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On some systems, libc PAGE_SIZE calls getpagesize, which can't happen from a
stub. So, I use UM_KERN_PAGE_SIZE, which is less variable in its definition,
instead.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch makes stub_segv use the stub_syscall macros. This was needed
anyway, but the bug that prompted this was the discovery that gcc was storing
stuff in RCX, which is trashed across a system call. This is exactly the sort
of problem that the new macros fix.
There is a stub_syscall0 for getpid. stub_segv was changed to be a libc file,
and that caused some include changes.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This gives a name to the anonymous union introduced in skas-hold-own-ldt,
allowing to build on a wider range of gccs.
It also removes ldt.h, which somehow became real, and replaces it with a
symlink, and creates ldt-x86_64.h as a copy of ldt-i386.h for now.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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We have a bug in the i386 stub_syscall6 which pushes ebp before the system
call and pops it afterwards. Because we use syscall6 to remap the stack, the
old contents of the stack (and the former value of ebp) are no longer
available. Some versions of gcc make from a real local, accessed through ebp,
despite my efforts to make it obvious that references to from are really
constants. This patch attempts to make it even more obvious by eliminating
from and using a macro to access the stub's data explicitly with constants.
My original thinking on this was to replace syscall6 with a remap_stack
interface which saved ebp someplace and restored it afterwards. The problem
is that there are no registers to put it in, except for esp. That could work,
since we can store a constant in esp after the mmap because we just replaced
the stack. However, this approach seems a tad cleaner.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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drivers/net/dgrs.c: In function `dgrs_init_module':
drivers/net/dgrs.c:1598: `dgrs_pci_driver' undeclared (first use in this function)
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/scjody/ieee1394
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Fixes an oops in sbp2util_find_command_for_SCpnt after sbp2scsi_abort:
https://bugzilla.novell.com/show_bug.cgi?id=113734
Signed-off-by: Jody McIntyre <scjody@steamballoon.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
(cherry picked from 7945619794314414a5c44df11fca4d3f2a3389cf commit)
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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core.c:263: warning: initialization makes integer from pointer without a cast
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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assabet.c:291: warning: 'scr' may be used uninitialized in this function
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Since the defintion of NODES_SHIFT may be overridden in asm/arch/memory.h
it's important to include asm/memory.h into asm/numnodes.h to ensure
that the correct value is always defined.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Kenneth Tan
To add queue manager region size which is missing from ixp4xx-regs.h
Signed-off-by: Kenneth Tan <chong.yin.tan@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Dirk Opfer
Fix an error in tosa.c after the platform device conversion.
Signed-off-by: Dirk Opfer <Dirk@Opfer-Online.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
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The nasid_index was not being incremented if the
pointer was null, causing an infinite loop.
Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Add support for old versions of the SN PROMs. Eventually this
support will be deleted but it is useful right now to continue
supporting older PROMs.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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The kernel's use of the for_each_*cpu(i) macros has allowed for sparse CPU
numbering. When I hacked the kernel to test sparse cpu_present_map[] and
cpu_possible_map[] cpumasks, I discovered one remaining spot, in
sn_hwperf_ioctl() during sn initialization, that needs to be fixed.
Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Dean Roe <roe@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Patch to prevent sn2_ptc_init code from attempting to load on non-sn2 systems
when sn2_smp.c is built-in to generic kernel.
Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Fix up copyright in tioce header files
Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Kill the arq->state poison statement in as_add_request(), it can trigger
for perfectly valid code that just reuses a request after io completion
instead of freeing it and allocating a new one. We probably should
introduce a blk_init_request() to start from scratch, but for now just
kill it as we will be removing the as specific poisoning soon.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Dave Jones <davej@redhat.com>
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Neither of them are ever written to.
Noted by Arjan van de Ven
Signed-off-by: Dave Jones <davej@redhat.com>
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It's never written to.
Noted by Arjan van de Ven
Signed-off-by: Dave Jones <davej@redhat.com>
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Fix kernel-doc warnings in network files.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- IP_NF_CONNTRACK_MARK is bool and depends on only IP_NF_CONNTRACK
which is tristate. If a variable depends on IP_NF_CONNTRACK_MARK and
doesn't care about IP_NF_CONNTRACK, it can be y. This must be avoided.
- IP_NF_CT_ACCT has same problem.
- IP_NF_TARGET_CLUSTERIP also depends on IP_NF_MANGLE.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Don't show local table to behave similar to fib_hash.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Based on suggestion from Masahide Nakamura <nakam@linux-ipv6.org>.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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addrconf_verify(...) only traverse address hash table when
addrconf_hash_lock is held for writing, and it may hold
addrconf_hash_lock for a long time. So I think it's better to acquire
addrconf_hash_lock for reading instead of writing
Signed-off-by: Yan Zheng <yanzheng@21cn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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From: Alexandra Kossovsky <Alexandra.Kossovsky@oktetlabs.ru>
From http://bugzilla.kernel.org/show_bug.cgi?id=4746
There is user data corruption when using ioctl(SIOCGIFCONF) in 32-bit
application running amd64 kernel. I do not think that this problem is
exploitable, but any data corruption may lead to security problems.
Following code demonstrates the problem
#include <stdint.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <net/if.h>
#include <sys/ioctl.h>
char buf[256];
main()
{
int s = socket(AF_INET, SOCK_DGRAM, 0);
struct ifconf req;
int i;
req.ifc_buf = buf;
req.ifc_len = 41;
printf("Result %d\n", ioctl(s, SIOCGIFCONF, &req));
printf("Len %d\n", req.ifc_len);
for (i = 41; i < 256; i++)
if (buf[i] != 0)
printf("Byte %d is corrupted\n", i);
}
Steps to reproduce:
Compile the code above into 32-bit elf and run it. You'll get
Result 0
Len 32
Byte 48 is corrupted
Byte 52 is corrupted
Byte 53 is corrupted
Byte 54 is corrupted
Byte 55 is corrupted
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This way we don't have to check it in sk_run_filter().
Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If two packets were queued to be sent at the same time in the future,
their order would be reversed. This would occur because the queue is
traversed back to front, and a position is found by checking whether
the new packet needs to be sent before the packet being examined. If
the new packet is to be sent at the same time of a previous packet, it
would end up before the old packet in the queue. This patch places
packets in the correct order when they are queued to be sent at a same
time in the future.
Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix an OOPS is CinergyT2 driver when registering IR remote
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Originally for 2.6.16, but the semaphore causes problems for some
people so get rid of it now.
It's not needed anymore because the ioctl hash table is never changed
at run time now.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Ever since we remove msr.c from x86_64 branch and started grabbing it from
i386, msr device (read functionality) has been broken for us.
This is due to the differences between asm-i386/msr.h and asm-x86_64/msr.h interfaces.
Here is a patch to our side to fix this.
Thankfully, as of current (2.6.15-rc1-git6) tree, arch/i386/kernel/msr.c is the only file that uses rdmsr_safe macro.
Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Needed to make the earlier use disabled CPUs for CPU hotplug patch
actually work.
Need to register disabled processors as well, so we can count them
towards cpu_possible_map as hot pluggable cpus.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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bigsmp is reported to work on large Opteron systems on 32bit too.
Enable it by default there.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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