if (this_bh) {
BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, this_bh);
+
+ /*
+ * The buffer head should have an attached journal head at this
+ * point. However, if the data is corrupted and an indirect
+ * block pointed to itself, it would have been detached when
+ * the block was cleared. Check for this instead of OOPSing.
+ */
+ if (bh2jh(this_bh))
+ ext3_journal_dirty_metadata(handle, this_bh);
+ else
+ ext3_error(inode->i_sb, "ext3_free_data",
+ "circular indirect block detected, "
+ "inode=%lu, block=%llu",
+ inode->i_ino,
+ (unsigned long long)this_bh->b_blocknr);
}
}
}
if (!buffer_uptodate(bh)) {
lock_buffer(bh);
+
+ /*
+ * If the buffer has the write error flag, we have failed
+ * to write out another inode in the same block. In this
+ * case, we don't have to read the block because we may
+ * read the old inode data successfully.
+ */
+ if (buffer_write_io_error(bh) && !buffer_uptodate(bh))
+ set_buffer_uptodate(bh);
+
if (buffer_uptodate(bh)) {
/* someone brought it uptodate while we waited */
unlock_buffer(bh);