bh_uptodate_or_lock 141 fs/ext2/balloc.c if (likely(bh_uptodate_or_lock(bh))) bh_uptodate_or_lock 156 fs/ext3/balloc.c if (likely(bh_uptodate_or_lock(bh))) bh_uptodate_or_lock 194 include/linux/buffer_head.h int bh_uptodate_or_lock(struct buffer_head *bh);