taglinefilesource code
b_prev276fs/buffer.cbh->b_next->b_prev = bh->b_prev;
b_prev277fs/buffer.cif (bh->b_prev)
b_prev278fs/buffer.cbh->b_prev->b_next = bh->b_next;
b_prev281fs/buffer.cbh->b_next = bh->b_prev = NULL;
b_prev397fs/buffer.cbh->b_prev = NULL;
b_prev404fs/buffer.cbh->b_next->b_prev = bh;
b_prev147include/linux/fs.hstruct buffer_head * b_prev;    /* doubly linked list of hash-queue */