Commit Graph

108940 Commits

Author SHA1 Message Date
Akinobu Mita
c82f296601 brd: fix name argument of unregister_blkdev()
The name of brd block device is "ramdisk", it's not "brd".
(The block device is registered by register_blkdev(RAMDISK_MAJOR, "ramdisk")
So it should be unregistered by unregister_blkdev(RAMDISK_MAJOR, "ramdisk")

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Sven Wegener
f3944d61dd nbd: fix memory leak of nbd_dev array
We leak the memory allocated for the nbd_dev array at multiple places.
Fix them by either adding a kfree() or by rearranging code to return
before we allocate the memory.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Marcin Slusarz
759f9a2df7 mm: mminit_loglevel cannot be __meminitdata anymore
mminit_loglevel is now used from mminit_verify_zonelist <- build_all_zonelists <-

1. online_pages <- memory_block_action <- memory_block_change_state <- store_mem_state (sys handler)
2. numa_zonelist_order_handler (proc handler)

so it cannot be annotated __meminit - drop it

fixes following section mismatch warning:
WARNING: vmlinux.o(.text+0x71628): Section mismatch in reference from the function mminit_verify_zonelist() to the variable .meminit.data:mminit_loglevel
The function mminit_verify_zonelist() references
the variable __meminitdata mminit_loglevel.
This is often because mminit_verify_zonelist lacks a __meminitdata
annotation or the annotation of mminit_loglevel is wrong.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Hugh Dickins
07279cdfd9 mm: show free swap as signed
Adjust <Alt><SysRq>m show_swap_cache_info() to show "Free swap" as a
signed long: the signed format is preferable, because during swapoff
nr_swap_pages can legitimately go negative, so makes more sense thus
(it used to be shown redundantly, once as signed and once as unsigned).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Hugh Dickins
16f8c5b2e6 mm: page_remove_rmap comments on PageAnon
Add a comment to s390's page_test_dirty/page_clear_dirty/page_set_dirty
dance in page_remove_rmap(): I was wrong to think the PageSwapCache test
could be avoided, and would like a comment in there to remind me.  And
mention s390, to help us remember that this block is not really common.

Also move down the "It would be tidy to reset PageAnon" comment: it does
not belong to s390's block, and it would be unwise to reset PageAnon
before we're done with testing it.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Mike Frysinger
d0fd93781c Blackfin RTC Driver: dont let RTC programming in bootloaders randomly cause ~5 second boot delays
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Graf Yang
7f60459921 Blackfin RTC Driver: BF561 not have on-chip RTC
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Mike Frysinger
8c9166f7a6 Blackfin RTC Driver: do all initialization before we register the rtc and make it available
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Mike Frysinger
fe2e1cf83a Blackfin RTC Driver: move irq request/free out of open/release and into probe/remove so that the non-dev interfaces (like sysfs) work as expected
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Clement Calmels
1804dc6e14 /proc/self/maps doesn't display the real file offset
This addresses

	http://bugzilla.kernel.org/show_bug.cgi?id=11318

In function show_map (file: fs/proc/task_mmu.c), if vma->vm_pgoff > 2^20
than (vma->vm_pgoff << PAGE_SIZE) is greater than 2^32 (with PAGE_SIZE
equal to 4096 (i.e.  2^12).  The next seq_printf use an unsigned long for
the conversion of (vma->vm_pgoff << PAGE_SIZE), as a result the offset
value displayed in /proc/self/maps is truncated if the page offset is
greater than 2^20.

A test that shows this issue:

#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>

#define PAGE_SIZE (getpagesize())

#if __i386__
#   define U64_STR "%llx"
#elif __x86_64
#   define U64_STR "%lx"
#else
#   error "Architecture Unsupported"
#endif

int main(int argc, char *argv[])
{
	int fd;
	char *addr;
	off64_t offset = 0x10000000;
	char *filename = "/dev/zero";

	fd = open(filename, O_RDONLY);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	offset *= 0x10;
	printf("offset = " U64_STR "\n", offset);

	addr = (char*)mmap64(NULL, PAGE_SIZE, PROT_READ, MAP_PRIVATE, fd,
			     offset);
	if ((void*)addr == MAP_FAILED) {
		perror("mmap64");
		return 1;
	}

	{
		FILE *fmaps;
		char *line = NULL;
		size_t len = 0;
		ssize_t read;
		size_t filename_len = strlen(filename);

		fmaps = fopen("/proc/self/maps", "r");
		if (!fmaps) {
			perror("fopen");
			return 1;
		}
		while ((read = getline(&line, &len, fmaps)) != -1) {
			if ((read > filename_len + 1)
			    && (strncmp(&line[read - filename_len - 1], filename, filename_len) == 0))
				printf("%s", line);
		}

		if (line)
			free(line);

		fclose(fmaps);
	}

	close(fd);
	return 0;
}

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Clement Calmels <cboulte@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Andreas Herrmann
35fc908dc0 documentation: describe bootmem_debug kernel parameter
"bootmem_debug" is not mentioned in kernel-parameters.txt. Recently I
had to use that kernel option and I think it should be documented.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
Matthew Garrett
f14413184b eeepc-laptop: fix use after free
eeepc-laptop uses the hwmon struct after unregistering the device, causing
an oops on module unload.  Flip the ordering to fix.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Karol Kozimor <sziwan@users.sourceforge.net>
Cc: <stable@kernel.org>		[2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
David Howells
0c7281c0fa FRV: Provide ioremap_wc() for FRV
Provide ioremap_wc() for FRV.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 13:19:52 -07:00
David Howells
449f76506f MN10300: Supply ioremap_wc() for MN10300
Supply ioremap_wc() for MN10300.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 13:19:51 -07:00
David Woodhouse
e4464facd6 Reserve NFS fileid values for btrfs
Purely cosmetic for now, but we might as well get it merged ASAP.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 13:19:51 -07:00
David Woodhouse
1c8e40e406 Reduce brokenness of CRIS headers_install
I won't say 'fix', because they still look broken, although this will at
least allow 'make ARCH=CRIS headers_install' to _complete_.

For headers which are exported, we should probably choose between
asm/arch-v10 and asm/arch-v32 by something that GCC defines -- we can't
rely on a generated symlink. And we certainly can't export an arch/
directory which doesn't even exist.

And the only thing that we seem to include from the arch/ directory is
<asm/arch/ptrace.h> from <asm/ptrace.h> ... and that isn't exported in
either arch-v10 or arch-v32 _anyway_.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 13:19:51 -07:00
Linus Torvalds
1bbe44f69d Merge branch 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Provide a FLAT_PLAT_INIT() definition.
  binfmt_flat: Stub in a FLAT_PLAT_INIT().
  video: export sh_mobile_lcdc panel size
  sh: select memchunk size using kernel cmdline
  sh: export sh7723 VEU as VEU2H
  input: migor_ts compile and detection fix
  sh: remove MSTPCR defines from Migo-R header file
  sh: Update sh7763rdp defconfig
  sh: Add support sh7760fb to sh7763rdp board
  sh: Add support sh_eth to sh7763rdp board
  sh: Disable 64kB hugetlbpage size when using 64kB PAGE_SIZE.
  sh: Don't export __{s,u}divsi3_i4i from SH-2 libgcc.
  fix SH7705_CACHE_32KB compilation
  sh: mach-x3proto: Fix up smc91x platform data.
2008-08-20 08:46:11 -07:00
Linus Torvalds
8498ffd667 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Fix vio_bus_probe oops on probe error
  powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices
  powerpc: Fix /dev/oldmem interface for kdump
  powerpc/spufs: Remove invalid semicolon after if statement
  powerpc/spufs: reference context while dropping state mutex in scheduler
  powerpc/spufs: fix npc setting for NOSCHED contexts
2008-08-20 08:44:33 -07:00
Linus Torvalds
75d9506218 Merge branch 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace
* 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace:
  tracehook: fix SA_NOCLDWAIT
2008-08-20 08:43:47 -07:00
Linus Torvalds
c5b0079c0a Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (22 commits)
  [SCSI] ibmvfc: Driver version 1.0.2
  [SCSI] ibmvfc: Add details to async event log
  [SCSI] ibmvfc: Sanitize response lengths
  [SCSI] ibmvfc: Fix for lost async events
  [SCSI] ibmvfc: Fixup host state during reinit
  [SCSI] ibmvfc: Fix another hang on module removal
  [SCSI] ibmvscsi: Fixup desired DMA value for shared memory partitions
  [SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissions
  [SCSI] qla2xxx: Update version number to 8.02.01-k7.
  [SCSI] qla2xxx: Explicitly tear-down vports during PCI remove_one().
  [SCSI] qla2xxx: Reference proper ha during SBR handling.
  [SCSI] qla2xxx: Set npiv_supported flag for FCoE HBAs.
  [SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands.
  [SCSI] qla2xxx: Correct vport-state management issues during ISP-ABORT.
  [SCSI] qla2xxx: Correct synchronization of software/firmware fcport states.
  [SCSI] scsi_dh: Initialize lun_state in check_ownership()
  [SCSI] scsi_dh: Do not use scsilun in rdac hardware handler
  [SCSI] megaraid_sas: version and Documentation Update
  [SCSI] megaraid_sas: add new controllers (0x78 0x79)
  [SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routine
  ...
2008-08-20 08:42:53 -07:00
Linus Torvalds
5f22ca9b13 vfat: fix 'sync' mount deadlock due to BKL->lock_super conversion
There was another FAT BKL conversion deadlock reported by Bart
Trojanowski due to the BKL being used as a recursive lock by FAT, which
was missed because it only triggers with 'sync' (or 'dirsync') mounts.

The recursion worked for the BKL, but after the conversion to lock_super
(which uses a mutex), it just deadlocks.

Thanks to Bart for debugging this and testing the fix.  The lock
debugging information from the original report:

  =============================================
  [ INFO: possible recursive locking detected ]
  2.6.27-rc3-bisect-00448-ga7f5aaf #16
  ---------------------------------------------
  mv/4020 is trying to acquire lock:
   (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20

  but task is already holding lock:
   (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20

  other info that might help us debug this:
  3 locks held by mv/4020:
   #0:  (&sb->s_type->i_mutex_key#9/1){--..}, at: [<c01b2336>] do_unlinkat+0x66/0x140
   #1:  (&sb->s_type->i_mutex_key#9){--..}, at: [<c01b0954>] vfs_unlink+0x84/0x110
   #2:  (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20

  stack backtrace:
  Pid: 4020, comm: mv Not tainted 2.6.27-rc3-bisect-00448-ga7f5aaf #16
   [<c014e694>] validate_chain+0x984/0xea0
   [<c0108d70>] ? native_sched_clock+0x0/0xf0
   [<c014ee9c>] __lock_acquire+0x2ec/0x9b0
   [<c014f5cf>] lock_acquire+0x6f/0x90
   [<c01a90fe>] ? lock_super+0x1e/0x20
   [<c044e5fd>] mutex_lock_nested+0xad/0x300
   [<c01a90fe>] ? lock_super+0x1e/0x20
   [<c01a90fe>] ? lock_super+0x1e/0x20
   [<c01a90fe>] lock_super+0x1e/0x20
   [<f8b3a700>] fat_write_inode+0x60/0x2b0 [fat]
   [<c0450878>] ? _spin_unlock_irqrestore+0x48/0x80
   [<f8b3a953>] ? fat_sync_inode+0x3/0x20 [fat]
   [<f8b3a962>] fat_sync_inode+0x12/0x20 [fat]
   [<f8b37c7e>] fat_remove_entries+0xbe/0x120 [fat]
   [<f8b422ef>] vfat_unlink+0x5f/0x90 [vfat]
   [<f8b42290>] ? vfat_unlink+0x0/0x90 [vfat]
   [<c01b0968>] vfs_unlink+0x98/0x110
   [<c01b2400>] do_unlinkat+0x130/0x140
   [<c016a8f5>] ? audit_syscall_entry+0x105/0x150
   [<c01b253b>] sys_unlinkat+0x3b/0x40
   [<c01040d3>] sysenter_do_call+0x12/0x3f
   =======================

where the deadlock is due to the nesting of lock_super from vfat_unlink
to fat_write_inode:

 - do_unlinkat
   - vfs_unlink
     - vfat_unlink
       * lock_super
       - fat_remove_entries
         - fat_sync_inode
           - fat_write_inode
             * lock_super

and the fix is to simply remove the use of lock_super() in fat_write_inode.

The lock_super() there had been just an automatic conversion of the
kernel lock to the superblock lock, but no locking was actually needed
there, since the code in fat_write_inode already protected all relevant
accesses with a spinlock (sbi->inode_hash_lock to be exact).  The only
code inside the BKL (and thus the superblock lock) was accesses tp local
variables or calls to functions that have long been SMP-safe (i.e.
sb_bread, mark_buffe_dirty and brlese).

Bart reports:
 "Looks good.  I ran 10 parallel processes creating 1M files truncating
  them, writing to them again and then deleting them.  This patch fixes
  the issue I ran into.

  Signed-off-by: Bart Trojanowski <bart@jukie.net>"

Reported-and-tested-by: Bart Trojanowski <bart@jukie.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 08:31:19 -07:00
Roland McGrath
1b04624f93 tracehook: fix SA_NOCLDWAIT
I outwitted myself again in commit 2b2a1ff64a,
and broke the SA_NOCLDWAIT behavior so it leaks zombies.  This fixes it.

Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Roland McGrath <roland@redhat.com>
2008-08-19 20:37:07 -07:00
Brian King
cd5aeb9f6c powerpc: Fix vio_bus_probe oops on probe error
When CMO is enabled and booted on a non CMO system and the VIO
device's probe function fails, an oops can result since
vio_cmo_bus_remove is called when it should not.  This fixes it by
avoiding the vio_cmo_bus_remove call on platforms that don't implement
CMO.

cpu 0x0: Vector: 300 (Data Access) at [c00000000e13b3d0]
    pc: c000000000020d34: .vio_cmo_bus_remove+0xc0/0x1f4
    lr: c000000000020ca4: .vio_cmo_bus_remove+0x30/0x1f4
    sp: c00000000e13b650
   msr: 8000000000009032
   dar: 0
 dsisr: 40000000
  current = 0xc00000000e0566c0
  paca    = 0xc0000000006f9b80
    pid   = 2428, comm = modprobe
enter ? for help
[c00000000e13b6e0] c000000000021d94 .vio_bus_probe+0x2f8/0x33c
[c00000000e13b7a0] c00000000029fc88 .driver_probe_device+0x13c/0x200
[c00000000e13b830] c00000000029fdac .__driver_attach+0x60/0xa4
[c00000000e13b8c0] c00000000029f050 .bus_for_each_dev+0x80/0xd8
[c00000000e13b980] c00000000029f9ec .driver_attach+0x28/0x40
[c00000000e13ba00] c00000000029f630 .bus_add_driver+0xd4/0x284
[c00000000e13baa0] c0000000002a01bc .driver_register+0xc4/0x198
[c00000000e13bb50] c00000000002168c .vio_register_driver+0x40/0x5c
[c00000000e13bbe0] d0000000003b3f1c .ibmvfc_module_init+0x70/0x109c [ibmvfc]
[c00000000e13bc70] c0000000000acf08 .sys_init_module+0x184c/0x1a10
[c00000000e13be30] c000000000008748 syscall_exit+0x0/0x40

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 09:50:22 +10:00
Joachim Fenkes
4589f1fe57 powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices
Recent of_platform changes made of_bus_type_init() overwrite the bus
type's .dev_attrs list, meaning that the "name" attribute that ibmebus
devices previously had is no longer present.  This is a user-visible
regression which breaks the userspace eHCA support, since the eHCA
userspace driver relies on the name attribute to check for valid
adapters.

This fixes it by providing the "name" attribute in the generic OF
device code instead.  Tested on POWER.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 09:50:21 +10:00
Michael Ellerman
7230ced492 powerpc: Fix /dev/oldmem interface for kdump
A change to __ioremap() broke reading /dev/oldmem because we're no
longer able to ioremap pfn 0 (d177c207, "[PATCH] powerpc: IOMMU: don't
ioremap null addresses").

We actually don't need to ioremap for anything that's part of the linear
mapping, so just read it directly.

Also make sure we're only reading one page or less at a time.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 09:50:21 +10:00
Paul Mackerras
d82bf49094 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs into merge 2008-08-20 09:18:20 +10:00
Linus Torvalds
395c68464c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: Kconfig help update
  ieee1394: sbp2: let nodemgr retry node updates during bus reset series
  ieee1394: don't drop nodes during bus reset series
  ieee1394: regression in 2.6.25: updates should happen before probes
2008-08-19 13:56:21 -07:00
Linus Torvalds
ddd13dc606 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: add acpi_find_root_bridge_handle
  PCI: acpi_pcihp: run _OSC on a root bridge
  x86/PCI: irq and pci_ids patch for Intel Ibex Peak PCHs
  x86/PCI: allow scanning of 255 PCI busses
  x86, pci: detect end_bus_number according to acpi/e820 reserved, v2
  pci: debug extra pci bus resources
  pci: debug extra pci resources range
2008-08-19 13:55:47 -07:00
Linus Torvalds
f607e3a03c Revert "[CPUFREQ][2/2] preregister support for powernow-k8"
This reverts commit 34ae7f35a2, which has
been reported to cause a number of problems.  During suspend and resume,
it apparently causes a crash in a CPU hotplug notifier to happen,
although the exact details are sketchy because of the inability to get
good traces during the suspend sequence.

See buzilla entries

	http://bugzilla.kernel.org/show_bug.cgi?id=11296
	http://bugzilla.kernel.org/show_bug.cgi?id=11339

for more examples and details.

[ Mark: "Revert the patch for now.  I'm still looking into getting a
  reliable reproduction and I do not have a fix at this time." ]

Requested-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Mark Langsdorf <mark.langsdorf@amd.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@inux-foundation.org>
2008-08-19 13:34:59 -07:00
Linus Torvalds
96d6d72d4e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: evdev - fix printf() format for sizeof
  Input: remove version.h from drivers that don't need it
  Input: cobalt_btns - add missing MODULE_LICENSE
2008-08-19 13:34:33 -07:00
Linus Torvalds
4309e09242 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
  pkt_sched: Prevent livelock in TX queue running.
  Revert "pkt_sched: Add BH protection for qdisc_stab_lock."
  Revert "pkt_sched: Protect gen estimators under est_lock."
  pkt_sched: remove bogus block (cleanup)
  nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization
  netfilter: ctnetlink: sleepable allocation with spin lock bh
  netfilter: ctnetlink: fix sleep in read-side lock section
  netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks
  netfilter: ipt_addrtype: Fix matching of inverted destination address type
  dccp: Fix panic caused by too early termination of retransmission mechanism
  pkt_sched: Don't hold qdisc lock over qdisc_destroy().
  pkt_sched: Add lockdep annotation for qdisc locks
  pkt_sched: Never schedule non-root qdiscs.
  removed unused #include <version.h>
  rt2x00: Fix txdone_entry_desc_flags
  b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306
  mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
  p54u: reset skb's data/tail pointer on requeue
  p54: move p54_vdcf_init to the right place.
  iwlwifi: fix printk newlines
  ...
2008-08-19 09:59:02 -07:00
Stefan Richter
30b0aa7c9a firewire: Kconfig help update
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-08-19 18:47:56 +02:00
Stefan Richter
a3384067fb ieee1394: sbp2: let nodemgr retry node updates during bus reset series
sbp2 was too quick to report .update() to the ieee1394 core as failed.
(Logged as "Failed to reconnect to sbp2 device!".)  The core would then
unbind sbp2 from the device.

This is not justified if the .update() failed because another bus reset
happened.  We check this and tell the ieee1394 that .update() succeeded,
and the core will call sbp2's .update() for the new bus reset as well.

This improves reconnection/re-login especially on buses with several
disks as they may issue bus resets in close succession when they come
online.

Tested by Damien Benoist.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-08-19 18:47:56 +02:00
Stefan Richter
c921a97457 ieee1394: don't drop nodes during bus reset series
nodemgr_node_probe checked for generation increments too late and
therefore prematurely reported nodes as "suspended".

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11349.  Reported and
tested by Damien Benoist.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-08-19 18:47:55 +02:00
Stefan Richter
6848408abf ieee1394: regression in 2.6.25: updates should happen before probes
Regression since commit 73cf60232e,
"ieee1394: use class iteration api":  The two loops for (1.) driver
updates and (2.) driver probes were replaced by a single loop with
bogus needs_probe checks.  Hence updates and probes were now intermixed,
and especially sbp2 updates (reconnects) held up longer than necessary.

While we fix it, change the needs_probe flag to bool type for clarity.

Tested by Damien Benoist.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-08-19 18:47:55 +02:00
Geert Uytterhoeven
c85e2031eb Input: evdev - fix printf() format for sizeof
commit f2afa7711f ("Input: paper over a bug in
Synaptics X driver") introduced a compiler warning on 64-bit platforms, as
sizeof() returns a size_t, not an (unsigned) int:

| drivers/input/evdev.c: In function 'handle_eviocgbit':
| drivers/input/evdev.c:684: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'

Use the proper `z' modifier for size_t, and make the printf() formats for the
sizes unsigned while we're at it.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-08-19 11:35:27 -04:00
Ilpo Järvinen
cb9808d3d0 powerpc/spufs: Remove invalid semicolon after if statement
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-08-19 22:04:55 +08:00
David S. Miller
195648bbc5 pkt_sched: Prevent livelock in TX queue running.
If dev_deactivate() is trying to quiesce the queue, it
is theoretically possible for another cpu to livelock
trying to process that queue.  This happens because
dev_deactivate() grabs the queue spinlock as it checks
the queue state, whereas net_tx_action() does a trylock
and reschedules the qdisc if it hits the lock.

This breaks the livelock by adding a check on
__QDISC_STATE_DEACTIVATED to net_tx_action() when
the trylock fails.

Based upon feedback from Herbert Xu and Jarek Poplawski.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-19 04:00:36 -07:00
David S. Miller
d2805395aa Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6 2008-08-19 01:33:25 -07:00
David S. Miller
f3b9605d74 Revert "pkt_sched: Add BH protection for qdisc_stab_lock."
This reverts commit 1cfa26661a.

qdisc_destroy() runs fully under RTNL again and not from softint any
longer, so this change is no longer needed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 22:33:05 -07:00
David S. Miller
deb3abf15f Revert "pkt_sched: Protect gen estimators under est_lock."
This reverts commit d4766692e7.

qdisc_destroy() now runs in RTNL fully again, so this
change is no longer needed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 22:32:10 -07:00
Ilpo Järvinen
e5befbd952 pkt_sched: remove bogus block (cleanup)
...Last block local var got just deleted.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 22:30:01 -07:00
Stephen Hemminger
9f59365374 nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization
Use incoming network tuple as seed for NAT port randomization.
This avoids concerns of leaking net_random() bits, and also gives better
port distribution. Don't have NAT server, compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>

[ added missing EXPORT_SYMBOL_GPL ]

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:32:32 -07:00
Pablo Neira Ayuso
fab00c5d15 netfilter: ctnetlink: sleepable allocation with spin lock bh
This patch removes a GFP_KERNEL allocation while holding a spin lock with
bottom halves disabled in ctnetlink_change_helper().

This problem was introduced in 2.6.23 with the netfilter extension
infrastructure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:31:46 -07:00
Pablo Neira Ayuso
cb1cb5c474 netfilter: ctnetlink: fix sleep in read-side lock section
Fix allocation with GFP_KERNEL in ctnetlink_create_conntrack() under
read-side lock sections.

This problem was introduced in 2.6.25.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:31:24 -07:00
Pablo Neira Ayuso
1575e7ea01 netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks
If we create a conntrack that has NAT handlings and a helper, the helper
is assigned twice. This happens because nf_nat_setup_info() - via
nf_conntrack_alter_reply() - sets the helper before ctnetlink, which
indeed does not check if the conntrack already has a helper as it thinks that
it is a brand new conntrack.

The fix moves the helper assignation before the set of the status flags.
This avoids a bogus assertion in __nf_ct_ext_add (if netfilter assertions are
enabled) which checks that the conntrack must not be confirmed.

This problem was introduced in 2.6.23 with the netfilter extension
infrastructure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-08-18 21:30:55 -07:00
Anders Grafström
46faec9858 netfilter: ipt_addrtype: Fix matching of inverted destination address type
This patch fixes matching of inverted destination address type.

Signed-off-by: Anders Grafström <grfstrm@users.sourceforge.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:29:57 -07:00
David S. Miller
8e0f36ec37 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2008-08-18 21:15:44 -07:00
Gerrit Renker
d28934ad8a dccp: Fix panic caused by too early termination of retransmission mechanism
Thanks is due to Wei Yongjun for the detailed analysis and description of this
bug at http://marc.info/?l=dccp&m=121739364909199&w=2

The problem is that invalid packets received by a client in state REQUEST cause
the retransmission timer for the DCCP-Request to be reset. This includes freeing
the Request-skb ( in dccp_rcv_request_sent_state_process() ). As a consequence,
 * the arrival of further packets cause a double-free, triggering a panic(),
 * the connection then may hang, since further retransmissions are blocked.

This patch changes the order of statements so that the retransmission timer is
reset, and the pending Request freed, only if a valid Response has arrived (or
the number of sysctl-retries has been exhausted).

Further changes:
----------------
To be on the safe side, replaced __kfree_skb with kfree_skb so that if due to
unexpected circumstances the sk_send_head is NULL the WARN_ON is used instead.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:14:20 -07:00
David S. Miller
4d8863a29c pkt_sched: Don't hold qdisc lock over qdisc_destroy().
Based upon reports by Denys Fedoryshchenko, and feedback
and help from Jarek Poplawski and Herbert Xu.

We always either:

1) Never made an external reference to this qdisc.

or

2) Did a dev_deactivate() which purged all asynchronous
   references.

So do not lock the qdisc when we call qdisc_destroy(),
it's illegal anyways as when we drop the lock this is
free'd memory.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-18 21:06:19 -07:00