https://github.com/torvalds/linux
Revision 8d609725d4357f499e2103e46011308b32f53513 authored by Seth Forshee on 26 November 2014, 02:28:24 UTC, committed by David S. Miller on 03 December 2014, 03:24:13 UTC
These BUGs can be erroneously triggered by frags which refer to
tail pages within a compound page. The data in these pages may
overrun the hardware page while still being contained within the
compound page, but since compound_order() evaluates to 0 for tail
pages the assertion fails. The code already iterates through
subsequent pages correctly in this scenario, so the BUGs are
unnecessary and can be removed.

Fixes: f36c374782e4 ("xen/netfront: handle compound page fragments on transmit")
Cc: <stable@vger.kernel.org> # 3.7+
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 7fa2955
History
Tip revision: 8d609725d4357f499e2103e46011308b32f53513 authored by Seth Forshee on 26 November 2014, 02:28:24 UTC
xen-netfront: Remove BUGs on paged skb data which crosses a page boundary
Tip revision: 8d60972
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arch
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include
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net
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usr
virt
.gitignore -rw-r--r-- 1.1 KB
.mailmap -rw-r--r-- 4.7 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 93.8 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 285.4 KB
Makefile -rw-r--r-- 53.2 KB
README -rw-r--r-- 18.3 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

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