Eric Dumazet b28ba72665 IPoIB: fix skb truesize underestimatiom ... Or Gerlitz reported triggering of WARN_ON_ONCE(delta < len); in skb_try_coalesce() This warning tracks drivers that incorrectly set skb->truesize IPoIB indeed allocates a full page to store a fragment, but only accounts in skb->truesize the used part of the page (frame length) This patch fixes skb truesize underestimation, and also fixes a performance issue, because RX skbs have not enough tailroom to allow IP and TCP stacks to pull their header in skb linear part without an expensive call to pskb_expand_head() Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Cc: Erez Shitrit <erezsh@mellanox.com> Cc: Shlomo Pongartz <shlomop@mellanox.com> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-07-10 23:33:12 -07:00
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ipoib	IPoIB: fix skb truesize underestimatiom	2012-07-10 23:33:12 -07:00
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srp
srpt	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2012-05-21 17:37:09 -07:00