Commit Graph

2297 Commits

Author SHA1 Message Date
Andrew Morton
d96c4e7bb0 [PATCH] x86: hw_irq.h warning fix
include/asm/hw_irq.h:70: warning: `struct hw_interrupt_type' declared inside parameter list
include/asm/hw_irq.h:70: warning: its scope is only this definition or declaration, which is probably not what you want

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-30 12:41:17 -07:00
Zach Brown
897f15fb58 [PATCH] aio: remove unlocked task_list test and resulting race
Only one of the run or kick path is supposed to put an iocb on the run
list.  If both of them do it than one of them can end up referencing a
freed iocb.  The kick path could delete the task_list item from the wait
queue before getting the ctx_lock and putting the iocb on the run list.
The run path was testing the task_list item outside the lock so that it
could catch ki_retry methods that return -EIOCBRETRY *without* putting the
iocb on a wait queue and promising to call kick_iocb.  This unlocked check
could then race with the kick path to cause both to try and put the iocb on
the run list.

The patch stops the run path from testing task_list by requring that any
ki_retry that returns -EIOCBRETRY *must* guarantee that kick_iocb() will be
called in the future.  aio_p{read,write}, the only in-tree -EIOCBRETRY
users, are updated.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-30 12:41:17 -07:00
Kirill Korotaev
1294b118cb [PATCH] x86_64: Add missing () around arguments of pte_index macro
x86-64: Add missing () around arguments of pte_index macro

Signed-Off-By: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-Off-By: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-30 08:54:38 -07:00
Linus Torvalds
c4a7c77fcb Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2005-09-30 08:43:13 -07:00
Al Viro
a3ca066efb [PATCH] missing qualifiers in readb() et.al. on ppc
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-30 08:42:24 -07:00
Al Viro
4735885701 [PATCH] uml get_user() NULL noise removal
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-30 08:42:24 -07:00
Linus Torvalds
1dd465cac8 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-09-30 08:39:56 -07:00
David S. Miller
4cb29d1812 [SPARC64]: Kill arch/sparc64/prom/memory.c
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-29 18:05:28 -07:00
David S. Miller
13edad7a5c [SPARC64]: Rewrite convoluted physical memory probing.
Delete all of the code working with sp_banks[] and replace
with clean acquisition and sorting of physical memory
parameters from the firmware.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-29 17:58:26 -07:00
Daniel Jacobowitz
dce79affd5 [ARM] 2941/1: Fix running legacy binaries from a soft-float root filesystem with CONFIG_IWMMXT.
Patch from Daniel Jacobowitz

Thread flags are inherited on fork().  In order for a binary which has
the iWMMXt coprocessor enabled to run a binary which needs the FPA
emulation, we need to explicitly clear TIF_USING_IWMMXT if we are not
going to set it.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-30 00:17:35 +01:00
Andi Kleen
7d318d7747 [PATCH] Fix up TLB flush filter disabling
I checked with AMD and they requested to only disable it for family 15.
Also disable it for i386 too. And some style fixes.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 15:41:42 -07:00
Linus Torvalds
4a8342d233 Revert task flag re-ordering, add comments
Roland points out that the flags end up having non-obvious dependencies
elsewhere, so revert aa55a08687 and add
some comments about why things are as they are.

We'll just have to fix up the broken comparisons. Roland has a patch.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 15:18:21 -07:00
Oleg Nesterov
aa55a08687 [PATCH] fix TASK_STOPPED vs TASK_NONINTERACTIVE interaction
do_signal_stop:

	for_each_thread(t) {
		if (t->state < TASK_STOPPED)
			++sig->group_stop_count;
	}

However, TASK_NONINTERACTIVE > TASK_STOPPED, so this loop will not
count TASK_INTERRUPTIBLE | TASK_NONINTERACTIVE threads.

See also wait_task_stopped(), which checks ->state > TASK_STOPPED.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>

[ We really probably should always use the appropriate bitmasks to test
  task states, not do it like this. Using something like

	#define TASK_RUNNABLE (TASK_RUNNING | TASK_INTERRUPTIBLE | \
				TASK_UNINTERRUPTIBLE | TASK_NONINTERACTIVE)

  and then doing "if (task->state & TASK_RUNNABLE)" or similar. But the
  ordering of the task states is historical, and keeping the ordering
  does make sense regardless. ]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 09:05:52 -07:00
Linus Torvalds
eb693d2994 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-09-29 08:56:47 -07:00
Linus Torvalds
6dec3cf5cd Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2005-09-29 08:55:43 -07:00
Al Viro
a7625d6e49 [PATCH] mv64x60 iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:27 -07:00
Al Viro
ea8a918eb7 [PATCH] ppc64 get_user annotations
long is not uintptr_t, unsigned long is.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:27 -07:00
Al Viro
c28144763a [PATCH] s390 signal annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:27 -07:00
Al Viro
0cc13a5442 [PATCH] ia64 basic __user annotations
- document places where we pass kernel address to low-level primitive
   that deals with kernel/user addresses
 - uintptr_t is unsigned long, not long

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:27 -07:00
Al Viro
272cd2b71d [PATCH] arm/rpc iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:26 -07:00
Al Viro
2ad4f86b60 [PATCH] arm/versatile iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-29 08:46:26 -07:00
David S. Miller
10147570f9 [SPARC64]: Kill all external references to sp_banks[]
Thus, we can mark sp_banks[] static in arch/sparc64/mm/init.c

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 21:46:43 -07:00
David S. Miller
801ab3c731 [SPARC]: Declare paging_init() in asm/pgtable.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 21:31:25 -07:00
David S. Miller
efdc1e2083 [SPARC64]: Simplify user fault fixup handling.
Instead of doing byte-at-a-time user accesses to figure
out where the fault occurred, read the saved fault_address
from the current thread structure.

For the sake of defensive programming, if the fault_address
does not fall into the user buffer range, simply assume the
whole area faulted.  This will cause the fixup for
copy_from_user() to clear the entire kernel side buffer.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 21:06:47 -07:00
David S. Miller
5fd29752f0 [SPARC64]: Fix fault handling in unaligned trap handler.
We were not calling kernel_mna_trap_fault() correctly.
Instead of being fancy, just return 0 vs. -EFAULT from
the assembler stubs, and handle that return value as
appropriate.

Create an "__retl_efault" stub for assembler exception
table entries and use it where possible.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 20:41:45 -07:00
David S. Miller
8cf14af0a7 [SPARC64]: Convert to use generic exception table support.
The funny "range" exception table entries we had were only
used by the compat layer socketcall assembly, and it wasn't
even needed there.

For free we now get proper exception table sorting and fast
binary searching.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 20:21:11 -07:00
David Howells
664cceb009 [PATCH] Keys: Add possessor permissions to keys [try #3]
The attached patch adds extra permission grants to keys for the possessor of a
key in addition to the owner, group and other permissions bits. This makes
SUID binaries easier to support without going as far as labelling keys and key
targets using the LSM facilities.

This patch adds a second "pointer type" to key structures (struct key_ref *)
that can have the bottom bit of the address set to indicate the possession of
a key. This is propagated through searches from the keyring to the discovered
key. It has been made a separate type so that the compiler can spot attempts
to dereference a potentially incorrect pointer.

The "possession" attribute can't be attached to a key structure directly as
it's not an intrinsic property of a key.

Pointers to keys have been replaced with struct key_ref *'s wherever
possession information needs to be passed through.

This does assume that the bottom bit of the pointer will always be zero on
return from kmem_cache_alloc().

The key reference type has been made into a typedef so that at least it can be
located in the sources, even though it's basically a pointer to an undefined
type. I've also renamed the accessor functions to be more useful, and all
reference variables should now end in "_ref".

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 09:10:47 -07:00
Linus Torvalds
2dd3c1df95 Merge branch 'for-linus' from master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2005-09-28 07:47:55 -07:00
Benjamin Herrenschmidt
0f9578b70a [PATCH] ppc64: More hugepage fixes
My previous patch fixing invalidation of huge PTEs wasn't good enough, we
still had an issue if a PTE invalidation batch contained both small and
large pages.  This patch fixes this by making sure the batch is flushed if
the page size fed to it changes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:42 -07:00
Nick Piggin
8b1f312461 [PATCH] mm: move_pte to remap ZERO_PAGE
Move the ZERO_PAGE remapping complexity to the move_pte macro in
asm-generic, have it conditionally depend on
__HAVE_ARCH_MULTIPLE_ZERO_PAGE, which gets defined for MIPS.

For architectures without __HAVE_ARCH_MULTIPLE_ZERO_PAGE, move_pte becomes
a noop.

From: Hugh Dickins <hugh@veritas.com>

Fix nasty little bug we've missed in Nick's mremap move ZERO_PAGE patch.
The "pte" at that point may be a swap entry or a pte_file entry: we must
check pte_present before perhaps corrupting such an entry.

Patch below against 2.6.14-rc2-mm1, but the same bug is in 2.6.14-rc2's
mm/mremap.c, and more dangerous there since it's affecting all arches: I
think the safest course is to send Nick's patch and Yoichi's build fix and
this fix (build tested) on to Linus - so only MIPS can be affected.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:40 -07:00
David S. Miller
d2212bc7db [SPARC64]: Add missing IDs for newer cpus.
Also, the us3_cpufreq driver can work on Ultra-IV and IV+.
They use the SAFARI bus register to control the clock divider
just like Ultra-III and III+ do.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-27 22:50:06 -07:00
David S. Miller
f16af555cc [SPARC64]: Add defines for 32MB/256MB PTE page size on Ultra-IV+.
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-27 22:37:08 -07:00
Ben Dooks
2fab35d78f [NET]: Fix GCC4 compile error: sysctl in linux/if_ether.h
The following is generated when compiling a
recent (2.6.14-rc2-git5) kernel configured for
ARM, with GCC4. 

  CC      init/main.o
In file included from include/linux/netdevice.h:29,
                 from include/net/sock.h:48,
                 from init/main.c:50:
include/linux/if_ether.h:114: error: array type has incomplete element type

It seems that if CONFIG_SYSCTL is not set, then
the compiler will throw an error due to the definition
of the ether_table[] array

Attached is a solution to the problem

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-27 15:59:43 -07:00
David S. Miller
1f26dac320 [NET]: Add Sun Cassini driver.
Written by Adrian Sun (asun@darksunrising.com).
Ported to 2.6.x by Tom 'spot' Callaway <tcallawa@redhat.com>.
Further cleaned up and integrated by David S. Miller

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-27 15:24:13 -07:00
Eric Dumazet
9356b8fc07 [NET]: Reorder some hot fields of struct net_device
Place them on separate cache lines in SMP to lower memory bouncing
between multiple CPU accessing the device.

     - One part is mostly used on receive path (including
       eth_type_trans()) (poll_list, poll, quota, weight, last_rx,
       dev_addr, broadcast)

     - One part is mostly used on queue transmit path (qdisc)
      (queue_lock, qdisc, qdisc_sleeping, qdisc_list, tx_queue_len)

     - One part is mostly used on xmit path (device)
      (xmit_lock, xmit_lock_owner, priv, hard_start_xmit, trans_start)

'features' is placed outside of these hot points, in a location that
may be shared by all cpus (because mostly read)

name_hlist is moved close to name[IFNAMSIZ] to speedup __dev_get_by_name()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-27 15:23:16 -07:00
Linus Torvalds
95001ee925 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2005-09-27 13:33:25 -07:00
Linus Torvalds
5c1f4cac6f Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-09-26 18:33:26 -07:00
Linus Torvalds
c6a519d2aa Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-09-26 18:32:48 -07:00
Linus Torvalds
bf0cbb3e42 Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6 2005-09-26 18:31:36 -07:00
Al Viro
a880948b2b [PATCH] m32r: more basic __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-26 18:29:50 -07:00
Al Viro
24558a0f7a [PATCH] m32r: missing __iomem in ioremap() declaration
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-26 18:29:50 -07:00
David S. Miller
56e9b26324 Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/llc-2.6 2005-09-26 15:29:31 -07:00
Harald Welte
188bab3ae0 [NETFILTER]: Fix invalid module autoloading by splitting iptable_nat
When you've enabled conntrack and NAT as a module (standard case in all
distributions), and you've also enabled the new conntrack netlink
interface, loading ip_conntrack_netlink.ko will auto-load iptable_nat.ko.
This causes a huge performance penalty, since for every packet you iterate
the nat code, even if you don't want it.

This patch splits iptable_nat.ko into the NAT core (ip_nat.ko) and the
iptables frontend (iptable_nat.ko).  Threfore, ip_conntrack_netlink.ko will
only pull ip_nat.ko, but not the frontend.  ip_nat.ko will "only" allocate
some resources, but not affect runtime performance.

This separation is also a nice step in anticipation of new packet filters
(nf-hipac, ipset, pkttables) being able to use the NAT core.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-26 15:25:11 -07:00
Evgeniy Polyakov
acd042bb2d [CONNECTOR]: async connector mode.
If input message rate from userspace is too high, do not drop them,
but try to deliver using work queue allocation.

Failing there is some kind of congestion control.

It also removes warn_on on this condition, which scares people.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-26 15:06:50 -07:00
Roland Dreier
63c47c286d [IB] uverbs: Close some exploitable races
Al Viro pointed out that the current IB userspace verbs interface
allows userspace to cause mischief by closing file descriptors before
we're ready, or issuing the same command twice at the same time.  This
patch closes those races, and fixes other obvious problems such as a
module reference leak.

Some other interface bogosities will require an ABI change to fix
properly, so I'm deferring those fixes until 2.6.15.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-26 13:01:03 -07:00
Russell King
cbf8fd9f5a [ARM] Remove SA_IRQNOMASK
SA_IRQNOMASK is unused, remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-26 15:30:20 +01:00
Kars de Jong
4fb7edce52 [PATCH] pcmcia: fix cross-platform issues with pcmcia module aliases
- Added a missing TO_NATIVE call to scripts/mod/file2alias.c:do_pcmcia_entry()
- Add an alignment attribute to struct pcmcia_device_no to solve an alignment
  issue seen when cross-compiling on x86 for m68k.

Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:13:58 +02:00
Daniel Ritz
6c1a10dba9 [PATCH] yenta: add support for more TI bridges
Support some more TI cardbus bridges.  most of them are multifunction
devices which adds 1394 controllers, smartcard readers etc.  this could
also help with the various problems with the XX21 controllers seen on the
linux-pcmcia list.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:11:27 +02:00
Daniel Ritz
8c3520d4eb [PATCH] yenta: auto-tune EnE bridges for CardBus cards
Echo Audio cardbus products are known to be incompatible with EnE bridges.
in order to maybe solve the problem a EnE specific test bit has to be set,
another cleared...but other setups have a good chance to break when just
forcing the bits.  so do the whole thingy automatically.

The patch adds a hook in cb_alloc() that allows special tuning for the
different chipsets.  for ene just match the Echo products and set/clear the
test bits, defaults to do the same thing as w/o the patch to not break
working setups.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:09:20 +02:00
David S. Miller
80dc0d6b44 [SPARC64]: Probe D/I/E-cache config and use.
At boot time, determine the D-cache, I-cache and E-cache size and
line-size.  Use them in cache flushes when appropriate.

This change was motivated by discovering that the D-cache on
UltraSparc-IIIi and later are 64K not 32K, and the flushes done by the
Cheetah error handlers were assuming a 32K size.

There are still some pieces of code that are hard coding things and
will need to be fixed up at some point.

While we're here, fix the D-cache and I-cache parity error handlers
to run with interrupts disabled, and when the trap occurs at trap
level > 1 log the event via a counter displayed in /proc/cpuinfo.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-26 00:32:17 -07:00