kernel.git/net/ipv6/route.c, branch linux-2.6.36.y

net: Fix IPv6 PMTU disc. w/ asymmetric routes

2010-10-03T21:49:00Z

Signed-off-by: Maciej Żenczykowski Signed-off-by: David S. Miller

ipv6: add IPv6 to neighbour table overflow warning

2010-09-27T22:02:18Z

IPv4 and IPv6 have separate neighbour tables, so the warning messages should be distinguishable. [ Add a suitable message prefix on the ipv4 side as well -DaveM ] Signed-off-by: Ulrich Weber Signed-off-by: David S. Miller

ipv6: remove sysctl jiffies conversion on gc_elasticity and min_adv_mss

2010-08-15T05:42:51Z

sysctl output ipv6 gc_elasticity and min_adv_mss as values divided by HZ. However, they are not in unit of jiffies, since ip6_rt_min_advmss refers to packet size and ip6_rt_fc_elasticity is used as scaler as in expire>>ip6_rt_gc_elasticity, so replace the jiffies conversion handler will regular handler for them. This has impact on scripts that are currently working assuming the divide by HZ, will yield different results with this patch in place. Signed-off-by: Min Zhang Signed-off-by: David S. Miller

ipv6: RCU changes in ipv6_get_mtu() and ip6_dst_hoplimit()

2010-06-15T06:13:07Z

Use RCU to avoid atomic ops on idev refcnt in ipv6_get_mtu() and ip6_dst_hoplimit() Signed-off-by: Eric Dumazet Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller

net-next: remove useless union keyword

2010-06-11T06:31:35Z

remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

IPv6: fix Mobile IPv6 regression

2010-05-29T06:02:35Z

Commit f4f914b5 (net: ipv6 bind to device issue) caused a regression with Mobile IPv6 when it changed the meaning of fl->oif to become a strict requirement of the route lookup. Instead, only force strict mode when sk->sk_bound_dev_if is set on the calling socket, getting the intended behavior and fixing the regression. Tested-by: Arnaud Ebalard Signed-off-by: Brian Haley Signed-off-by: David S. Miller

net: Remove unnecessary returns from void function()s

2010-05-18T06:23:14Z

This patch removes from net/ (but not any netfilter files) all the unnecessary return; statements that precede the last closing brace of void functions. It does not remove the returns that are immediately preceded by a label as gcc doesn't like that. Done via: $ grep -rP --include=*.[ch] -l "return;\n}" net/ | \ xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }' Signed-off-by: Joe Perches Signed-off-by: David S. Miller

net: ipv6 bind to device issue

2010-04-22T05:59:24Z

The issue raises when having 2 NICs both assigned the same IPv6 global address. If a sender binds to a particular NIC (SO_BINDTODEVICE), the outgoing traffic is being sent via the first found. The bonded device is thus not taken into an account during the routing. From the ip6_route_output function: If the binding address is multicast, linklocal or loopback, the RT6_LOOKUP_F_IFACE bit is set, but not for global address. So binding global address will neglect SO_BINDTODEVICE-binded device, because the fib6_rule_lookup function path won't check for the flowi::oif field and take first route that fits. Signed-off-by: Jiri Olsa Signed-off-by: Scott Otto Signed-off-by: David S. Miller

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

ipv6: Don't drop cache route entry unless timer actually expired.

2010-03-29T02:34:26Z

This is ipv6 variant of the commit 5e016cbf6.. ("ipv4: Don't drop redirected route cache entry unless PTMU actually expired") by Guenter Roeck . Remove cache route entry in ipv6_negative_advice() only if the timer is expired. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller