net: Unmap fragment page once iterator is done
authorWedson Almeida Filho <wedsonaf@gmail.com>
Mon, 24 Jun 2013 06:33:48 +0000 (23:33 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 24 Jun 2013 08:46:01 +0000 (01:46 -0700)
commitaeb193ea6cef28e33589de05ef932424f8e19bde
tree222421861caac0d53654984cd227c6946c1a4241
parent7e2f934dc52089da5b196714f0c286a8e71396c2
net: Unmap fragment page once iterator is done

Callers of skb_seq_read() are currently forced to call skb_abort_seq_read()
even when consuming all the data because the last call to skb_seq_read (the
one that returns 0 to indicate the end) fails to unmap the last fragment page.

With this patch callers will be allowed to traverse the SKB data by calling
skb_prepare_seq_read() once and repeatedly calling skb_seq_read() as originally
intended (and documented in the original commit 677e90eda), that is, only call
skb_abort_seq_read() if the sequential read is actually aborted.

Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/scsi/libiscsi_tcp.c
net/batman-adv/main.c
net/core/skbuff.c