->i_sb), OCFS2_I(dir)->ip_blkno,
- &di_bh, OCFS2_BH_CACHED, dir);
+ ret = ocfs2_read_block(dir, OCFS2_I(dir)->ip_blkno, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
}
if ((bh = bh_use[ra_ptr++]) == NULL)
goto next;
- wait_on_buffer(bh);
- if (!buffer_uptodate(bh)) {
- /* read error, skip block & hope for the best */
+ if (ocfs2_read_block(dir, block, &bh)) {
+ /* read error, skip block & hope for the best.
+ * ocfs2_read_block() has released the bh. */
ocfs2_error(dir->i_sb, "reading directory %llu, "
"offset %lu\n",
(unsigned long long)OCFS2_I(dir)->ip_blkno,
block);
- brelse(bh);
goto next;
}
i = ocfs2_search_dirblock(bh, dir, name, namelen,
struct ocfs2_dinode *di;
struct ocfs2_inline_data *data;
- ret = ocfs2_read_block(OCFS2_SB(dir->i_sb), OCFS2_I(dir)->ip_blkno,
- &di_bh, OCFS2_BH_CACHED, dir);
+ ret = ocfs2_read_block(dir, OCFS2_I(dir)->ip_blkno, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
struct ocfs2_inline_data *data;
struct ocfs2_dir_entry *de;
- ret = ocfs2_read_block(OCFS2_SB(inode->i_sb), OCFS2_I(inode)->ip_blkno,
- &di_bh, OCFS2_BH_CACHED, inode);
+ ret = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &di_bh);
if (ret) {
mlog(ML_ERROR, "Unable to read inode block for dir %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
for (i = ra_sectors >> (sb->s_blocksize_bits - 9);
i > 0; i--) {
tmp = ocfs2_bread(inode, ++blk, &err, 1);
- if (tmp)
- brelse(tmp);
+ brelse(tmp);
}
last_ra_blk = blk;
ra_sectors = 8;
leave:
if (status < 0) {
*dirent = NULL;
- if (*dirent_bh) {
- brelse(*dirent_bh);
- *dirent_bh = NULL;
- }
+ brelse(*dirent_bh);
+ *dirent_bh = NULL;
}
mlog_exit(status);
ret = 0;
bail:
- if (dirent_bh)
- brelse(dirent_bh);
+ brelse(dirent_bh);
mlog_exit(ret);
return ret;
status = 0;
bail:
- if (new_bh)
- brelse(new_bh);
+ brelse(new_bh);
mlog_exit(status);
return status;
struct buffer_head *dirdata_bh = NULL;
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
handle_t *handle;
+ struct ocfs2_extent_tree et;
+
+ ocfs2_init_dinode_extent_tree(&et, dir, di_bh);
alloc = ocfs2_clusters_for_bytes(sb, bytes);
* This should never fail as our extent list is empty and all
* related blocks have been journaled already.
*/
- ret = ocfs2_insert_extent(osb, handle, dir, di_bh, 0, blkno, len, 0,
- NULL);
+ ret = ocfs2_insert_extent(osb, handle, dir, &et, 0, blkno, len,
+ 0, NULL);
if (ret) {
mlog_errno(ret);
goto out_commit;
}
blkno = ocfs2_clusters_to_blocks(dir->i_sb, bit_off);
- ret = ocfs2_insert_extent(osb, handle, dir, di_bh, 1, blkno,
- len, 0, NULL);
+ ret = ocfs2_insert_extent(osb, handle, dir, &et, 1,
+ blkno, len, 0, NULL);
if (ret) {
mlog_errno(ret);
goto out_commit;
if (extend) {
u32 offset = OCFS2_I(dir)->ip_clusters;
- status = ocfs2_do_extend_allocation(OCFS2_SB(sb), dir, &offset,
- 1, 0, parent_fe_bh, handle,
- data_ac, meta_ac, NULL);
+ status = ocfs2_add_inode_data(OCFS2_SB(sb), dir, &offset,
+ 1, 0, parent_fe_bh, handle,
+ data_ac, meta_ac, NULL);
BUG_ON(status == -EAGAIN);
if (status < 0) {
mlog_errno(status);
int credits, num_free_extents, drop_alloc_sem = 0;
loff_t dir_i_size;
struct ocfs2_dinode *fe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
+ struct ocfs2_extent_list *el = &fe->id2.i_list;
struct ocfs2_alloc_context *data_ac = NULL;
struct ocfs2_alloc_context *meta_ac = NULL;
handle_t *handle = NULL;
struct buffer_head *new_bh = NULL;
struct ocfs2_dir_entry * de;
struct super_block *sb = osb->sb;
+ struct ocfs2_extent_tree et;
mlog_entry_void();
spin_lock(&OCFS2_I(dir)->ip_lock);
if (dir_i_size == ocfs2_clusters_to_bytes(sb, OCFS2_I(dir)->ip_clusters)) {
spin_unlock(&OCFS2_I(dir)->ip_lock);
- num_free_extents = ocfs2_num_free_extents(osb, dir, fe);
+ ocfs2_init_dinode_extent_tree(&et, dir, parent_fe_bh);
+ num_free_extents = ocfs2_num_free_extents(osb, dir, &et);
if (num_free_extents < 0) {
status = num_free_extents;
mlog_errno(status);
}
if (!num_free_extents) {
- status = ocfs2_reserve_new_metadata(osb, fe, &meta_ac);
+ status = ocfs2_reserve_new_metadata(osb, el, &meta_ac);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
goto bail;
}
- credits = ocfs2_calc_extend_credits(sb, fe, 1);
+ credits = ocfs2_calc_extend_credits(sb, el, 1);
} else {
spin_unlock(&OCFS2_I(dir)->ip_lock);
credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
if (meta_ac)
ocfs2_free_alloc_context(meta_ac);
- if (new_bh)
- brelse(new_bh);
+ brelse(new_bh);
mlog_exit(status);
return status;
status = 0;
bail:
- if (bh)
- brelse(bh);
+ brelse(bh);
mlog_exit(status);
return status;
*ret_de_bh = bh;
bh = NULL;
out:
- if (bh)
- brelse(bh);
+ brelse(bh);
return ret;
}