04 Jan, 2006
5 commits
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Currently all network protocols need to call dev_ioctl as the default
fallback in their ioctl implementations. This patch adds a fallback
to dev_ioctl to sock_ioctl if the protocol returned -ENOIOCTLCMD.
This way all the procotol ioctl handlers can be simplified and we don't
need to export dev_ioctl.Signed-off-by: Christoph Hellwig
Signed-off-by: David S. Miller -
From: Benjamin LaHaise
In af_unix, a rwlock is used to protect internal state. At least on my
P4 with HT it is faster to use a spinlock due to the simpler memory
barrier used to unlock. This patch raises bw_unix to ~690K/s.Signed-off-by: David S. Miller
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I noticed that some of 'struct proto_ops' used in the kernel may share
a cache line used by locks or other heavily modified data. (default
linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at
least)This patch makes sure a 'struct proto_ops' can be declared as const,
so that all cpus can share all parts of it without false sharing.This is not mandatory : a driver can still use a read/write structure
if it needs to (and eventually a __read_mostly)I made a global stubstitute to change all existing occurences to make
them const.This should reduce the possibility of false sharing on SMP, and
speedup some socket system calls.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
This lock is actually taken mostly as a writer,
so using a rwlock actually just makes performance
worse especially on chips like the Intel P4.Signed-off-by: David S. Miller
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AF_UNIX stream socket performance on P4 CPUs tends to suffer due to a
lot of pipeline flushes from atomic operations. The patch below
removes the sock_hold() and sock_put() in unix_stream_sendmsg(). This
should be safe as the socket still holds a reference to its peer which
is only released after the file descriptor's final user invokes
unix_release_sock(). The only consideration is that we must add a
memory barrier before setting the peer initially.Signed-off-by: Benjamin LaHaise
Signed-off-by: David S. Miller
09 Nov, 2005
1 commit
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Most permission() calls have a struct nameidata * available. This helper
takes that as an argument and thus makes sure we pass it down for lookup
intents and prepares for per-mount read-only support where we need a struct
vfsmount for checking whether a file is writeable.Signed-off-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
30 Aug, 2005
3 commits
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Of this type, mostly:
CHECK net/ipv6/netfilter.c
net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static?
net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static?Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Lots of places just needs the states, not even linux/tcp.h, where this
enum was, needs it.This speeds up development of the refactorings as less sources are
rebuilt when things get moved from net/tcp.h.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Remove the "list" member of struct sk_buff, as it is entirely
redundant. All SKB list removal callers know which list the
SKB is on, so storing this in sk_buff does nothing other than
taking up some space.Two tricky bits were SCTP, which I took care of, and two ATM
drivers which Francois Romieu fixed
up.Signed-off-by: David S. Miller
Signed-off-by: Francois Romieu
12 Jul, 2005
1 commit
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Move the protocol specific config options out to the specific protocols.
With this change net/Kconfig now starts to become readable and serve as a
good basis for further re-structuring.The menu structure is left almost intact, except that indention is
fixed in most cases. Most visible are the INET changes where several
"depends on INET" are replaced with a single ifdef INET / endif pair.Several new files were created to accomplish this change - they are
small but serve the purpose that config options are now distributed
out where they belongs.Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller
09 Jul, 2005
1 commit
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This is part of the grand scheme to eliminate the qlen
member of skb_queue_head, and subsequently remove the
'list' member of sk_buff.Most users of skb_queue_len() want to know if the queue is
empty or not, and that's trivially done with skb_queue_empty()
which doesn't use the skb_queue_head->qlen member and instead
uses the queue list emptyness as the test.Signed-off-by: David S. Miller
20 May, 2005
1 commit
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currently it opencodes it, but that's in the way of chaning the
lookup_hash interface.I'd prefer to disallow modular af_unix over exporting lookup_create,
but I'll leave that to you.Signed-off-by: Christoph Hellwig
Signed-off-by: David S. Miller
26 Apr, 2005
1 commit
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A lot of places in there are including major.h for no reason whatsoever.
Removed. And yes, it still builds.The history of that stuff is often amusing. E.g. for net/core/sock.c
the story looks so, as far as I've been able to reconstruct it: we used
to need major.h in net/socket.c circa 1.1.early. In 1.1.13 that need
had disappeared, along with register_chrdev(SOCKET_MAJOR, "socket",
&net_fops) in sock_init(). Include had not. When 1.2 -> 1.3 reorg of
net/* had moved a lot of stuff from net/socket.c to net/core/sock.c,
this crap had followed...Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
