linux.git/net/llc, branch v2.6.16

[NET]: Add a dev_ioctl() fallback to sock_ioctl()

2006-01-03T22:18:33+00:00

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

[NET]: move struct proto_ops to const

2006-01-03T21:11:15+00:00

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

[NET]: Avoid atomic xchg() for non-error case

2006-01-03T21:10:44+00:00

It also looks like there were 2 places where the test on sk_err was
missing from the event wait logic (in sk_stream_wait_connect and
sk_stream_wait_memory), while the rest of the sock_error() users look
to be doing the right thing.  This version of the patch fixes those,
and cleans up a few places that were testing ->sk_err directly.

Signed-off-by: Benjamin LaHaise 
Signed-off-by: David S. Miller

[LLC]: Fix compiler warnings introduced by TX window scaling changes.

2005-11-17T23:17:42+00:00

Noticed by Olaf Hering.

The comparisons want a u8 here (the data type on the left-hand branch
is a u8 structure member, and the constant on the right-hand branch is
"~((u8) 128)"), but C turns it into an integer so we get:

net/llc/llc_c_ac.c: In function `llc_conn_ac_inc_npta_value':
net/llc/llc_c_ac.c:998: warning: comparison is always true due to limited range of data type
net/llc/llc_c_ac.c:999: warning: large integer implicitly truncated to unsigned type

Fix this up by explicitly recasting the right-hand branch constant
into a "u8" once more.

Signed-off-by: David S. Miller

[LLC]: Make core block on remote busy.

2005-11-15T05:57:46+00:00

Signed-off-by: Jochen Friedrich 
Acked-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[LLC]: Fix TX window scaling

2005-11-15T05:57:15+00:00

Signed-off-by: Jochen Friedrich 
Acked-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[PATCH] gfp flags annotations - part 1

2005-10-08T22:00:57+00:00

 - added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[LLC]: fix llc_ui_recvmsg, making it behave like tcp_recvmsg

2005-09-22T11:29:08+00:00

In fact it is an exact copy of the parts that makes sense to LLC :-)

Signed-off-by: Arnaldo Carvalho de Melo

[LLC]: Fix the accept path

2005-09-22T10:57:21+00:00

Borrowing the structure of TCP/IP for this. On the receive of new connections I
was bh_lock_socking the _new_ sock, not the listening one, duh, now it survives
the ssh connections storm I've been using to test this specific bug.

Also fixes send side skb sock accounting.

Signed-off-by: Arnaldo Carvalho de Melo

[LLC]: Fix sparse warnings

2005-09-22T08:14:33+00:00

Signed-off-by: Arnaldo Carvalho de Melo