Use it to release protocol specific objects that may be
tied to a dst cache object, at ifdown time.  Currently
this is used to release ipv4/ipv6 specific device state.

into nuts.davemloft.net:/disk1/BK/net-2.6

Will be used by the poor cousins, starting with LLC.
Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>

Later patches will make other protocols use sk_wait_data and further generalisations
of tcp code will use sk_wait_event.

This is again to abstract away more stuff from poor network family writers, like
the SOCK_ASYNC_WAITDATA, etc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>

into nuts.davemloft.net:/disk1/BK/net-2.6

It was already generic, so reflect this in the naming.

Later patches will make it be used in other network families.

into nuts.davemloft.net:/disk1/BK/net-2.6

Signed-off-by: Shirley Ma <mashirle@us.ibm.com>
Signed-off-by: David S. Miller <davem@redhat.com>

When creating dst entry from ndisc, the dst entry of pmtu is not set, and the 
outout for this kind of dst entry is set to ip_output2 instead of ip_output. 
This could lead to send bigger packets through these des entries without 
fragmentation, and uninitialized pmtu could lead the network unreachable. 

These problems are easy reproduced when configuring IPSEC for ipv6. IPSEC 
could pick up dst entry created by ndisc as child des entry if ndisc dst 
entry generated earlier. If sending bigger packets through IPSEC, the ip 
output2 will send bigger packets out, the driver will drop these packets on 
receiver side. Also the dst_entry pmtu will be 0, the network is unreachable.

The patch has been tested against 2.6.6. I am not sure why ndisc genereats dst 
entry with output equal to ip6_output2 not ip6_output. If ndisc sends bigger 
packets, it will break also.
Signed-off-by: Shirley Ma <mashirle@us.ibm.com>
Signed-off-by: David S. Miller <davem@redhat.com>

Below is the patch, against 2.6.7-rc2, to fix crypto/digest.c to do
multiple kmap()/kunmap() for scatterlist entries which have a size
greater than a single page, originally found and fixed by
N.C.Krishna Murthy <krmurthy@cisco.com>.
Signed-off-by: Clay Haapala <chaapala@cisco.com>
Signed-off-by: David S. Miller <davem@redhat.com>

1) Make window clamp follow receive buffer growth so it
   does not limit window advertisements.  Noticed by John
   Heffner and Stephen Hemminger.
2) Fix rcvmem calculation such that tcp_adv_win_scale is
   taken into account.

This makes the best practices already in place in bluetooth
and tcp/ip available for all protocols, i.e. references must
be managed when associating timers with struct sock instances,
also makes the code a bit more clean.
Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>

into nuts.davemloft.net:/disk1/BK/net-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into nuts.davemloft.net:/disk1/BK/net-2.6

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@redhat.com>

into nuts.davemloft.net:/disk1/BK/sparc-2.6

dup_mmap() unnecessarily tries to account for memory of the vma's it has
created if it fails in the middle.

However, that's pointless (and wrong), since the exit_mmap() path called
through mmput() will do so anyway in the failure path.

Just remove the bogus un-accounting code.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Add __user annotations to kernel/sysctl.c to satisfy sparse
for !CONFIG_SYSCTL, !CONFIG_PROC_FS.
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

It puts two 2kB temp areas on the stack, which is
guaranteed to overflow a 4kB stack if that path
is ever taken.

Both marked in the source, and both should be easy
to fix but need testing.

Found by Jörn Engel.

From: Herbert Xu <herbert@gondor.apana.org.au>

The recent change to vga16fb's memory mapping that you partially reverted
is still broken.  In particular, it's setting fix.mem_start to a virtual
address on i386.  The value of fix.mem_start is meant to be physical.

We could simply apply virt_to_phys to it, but somehow I doubt that is what
it's meant to do on arm.  So until we hear from someone who knows how it
works on arm, let's just revert this change.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Randy Dunlap <rddunlap@osdl.org> points out that sparse warns about the test
of an undefined preprocessor identifier.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Andy Whitcroft <apw@shadowen.org>

The sysctl interfaces for updating the uts entries such as hostname and
domainname are using the wrong length for these buffers; they are hard
coded to 64.  Although safe, this artifically limits the size of these
fields to one less than the true maximum.  This generates an inconsistency
between the various methods of update for these fields.

# hostname 12345678901234567890123456789012345678901234567890123456789012345
hostname: name too long
# hostname 1234567890123456789012345678901234567890123456789012345678901234
# hostname
1234567890123456789012345678901234567890123456789012345678901234

# sysctl -w kernel.hostname=1234567890123456789012345678901234567890123456789012345678901234567890
kernel.hostname = 1234567890123456789012345678901234567890123456789012345678901234567890
# hostname
123456789012345678901234567890123456789012345678901234567890123
#

The error originates from the fact the handler for strings (proc_dostring)
already allows for the string terminator.  This patch corrects the limit,
taking the oppotunity to convert to use of sizeof().
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: john stultz <johnstul@us.ibm.com>

In testing for SLES9, we ran across a bug caused by userspace apps poking
the PIT which caused bad values to be read by the kernel.  This would then
trigger the lost tick detection code with insane values and would then
break the SCSI subsystem.

This patch includes the PIT sanity check from the TSC timesource into the
cyclone timesource code, which catches the bad case described above and
resolves the issue.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: "Anil" <anil.s.keshavamurthy@intel.com>

We don't need lock_cpu_hotplug()/unlock_cpu_hotplug for singlethreaded
workqueues.
Signed-off-by: Anil Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Martin Schwidefsky <schwidefsky@de.ibm.com>

This patch adds support for 6 system call arguments on s390.  The first
exploiter of this will be the sys_futex system call for the
FUTEX_CMP_REQUEUE operation.  The idea is simple: use register %r7 for the
6th argument.  This can be extended to 7/8/9/...  arguments if there ever
will be the need for it.  To call the system call function in the kernel
the additional arguments needs to get stored on the stack.  8 bytes are
added to the head of struct pt_regs.  %r7 is stored to the additional field
for all system calls.  The store is hidden in a
address-generation-interlock slot, it doesn't slow down the system call
path.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Jens Axboe <axboe@suse.de>

cdrom_has_defect_mgt() has the same ->data_len bug - the length field is
not total length, but the length following that field.  So it should be +
4, not + 8.  However, just kill the length check.  Comparison of
feature_code provides enough check.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: NeilBrown <neilb@cse.unsw.edu.au>

This condtion on this loop is primarily to avoid the loop if it doesn't
appear to be needed.  However it optimises a little too much and there is a
case where it skips the loop when it is really needed.  This patch fixes
it.

This is the raid6 version of the recent raid5 resync bugfix.
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>

Recent syscall stubs cleanup broke alpha, as it has its own version of
sys_rt_sigaction().  This defines __ARCH_WANT_SYS_RT_SIGACTION for all
architectures except alpha, sparc and sparc64.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Andi Kleen <ak@suse.de>

UDF spews out lots of debugging information by default.  Disable that,
since it doesn't make too much sense for a production kernel.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Andi Kleen <ak@suse.de>

This printk is printed by genericarch when your machine is no es7000.  Most
people don't care about that.  Remove it.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Francois Romieu <romieu@fr.zoreil.com>

- just say no to numbered labels;
- pci_enable_device can fail so setup_pci_dev() must return a value;
- propagate existing error codes when possible in do_pci_device()
- missing pci_disable_device here and there. 
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Peter Korsgaard <jacmet@sunsite.dk>

Vertical retrace is in lines, not pixels.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

We need to take journal_lock_updates() while remounting r/o to prevent a new
transaction starting while journal_flush() is running.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>