20 Oct, 2007
1 commit
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remove asm/bitops.h includes
including asm/bitops directly may cause compile errors. don't include it
and include linux/bitops instead. next patch will deny including asm header
directly.Cc: Adrian Bunk
Signed-off-by: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Oct, 2007
4 commits
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This concerns the ipv4 and ipv6 code mostly, but also the netlink
and unix sockets.The netlink code is an example of how to use the __seq_open_private()
call - it saves the net namespace on this private.Signed-off-by: Pavel Emelyanov
Signed-off-by: David S. Miller -
This patch makes /proc/net per network namespace. It modifies the global
variables proc_net and proc_net_stat to be per network namespace.
The proc_net file helpers are modified to take a network namespace argument,
and all of their callers are fixed to pass &init_net for that argument.
This ensures that all of the /proc/net files are only visible and
usable in the initial network namespace until the code behind them
has been updated to be handle multiple network namespaces.Making /proc/net per namespace is necessary as at least some files
in /proc/net depend upon the set of network devices which is per
network namespace, and even more files in /proc/net have contents
that are relevant to a single network namespace.Signed-off-by: Eric W. Biederman
Signed-off-by: David S. Miller -
This patch converts the messy macro for MASK_PFX to inline function
and expands TKEY_GET_MASK in the one place it is used.Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Try this out:
* replace macro's with inlines
* get rid of places doing multiple evaluations of NODE_PARENT[akpm@linux-foundation.org: rcu_dereference wants an lval]
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller
20 Jul, 2007
1 commit
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Slab destructors were no longer supported after Christoph's
c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
BUGs for both slab and slub, and slob never supported them
either.This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).Signed-off-by: Paul Mundt
25 May, 2007
1 commit
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When you replace route via ip r r command the netlink multicast message is
not send. This patch corrects it. NL message is sent with NLM_F_REPLACE
flag.Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8320
Signed-off-by: Milan Kocian
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller
26 Apr, 2007
4 commits
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The threshold for root node can be more aggressive set to get
better tree compression. The new setting mekes the root grow
from 16 to 19 bits and substansial improvemnt in Aver depth
this with the current table of 214393 prefixesBut really the dynamic resize should need more investigation
both in terms convergence and performance and maybe it should
be possible to change...Maybe just for the brave to start with or we may have to back
this out. -
The patch below adds break condition for the resize operations. If
we don't achieve the desired fill factor a warning is printed. Trie
should still be operational but new thresholds should be considered.Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller -
The seq_file operations stuff can be marked constant to
get it out of dirty cache.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Add whitespace around keywords.
Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller
27 Mar, 2007
1 commit
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Paul E. McKenney writes:
> Those of use who dive into networking only occasionally would much
> appreciate this. ;-)No problem here...
Acked-by: Robert Olsson
Signed-off-by: Paul E. McKenney (but trivial)
Signed-off-by: David S. Miller
17 Mar, 2007
1 commit
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Hello, Just discussed this Patrick...
We have two users of trie_leaf_remove, fn_trie_flush and fn_trie_delete
both are holding RTNL. So there shouldn't be need for this preempt stuff.
This is assumed to a leftover from an older RCU-take.> Mhh .. I think I just remembered something - me incorrectly suggesting
> to add it there while we were talking about this at OLS :) IIRC the
> idea was to make sure tnode_free (which at that time didn't use
> call_rcu) wouldn't free memory while still in use in a rcu read-side
> critical section. It should have been synchronize_rcu of course,
> but with tnode_free using call_rcu it seems to be completely
> unnecessary. So I guess we can simply remove it.Signed-off-by: Robert Olsson
Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller
15 Feb, 2007
1 commit
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After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there. Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm. I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).Signed-off-by: Tim Schmielau
Acked-by: Russell King
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
13 Feb, 2007
1 commit
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Many struct file_operations in the kernel can be "const". Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data. In addition it'll catch accidental writes at compile time to
these shared resources.Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Feb, 2007
1 commit
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Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller
27 Jan, 2007
1 commit
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When main table is just a single leaf this gets printed as belonging to the
local table in /proc/net/fib_trie. A fix is below.Signed-off-by: Robert Olsson
Acked-by: Eric W. Biederman
Signed-off-by: David S. Miller
25 Jan, 2007
1 commit
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In a kernel with trie routing enabled I had a simple routing setup
with only a single route to the outside world and no default
route. "ip route table list main" showed my the route just fine but
/proc/net/route was an empty file. What was going on?Thinking it was a bug in something I did and I looked deeper. Eventually
I setup a second route and everything looked correct, huh? Finally I
realized that the it was just the iterator pair in fib_trie_get_first,
fib_trie_get_next just could not handle a routing table with a single entry.So to save myself and others further confusion, here is a simple fix for
the fib proc iterator so it works even when there is only a single route
in a routing table.Signed-off-by: Eric W. Biederman
Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
08 Dec, 2006
2 commits
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Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_KERNEL is an alias of GFP_KERNEL.
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Sep, 2006
1 commit
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Signed-off-by: Al Viro
Signed-off-by: David S. Miller
23 Sep, 2006
4 commits
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Signed-off-by: Thomas Graf
Signed-off-by: David S. Miller -
Introduces struct fib_config replacing the ugly struct kern_rta
prone to ordering issues. Avoids creating faked netlink messages
for auto generated routes or requests via ioctl.A new interface net/nexthop.h is added to help navigate through
nexthop configuration arrays.A new struct nl_info will be used to carry the necessary netlink
information to be used for notifications later on.Signed-off-by: Thomas Graf
Signed-off-by: David S. Miller -
Increase the number of possible routing tables to 2^32 by replacing the
fixed sized array of pointers by a hash table and replacing iterations
over all possible table IDs by hash table walking.Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller -
Use u32 for routing table IDs in net/ipv4 and net/decnet in preparation of
support for a larger number of routing tables. net/ipv6 already uses u32
everywhere and needs no further changes. No functional changes are made by
this patch.Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller
20 Sep, 2006
1 commit
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fib_trie.c::check_leaf() passes host-endian where fib_semantic_match()
expects (and stores into) net-endian.Signed-off-by: Al Viro
Signed-off-by: David S. Miller
13 Jul, 2006
1 commit
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The error handling around fib_insert_node was broken because we always
zeroed the error before checking it.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller
01 Jul, 2006
1 commit
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Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
10 Apr, 2006
1 commit
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Seems like leaf (end-nodes) has been freed by __tnode_free_rcu and not
by __leaf_free_rcu. This fixes the problem. Only tnode_free is now
used which checks for appropriate node type. free_leaf can be removed.Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
21 Mar, 2006
2 commits
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fib_triestats has been buggy and caused oopses some platforms as
openwrt. The patch below should cure those problems.Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller -
In some kernel configs /proc functions seems to be accessed before the
trie is initialized. The patch below checks for this.Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
04 Jan, 2006
2 commits
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Need this to fix build of fib_trie in net-2.6.16 (rebased) tree.
The code needs the new inet_make_mask inline.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
21 Nov, 2005
1 commit
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Don't show local table to behave similar to fib_hash.
Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller
26 Oct, 2005
1 commit
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This patch kills a redundant rcu_dereference on fa->fa_info in fib_trie.c.
As this dereference directly follows a list_for_each_entry_rcu line, we
have already taken a read barrier with respect to getting an entry from
the list.This read barrier guarantees that all values read out of fa are valid.
In particular, the contents of structure pointed to by fa->fa_info is
initialised before fa->fa_info is actually set (see fn_trie_insert);
the setting of fa->fa_info itself is further separated with a write
barrier from the insertion of fa into the list.Therefore by taking a read barrier after obtaining fa from the list
(which is given by list_for_each_entry_rcu), we can be sure that
fa->fa_info contains a valid pointer, as well as the fact that the
data pointed to by fa->fa_info is itself valid.Signed-off-by: Herbert Xu
Acked-by: Paul E. McKenney
Signed-off-by: David S. Miller
Signed-off-by: Arnaldo Carvalho de Melo
05 Oct, 2005
1 commit
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The patch below introduces special thresholds to keep root node in the trie
large. This gives a flatter tree at the cost of a modest memory increase.
Overall it seems to be gain and this was also proposed by one the authors
of the paper in recent a seminar.Main table after loading 123 k routes.
Aver depth: 3.30
Max depth: 9
Root-node size 12 bits
Total size: 4044 kBWith the patch:
Aver depth: 2.78
Max depth: 8
Root-node size 15 bits
Total size: 4150 kBAn increase of 8-10% was seen in forwading performance for an rDoS attack.
Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
21 Sep, 2005
1 commit
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Cleanup the printk's in fib_trie:
* Convert a couple of places in the dump code to BUG_ON
* Put log level's on each message
The version message really needed the message since it leaks out
on the pretty Fedora bootup.Signed-off-by: Stephen Hemminger
Acked-by: Robert Olsson ,
Signed-off-by: David S. Miller
20 Sep, 2005
2 commits
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* This patch is from Paul McKenney's RCU reviewing.
Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller -
* Prints the route tnode and set the stats level deepth as before.
Signed-off-by: Robert Olsson
Signed-off-by: David S. Miller
10 Sep, 2005
1 commit
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Create one iterator for walking over FIB trie, and use it
for all the /proc functions. Add a /proc/net/route
output for backwards compatibility with old applications.Make initialization of fib_trie same as fib_hash so no #ifdef
is needed in af_inet.cFixes: http://bugzilla.kernel.org/show_bug.cgi?id=5209
Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller