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);