safe/jmp/linux-2.6
14 years agox86, 32-bit: ifdef out struct thread_struct::fs
Alexey Dobriyan [Sun, 3 May 2009 23:29:52 +0000 (03:29 +0400)]
x86, 32-bit: ifdef out struct thread_struct::fs

After commit 464d1a78fbf8cf6c7fd970e7b3e2db50a320ce28 aka
"[PATCH] i386: Convert i386 PDA code to use %fs"
%fs saved during context switch moved from thread_struct to pt_regs
and value on thread_struct became unused.

[ Impact: reduce thread_struct size on 32-bit ]

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: containers@lists.linux-foundation.org
LKML-Reference: <20090503232952.GI16631@x200.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: clean up alternative.h
Mathieu Desnoyers [Tue, 28 Apr 2009 15:13:46 +0000 (11:13 -0400)]
x86: clean up alternative.h

Alternative header duplicates assembly that could be merged in
one single macro.  Merging this into this macro also allows to
directly declare ALTERNATIVE() statements within assembly code.

Uses a __stringify() of the feature bits rather than passing a
"i" operand.  Leave the old %0 operand as-is (set to 0), unused
to stay compatible with API.

(v2: tab alignment fixes)

[ Impact: cleanup ]

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
LKML-Reference: <20090428151346.GA31212@Krystal>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Mon, 27 Apr 2009 15:39:02 +0000 (08:39 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Do not try to validate extents on special files
  ext4: Ignore i_file_acl_high unless EXT4_FEATURE_INCOMPAT_64BIT is present
  ext4: Fix softlockup caused by illegal i_file_acl value in on-disk inode

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Mon, 27 Apr 2009 15:38:51 +0000 (08:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  ptrace: ptrace_attach: fix the usage of ->cred_exec_mutex

15 years agoMerge branch 'sh/for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Mon, 27 Apr 2009 15:38:15 +0000 (08:38 -0700)]
Merge branch 'sh/for-2.6.30' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix up unsigned syscall_nr in SH-5 pt_regs.
  maple: input: fix up maple mouse driver
  sh: sh7785lcr: fix defconfig for 29-bit mode

15 years agoFRV: Stop gcc from generating uninitialised variable warnings after BUG()
David Howells [Mon, 27 Apr 2009 10:55:23 +0000 (11:55 +0100)]
FRV: Stop gcc from generating uninitialised variable warnings after BUG()

Stop gcc from generating uninitialised variable warnings after BUG().
The problem is that FRV's call into its gdbstub appears to return (if
the function is marked noreturn, then the compiler is under no
obligation to pass it a return address, and so GDB won't know where the
bug happened).

To get around this, we make the do...while wrapper in _debug_bug_trap()
an endless loop from which there's no escape.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoFRV: Wire up new syscalls
David Howells [Mon, 27 Apr 2009 10:55:17 +0000 (11:55 +0100)]
FRV: Wire up new syscalls

Wire up new system calls for the FRV arch (preadv and pwritev).

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoptrace: ptrace_attach: fix the usage of ->cred_exec_mutex
Oleg Nesterov [Sun, 26 Apr 2009 23:41:34 +0000 (01:41 +0200)]
ptrace: ptrace_attach: fix the usage of ->cred_exec_mutex

ptrace_attach() needs task->cred_exec_mutex, not current->cred_exec_mutex.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
15 years agosh: Fix up unsigned syscall_nr in SH-5 pt_regs.
Paul Mundt [Mon, 27 Apr 2009 08:05:38 +0000 (17:05 +0900)]
sh: Fix up unsigned syscall_nr in SH-5 pt_regs.

syscall_nr is presently defined as unsigned in the SH-5 pt_regs,
while the syscall restarting code wants it to be signed. Fix this
up, and bring it in line with the other SH parts.

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agomaple: input: fix up maple mouse driver
Adrian McMenamin [Sat, 25 Apr 2009 20:43:18 +0000 (20:43 +0000)]
maple: input: fix up maple mouse driver

The maple mouse driver currently in mainline is broken:

bash-3.1# modprobe maplemouse
[   56.886378] input: Dreamcast Mouse as /devices/virtual/input/input3
[   56.918379] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[   56.930543] pc = c003304e
[   56.934973] *pde = 00000000
[   56.944948] Oops: 0000 [#1]
[   56.947867] Modules linked in: maplemouse(+)
[   56.952353]
[   56.953921] Pid : 1157, Comm: \0x09\0x09modprobe
[   56.958021] CPU : 0        \0x09\0x09Not tainted  (2.6.30-rc2-00130-g3e98f9f #1)
[   56.958052]
[   56.966567] PC is at dc_mouse_open+0xe/0x40 [maplemouse]
[   56.972125] PR is at input_open_device+0x8a/0xc0
[   56.976944] PC  : c003304e SP  : 8c88bdcc SR  : 40008100 TEA : c0033834
[   56.983854] R0  : 000006c4 R1  : 00000000 R2  : 40008101 R3  : 00000000
[   56.990744] R4  : 8c8db800 R5  : c0033080 R6  : 00000005 R7  : 00000200
[   56.997635] R8  : 8c8db800 R9  : 8c8dbe3c R10 : 00000000 R11 : 8c98881c
[   57.004525] R12 : 8c8dbe64 R13 : 8ca50140 R14 : 8c88bdd4
[   57.010063] MACH: 00000497 MACL: 00000348 GBR : 29674440 PR  : 8c1b4d0a
[   57.016939]
...

Here is a fix for this, keeping an open and close, so reducing
the load on the system when the mouse is not in use, and also properly
referencing the maple device buffer following the recent update.

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: sh7785lcr: fix defconfig for 29-bit mode
Yoshihiro Shimoda [Wed, 22 Apr 2009 10:50:19 +0000 (10:50 +0000)]
sh: sh7785lcr: fix defconfig for 29-bit mode

Fix the problem that cannot work 29-bit mode when use sh7785lcr_defconfig.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 26 Apr 2009 17:29:38 +0000 (10:29 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, hpet: Stop soliciting hpet=force users on ICH4M
  x86: check boundary in setup_node_bootmem()
  uv_time: add parameter to uv_read_rtc()
  x86: hpet: fix periodic mode programming on AMD 81xx
  x86: more than 8 32-bit CPUs requires X86_BIGSMP
  x86: avoid theoretical spurious NMI backtraces with CONFIG_CPUMASK_OFFSTACK=y
  x86: fix boot crash in NMI watchdog with CONFIG_CPUMASK_OFFSTACK=y and flat APIC
  x86-64: fix FPU corruption with signals and preemption
  x86/uv: fix for no memory at paddr 0
  docs, x86: add nox2apic back to kernel-parameters.txt
  x86: mm/numa_32.c calculate_numa_remap_pages should use __init
  x86, kbuild: make "make install" not depend on vmlinux
  x86/uv: fix init of cpu-less nodes
  x86/uv: fix init of memory-less nodes

15 years agoMerge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 26 Apr 2009 17:29:18 +0000 (10:29 -0700)]
Merge branch 'irq-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/irq: mark NUMA_MIGRATE_IRQ_DESC broken
  x86, irq: Remove IRQ_DISABLED check in process context IRQ move

15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 26 Apr 2009 17:29:01 +0000 (10:29 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  locking: clarify kernel-taint warning message
  lockdep, x86: account for irqs enabled in paranoid_exit
  lockdep: more robust lockdep_map init sequence

15 years agosparc: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:08 +0000 (22:11 -0400)]
sparc: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosh: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:07 +0000 (22:11 -0400)]
sh: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agos390: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:06 +0000 (22:11 -0400)]
s390: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopowerpc: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:05 +0000 (22:11 -0400)]
powerpc: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomn10300: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:04 +0000 (22:11 -0400)]
mn10300: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agom68k: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:03 +0000 (22:11 -0400)]
m68k: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agom32r: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:11:02 +0000 (22:11 -0400)]
m32r: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofrv: convert frv to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:10:59 +0000 (22:10 -0400)]
frv: convert frv to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoalpha: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:10:58 +0000 (22:10 -0400)]
alpha: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Richard Henderson <rth@twiddle.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoxtensa: convert to use __HEAD and HEAD_TEXT macros.
Tim Abbott [Sun, 26 Apr 2009 02:10:57 +0000 (22:10 -0400)]
xtensa: convert to use __HEAD and HEAD_TEXT macros.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoAdd new HEAD_TEXT_SECTION macro.
Tim Abbott [Sun, 26 Apr 2009 02:10:56 +0000 (22:10 -0400)]
Add new HEAD_TEXT_SECTION macro.

This patch is preparation for replacing all uses of ".head.text" or
".text.head" in the kernel with macros, so that the section name can
later be changed without having to touch a lot of the kernel.

Since some linker scripts do more complex things than referencing
HEAD_TEXT, we add a HEAD_TEXT_SECTION macro that just contains the
actual name.

I've defined HEAD_TEXT_SECTION in a new header,
include/linux/section-names.h, so that this section name only needs to
appear in one place.  I anticipate creating similar macro structures
for a number of other section names.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".text.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoext4: Do not try to validate extents on special files
Theodore Ts'o [Fri, 24 Apr 2009 22:45:35 +0000 (18:45 -0400)]
ext4: Do not try to validate extents on special files

The EXTENTS_FL flag should never be set on special files, but if it
is, don't bother trying to validate that the extents tree is valid,
since only files, directories, and non-fast symlinks will ever have an
extent data structure.  We perhaps should flag the filesystem as being
corrupted if we see a special file (named pipes, device nodes, Unix
domain sockets, etc.) with the EXTENTS_FL flag, but e2fsck doesn't
currently check this case, so we'll just ignore this for now, since
it's harmless.

Without this fix, a special device with the extents flag is flagged as
an error by the kernel, so it is impossible to access or delete the
inode, but e2fsck doesn't see it as a problem, leading to
confused/frustrated users.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agoPM/Hibernate: Fix waiting for image device to appear on resume
Rafael J. Wysocki [Fri, 24 Apr 2009 22:16:06 +0000 (00:16 +0200)]
PM/Hibernate: Fix waiting for image device to appear on resume

Commit c751085943362143f84346d274e0011419c84202 ("PM/Hibernate: Wait for
SCSI devices scan to complete during resume") added a call to
scsi_complete_async_scans() to software_resume(), so that it waited for
the SCSI scanning to complete, but the call was added at a wrong place.

Namely, it should have been added after wait_for_device_probe(), which
is called only if the image partition hasn't been specified yet.  Also,
it's reasonable to check if the image partition is present and only wait
for the device probing and SCSI scanning to complete if it is not the
case.

Additionally, since noresume is checked right at the beginning of
software_resume() and the function returns immediately if it's set, it
doesn't make sense to check it once again later.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoROMFS: Advance destination buffer pointer when reading from a blockdev
David Howells [Thu, 23 Apr 2009 15:41:18 +0000 (16:41 +0100)]
ROMFS: Advance destination buffer pointer when reading from a blockdev

RomFS should advance the destination buffer pointer when reading data from a
blockdev source (the data may be split over multiple blocks, each requiring its
own sb_read() call).  Without this, all the data is copied to the beginning of
the output buffer.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoROMFS: romfs_lookup() shouldn't be doing a partial name comparison
David Howells [Thu, 23 Apr 2009 15:41:13 +0000 (16:41 +0100)]
ROMFS: romfs_lookup() shouldn't be doing a partial name comparison

romfs_lookup() should be using a routine akin to strcmp() on the backing store,
rather than one akin to strncmp().  If it uses the latter, it's liable to match
/bin/shutdown when looking up /bin/sh.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agolib: find_last_bit.o needed by a module only, move it from lib to obj
Fred Isaman [Thu, 23 Apr 2009 13:40:32 +0000 (16:40 +0300)]
lib: find_last_bit.o needed by a module only, move it from lib to obj

Currently, although find_last_bit is EXPORTed, it is statically linked
with the kernel and is referenced only under CONFIG_SMP.

When CONFIG_SMP is undefined and find_last_bit is referenced only by
modules, linking fails with:

  ERROR: "find_last_bit" [fs/nfs/nfs.ko] undefined!

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoCacheFiles: Fix the documentation to use the correct credential pointer names
Marc Dionne [Thu, 23 Apr 2009 10:21:55 +0000 (11:21 +0100)]
CacheFiles: Fix the documentation to use the correct credential pointer names

Adjust the CacheFiles documentation to use the correct names of the credential
pointers in task_struct.

The documentation was using names from the old versions of the credentials
patches.

Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agovirtio-rng: Remove false BUG for spurious callbacks
Christian Borntraeger [Thu, 23 Apr 2009 07:12:59 +0000 (16:42 +0930)]
virtio-rng: Remove false BUG for spurious callbacks

The virtio-rng drivers checks for spurious callbacks. Since
callbacks can be implemented via shared interrupts (e.g. PCI) this
could lead to guest kernel oopses with lots of virtio devices.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoext4: Ignore i_file_acl_high unless EXT4_FEATURE_INCOMPAT_64BIT is present
Theodore Ts'o [Fri, 24 Apr 2009 20:11:18 +0000 (16:11 -0400)]
ext4: Ignore i_file_acl_high unless EXT4_FEATURE_INCOMPAT_64BIT is present

Don't try to look at i_file_acl_high unless the INCOMPAT_64BIT feature
bit is set.  The field is normally zero, but older versions of e2fsck
didn't automatically check to make sure of this, so in the spirit of
"be liberal in what you accept", don't look at i_file_acl_high unless
we are using a 64-bit filesystem.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agoext4: Fix softlockup caused by illegal i_file_acl value in on-disk inode
Theodore Ts'o [Fri, 24 Apr 2009 17:43:20 +0000 (13:43 -0400)]
ext4: Fix softlockup caused by illegal i_file_acl value in on-disk inode

If the block containing external extended attributes (which is stored
in i_file_acl and i_file_acl_high) is larger than the on-disk
filesystem, the process which tried to access the extended attributes
will endlessly issue kernel printks complaining that
"__find_get_block_slow() failed", locking up that CPU until the system
is forcibly rebooted.

So when we read in the inode, make sure the i_file_acl value is legal,
and if not, flag the filesystem as being corrupted.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agoMerge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Fri, 24 Apr 2009 15:54:30 +0000 (08:54 -0700)]
Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze

* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: add parameter to microblaze_read()
  microblaze: Use CFLAGS_KERNEL instead of CFLAGS
  microblaze: Add STATE_SAVE_ARG_SPACE for noMMU kernel too
  microblaze: Do not check use_dcache
  microblaze: Do not use PVR configuration for broken MB version
  microblaze: Fix USR1/2 pvr printing message
  microblaze: iowrite upon timeout
  microblaze: Correspond CONFIG...PCMP in Makefile/Kconfig
  microblaze: Remove redundant variable
  microblaze: Move start_thread to process.c
  microblaze: Add missing preadv and pwritev syscalls
  microblaze: Add missing declaration for die and _exception func
  microblaze: Remove sparse error in traps.c
  microblaze: Move task_pt_regs up
  microblaze: Rename kernel_mode to pt_mode in pt_regs
  microblaze: Remove uncache shadow condition
  microblaze: Remove while(1) loop from show_regs function
  microblaze: Remove unneded per cpu SYSCALL_SAVE variable

15 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Fri, 24 Apr 2009 15:48:17 +0000 (08:48 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
  ACPI, i915: Register ACPI video even when not modesetting
  Revert "ACPICA: delete check for AML access to port 0x81-83"
  I/O port protection: update for windows compatibility.
  sony-laptop: always try to unblock rfkill on load
  sony-laptop: fix bogus error message display on resume
  ACPI: EC: Fix ACPI EC resume non-query interrupt message
  sony-laptop: SNC input event 38 fix
  sony-laptop: SNC 127 Initialization Fix
  sony-laptop: Duplicate SNC 127 Event Fix
  ACPI: prevent processor.max_cstate=0 boot crash
  ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
  ACPI: delete obsolete "bus master activity" proc field
  ACPI: idle: mark_tsc_unstable() at init-time, not run-time
  ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
  ACPI video: fix an error when the brightness levels on AC and on Battery are same
  acpi-cpufreq: Do not let get_measured perf depend on internal variable
  acpi-cpufreq: style-only: add parens to math expression
  acpi-cpufreq: Cleanup: Use printk_once
  x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
  thinkpad-acpi: bump up version to 0.23
  ...

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Fri, 24 Apr 2009 15:45:53 +0000 (08:45 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: update the default config for the ColdFire 5407C3 board
  m68knommu: update the default config for the ColdFire 5307C3 board
  m68knommu: update the default config for the ColdFire 5257EVB board
  m68knommu: update the default config for the ColdFire 5249EVB.
  m68knommu: add a defconfig for the ColdFire M5272C3 board
  m68knommu: update the defconfig for the ColdFire 5208evb board
  m68knommu: fix DMA support for ColdFire
  m68knommu: remove unused kernel stats offsets
  m68knommu: fix missing .data.cacheline_aligned section
  m68knommu: Fixed GPIO pin initialization for CONFIG_M5271 FEC.

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Fri, 24 Apr 2009 15:37:40 +0000 (08:37 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Fix potential inode allocation soft lockup in Orlov allocator
  ext4: Make the extent validity check more paranoid
  jbd: use SWRITE_SYNC_PLUG when writing synchronous revoke records
  jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records
  ext4: really print the find_group_flex fallback warning only once

15 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Fri, 24 Apr 2009 15:36:41 +0000 (08:36 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5460/1: Orion: reduce namespace pollution
  [ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
  [ARM] 5457/1: mach-imx gpio buildfix
  [ARM] 5456/1: add sys_preadv and sys_pwritev
  [ARM] pxa/pcm990: start external GPIOs immediately after built-in ones
  [ARM] pxa/palm27x: General fix for Palm27x aSoC driver
  [ARM] pxa/mioa701: use GPIO95 as AC97 reset line
  [ARM] pxa: merge AC97 platform data structures
  [ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Fri, 24 Apr 2009 15:36:06 +0000 (08:36 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: pwc : do not pass stack allocated buffers to USB core.
  USB: otg: Fix bug on remove path without transceiver
  USB: correct error handling in cdc-wdm
  USB: removal of tty->low_latency hack dating back to the old serial code
  USB: serial: sierra driver bug fix for composite interface
  USB: gadget: omap_udc uses platform_driver_probe()
  USB: ci13xxx_udc: fix build error
  USB: musb: Prevent multiple includes of musb.h
  USB: pass mem_flags to dma_alloc_coherent
  USB: g_file_storage: fix use-after-free bug when closing files
  USB: ehci-sched.c: EHCI SITD scheduling bugfix
  USB: fix mos7840 problem with minor numbers
  USB: mos7840: add new device id
  USB: musb: fix build when !CONFIG_PM
  USB: musb: Remove my email address from few musb related drivers
  USB: Gadget: MIPS CI13xxx UDC bugfixes
  USB: Unusual Device support for Gold MP3 Player Energy
  USB: serial: fix lifetime and locking problems

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs...
Linus Torvalds [Fri, 24 Apr 2009 15:32:44 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  eCryptfs: Larger buffer for encrypted symlink targets
  eCryptfs: Lock lower directory inode mutex during lookup
  eCryptfs: Remove ecryptfs_unlink_sigs warnings
  eCryptfs: Fix data corruption when using ecryptfs_passthrough
  eCryptfs: Print FNEK sig properly in /proc/mounts
  eCryptfs: NULL pointer dereference in ecryptfs_send_miscdev()
  eCryptfs: Copy lower inode attrs before dentry instantiation

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Fri, 24 Apr 2009 15:32:23 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Update defconfigs for 2.6.30-rc3
  m68k,m68knommu: Wire up preadv and pwritev
  scsi: a4000 - Correct driver unregistration in case of failure

15 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Fri, 24 Apr 2009 15:28:27 +0000 (08:28 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] update default configuration.
  [S390] omit frame pointers on s390 when possible
  [S390] Use tape_generic_offline directly.
  [S390] /proc/stat idle field for idle cpus
  [S390] appldata: avoid deadlock with appldata_mem
  [S390] ipl: fix compile breakage

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Fri, 24 Apr 2009 15:27:02 +0000 (08:27 -0700)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Ensure that the inode goal block settings are updated
  GFS2: Fix bug in block allocation
  bitops: Add __ffs64 bitop

15 years agoMerge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 24 Apr 2009 15:26:01 +0000 (08:26 -0700)]
Merge branch 'kvm-updates/2.6.30' of git://git./virt/kvm/kvm

* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Unregister cpufreq notifier on unload
  KVM: x86: release time_page on vcpu destruction
  KVM: Fix overlapping check for memory slots
  KVM: MMU: disable global page optimization
  KVM: ia64: fix locking order entering guest
  KVM: MMU: Fix off-by-one calculating large page count

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Fri, 24 Apr 2009 15:16:05 +0000 (08:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bart/ide-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  MAINTAINERS: update IDE entry
  palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup
  palm_bk3710: those registers/bitfields don't exist
  mediabay: fix build for CONFIG_BLOCK=n
  ide: Stop disks on reboot for laptop which cuts power
  ide-cd: fix kernel crash on hppa regression
  palm_bk3710: UDMA performance fix

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 24 Apr 2009 15:15:25 +0000 (08:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add quirk for Packard Bell RS65
  [ALSA] intel8x0: another attempt to fix ac97_clock measure routine
  [ALSA] ac97_codec: increase timeout for analog subsections
  ALSA: hda - Add quirks for Realtek codecs
  ALSA: hda - Fix alc662_init_verbs
  ALSA: keywest: Convert to new-style i2c driver
  ALSA: AOA: Convert onyx and tas codecs to new-style i2c drivers
  ALSA: Atiixp: Add SSID for mute_led quirk (unknown HP model)
  ALSA: us122l: add snd_us122l_free()
  ASoC: Fix warning in wm9705
  ASoC: OMAP: Update contact addresses
  ASoC: pxa-ssp: Don't use SSCR0_SerClkDiv and SSCR0_SCR
  ALSA: us122l: Fix signedness in comparisions

15 years agoradio_si470x: Fix free memory corruption
Alan Cox [Wed, 22 Apr 2009 14:03:15 +0000 (15:03 +0100)]
radio_si470x: Fix free memory corruption

The release path for a disconnected device frees the object then unlocks
the mutex in the freed object...

Found by Dan Carpenter using Smatch

Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoserial: remove contact data
Niels de Vos [Wed, 22 Apr 2009 14:02:44 +0000 (15:02 +0100)]
serial: remove contact data

Remove my name and emailaddress from note in the source. Wincor Nixdorf
only has some ITE-chips on their mainboards, other chips are not
available for me for testing.

Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocafe_nand: Fix warning
Alan Cox [Wed, 22 Apr 2009 14:02:23 +0000 (15:02 +0100)]
cafe_nand: Fix warning

Wrong types on IRQ handler

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Fri, 24 Apr 2009 14:48:24 +0000 (07:48 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cfq-iosched: cache prio_tree root in cfqq->p_root
  cfq-iosched: fix bug with aliased request and cooperation detection
  cfq-iosched: clear ->prio_trees[] on cfqd alloc
  block: fix intermittent dm timeout based oops
  umem: fix request_queue lock warning
  block: simplify I/O stat accounting
  pktcdvd.h should include mempool.h
  cfq-iosched: use the default seek distance when there aren't enough seek samples
  cfq-iosched: make seek_mean converge more quickly
  block: make blk_abort_queue() ignore non-request based devices
  block: include empty disks in /proc/diskstats
  bio: use bio_kmalloc() in copy/map functions
  bio: fix bio_kmalloc()
  block: fix queue bounce limit setting
  block: fix SG_IO vector request data length handling
  scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings

15 years agoMN10300: Update the ASB2303 defconfig
David Howells [Wed, 22 Apr 2009 11:10:07 +0000 (12:10 +0100)]
MN10300: Update the ASB2303 defconfig

Update the defconfig for the ASB2303 evaluation board.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoDelete slow-work timers properly
Jonathan Corbet [Wed, 22 Apr 2009 11:01:49 +0000 (12:01 +0100)]
Delete slow-work timers properly

Slow-work appears to delete its timer as soon as the first user
unregisters, even though other users could be active.  At the same time, it
never seems to delete slow_work_oom_timer.  Arrange for both to happen in
the shutdown path.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 24 Apr 2009 14:46:51 +0000 (07:46 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
  netfilter: ctnetlink: fix gcc warning during compilation
  net/netrom: Fix socket locking
  netlabel: Always remove the correct address selector
  ucc_geth.c: Fix upsmr setting in RMII mode
  8139too: fix HW initial flow
  af_iucv: Fix race when queuing incoming iucv messages
  af_iucv: Test additional sk states in iucv_sock_shutdown
  af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
  af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
  af_iucv: consider state IUCV_CLOSING when closing a socket
  iwlwifi: DMA fixes
  iwlwifi: add debugging for TX path
  mwl8: fix build warning.
  mac80211: fix alignment calculation bug
  mac80211: do not print WARN if config interface
  iwl3945: use cancel_delayed_work_sync to cancel rfkill_poll
  iwlwifi: fix EEPROM validation mask to include OTP only devices
  atmel: fix netdev ops conversion
  pcnet_cs: add cis(firmware) of the Allied Telesis LA-PCM
  mlx4_en: Fix cleanup if workqueue create in mlx4_en_add() fails
  ...

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Fri, 24 Apr 2009 14:45:52 +0000 (07:45 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Fix bus type probing for ESP and LE devices.
  sparc32: Update defconfig.
  sparc64: Update defconfig.

15 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Fri, 24 Apr 2009 14:44:58 +0000 (07:44 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Fix modular build of ide-pmac when mediabay is built in
  powerpc/pasemi: Fix build error on UP
  powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
  maintainers: Fix PS3 patterns
  powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
  powerpc/32: Don't clobber personality flags on exec
  powerpc: Fix crash on CPU hotplug
  powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
  powerpc/85xx: Added SMP defconfig
  powerpc/85xx: Enabled a bunch of FSL specific drivers/options
  powerpc/85xx: Updated generic mpc85xx_defconfig
  powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
  fsl_rio: Pass the proper device to dma mapping routines
  powerpc: Fix of_node_put() exit path in of_irq_map_one()
  powerpc/5200: defconfig updates
  powerpc/5200: Add FLASH nodes to lite5200 device tree
  powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
  powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
  powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back

15 years agoMerge branch 'bjorn.button' into release
Len Brown [Fri, 24 Apr 2009 14:42:29 +0000 (10:42 -0400)]
Merge branch 'bjorn.button' into release

15 years agoMerge branch 'bugzilla-13036' into release
Len Brown [Fri, 24 Apr 2009 14:42:21 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13036' into release

15 years agoMerge branch 'bugzilla-13048' into release
Len Brown [Fri, 24 Apr 2009 14:42:11 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13048' into release

15 years agoMerge branch 'bugzilla-13142' into release
Len Brown [Fri, 24 Apr 2009 14:42:03 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13142' into release

15 years agoMerge branch 'hpet' into release
Len Brown [Fri, 24 Apr 2009 14:41:31 +0000 (10:41 -0400)]
Merge branch 'hpet' into release

15 years agocheck_unsafe_exec: s/lock_task_sighand/rcu_read_lock/
Oleg Nesterov [Thu, 23 Apr 2009 23:02:45 +0000 (01:02 +0200)]
check_unsafe_exec: s/lock_task_sighand/rcu_read_lock/

write_lock(&current->fs->lock) guarantees we can't wrongly miss
LSM_UNSAFE_SHARE, this is what we care about. Use rcu_read_lock()
instead of ->siglock to iterate over the sub-threads. We must see
all CLONE_THREAD|CLONE_FS threads which didn't pass exit_fs(), it
takes fs->lock too.

With or without this patch we can miss the freshly cloned thread
and set LSM_UNSAFE_SHARE, we don't care.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
[ Fixed lock/unlock typo  - Hugh ]
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodo_execve() must not clear fs->in_exec if it was set by another thread
Oleg Nesterov [Thu, 23 Apr 2009 23:01:56 +0000 (01:01 +0200)]
do_execve() must not clear fs->in_exec if it was set by another thread

If do_execve() fails after check_unsafe_exec(), it clears fs->in_exec
unconditionally. This is wrong if we race with our sub-thread which
also does do_execve:

Two threads T1 and T2 and another process P, all share the same
->fs.

T1 starts do_execve(BAD_FILE). It calls check_unsafe_exec(), since
->fs is shared, we set LSM_UNSAFE but not ->in_exec.

P exits and decrements fs->users.

T2 starts do_execve(), calls check_unsafe_exec(), now ->fs is not
shared, we set fs->in_exec.

T1 continues, open_exec(BAD_FILE) fails, we clear ->in_exec and
return to the user-space.

T1 does clone(CLONE_FS /* without CLONE_THREAD */).

T2 continues without LSM_UNSAFE_SHARE while ->fs is shared with
another process.

Change check_unsafe_exec() to return res = 1 if we set ->in_exec, and change
do_execve() to clear ->in_exec depending on res.

When do_execve() suceeds, it is safe to clear ->in_exec unconditionally.
It can be set only if we don't share ->fs with another process, and since
we already killed all sub-threads either ->in_exec == 0 or we are the
only user of this ->fs.

Also, we do not need fs->lock to clear fs->in_exec.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocfq-iosched: cache prio_tree root in cfqq->p_root
Jens Axboe [Thu, 23 Apr 2009 10:19:38 +0000 (12:19 +0200)]
cfq-iosched: cache prio_tree root in cfqq->p_root

Currently we look it up from ->ioprio, but ->ioprio can change if
either the process gets its IO priority changed explicitly, or if
cfq decides to temporarily boost it. So if we are unlucky, we can
end up attempting to remove a node from a different rbtree root than
where it was added.

Fix this by using ->org_ioprio as the prio_tree index, since that
will only change for explicit IO priority settings (not for a boost).
Additionally cache the rbtree root inside the cfqq, then we don't have
to add code to reinsert the cfqq in the prio_tree if IO priority changes.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agocfq-iosched: fix bug with aliased request and cooperation detection
Jens Axboe [Thu, 23 Apr 2009 10:14:56 +0000 (12:14 +0200)]
cfq-iosched: fix bug with aliased request and cooperation detection

cfq_prio_tree_lookup() should return the direct match, yet it always
returns zero. Fix that.

cfq_prio_tree_add() assumes that we don't get a direct match, while
it is very possible that we do. Using O_DIRECT, you can have different
cfqq with matching requests, since you don't have the page cache
to serialize things for you. Fix this bug by only adding the cfqq if
there isn't an existing match.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agocfq-iosched: clear ->prio_trees[] on cfqd alloc
Jens Axboe [Thu, 23 Apr 2009 10:13:27 +0000 (12:13 +0200)]
cfq-iosched: clear ->prio_trees[] on cfqd alloc

Not strictly needed, but we should make it clear that we init the
rbtree roots here.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoblock: fix intermittent dm timeout based oops
Hannes Reinecke [Thu, 23 Apr 2009 08:32:59 +0000 (10:32 +0200)]
block: fix intermittent dm timeout based oops

Very rarely under stress testing of dm, oopses are occuring as
something tampers with an old stack frame.  This has been traced back
to blk_abort_queue() leaving a timeout_list pointing to the stack.
The reason is that sometimes blk_abort_request() won't delete the
timer (if the request is marked as complete but before the timer has
been removed, a small race window).  Fix this by splicing back from
the ususally empty list to the q->timeout_list.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoumem: fix request_queue lock warning
Sage Weil [Thu, 23 Apr 2009 06:37:58 +0000 (08:37 +0200)]
umem: fix request_queue lock warning

The umem driver issues two warnings on boot, due to blk_plug_device() and
blk_remove_plug() being called without q->queue_lock held.  Starting with
e48ec690 (block: extend queue_flag bitops), the queue_flag_* functions
warn if q->queue_lock doesn't appear to be locked.  In fact, q->queue_lock
is NULL (though that apparently isn't otherwise a problem as the driver is
using card->lock for everything).

Although blk_init_queue() with take a request_fn_proc and spinlock_t*,
there isn't a corresponding init helper that takes a make_request_fn.
Setting queue_lock to &card->lock explicitly seems to work fine for me.
The warning goes away and the device appears to behave.

[    1.531881] v2.3 : Micro Memory(tm) PCI memory board block driver
[    1.538136] umem 0000:02:01.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[    1.545018] umem 0000:02:01.0: Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))
[    1.554176] umem 0000:02:01.0: CSR 0xfc9ffc00 -> 0xffffc200013d0c00 (0x100)
[    1.561279] umem 0000:02:01.0: Size 1048576 KB, Battery 1 Disabled (FAILURE), Battery 2 Disabled (FAILURE)
[    1.571114] umem 0000:02:01.0: Window size 16777216 bytes, IRQ 20
[    1.577304] umem 0000:02:01.0: memory NOT initialized. Consider over-writing whole device.
[    1.585989]  umema:<4>------------[ cut here ]------------
[    1.591775] WARNING: at include/linux/blkdev.h:492 blk_plug_device+0x6d/0x106()
[    1.592025] Hardware name: H8SSL
[    1.592025] Modules linked in:
[    1.592025] Pid: 1, comm: swapper Not tainted 2.6.29 #8
[    1.592025] Call Trace:
[    1.592025]  [<ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[    1.592025]  [<ffffffff8025a5b5>] ? save_trace+0x3f/0x9b
[    1.592025]  [<ffffffff8025a68b>] ? add_lock_to_list+0x7a/0xba
[    1.592025]  [<ffffffff8025e609>] ? validate_chain+0xb3b/0xce8
[    1.592025]  [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[    1.592025]  [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[    1.592025]  [<ffffffff8025ef04>] ? __lock_acquire+0x74e/0x7b9
[    1.592025]  [<ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[    1.592025]  [<ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[    1.592025]  [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[    1.592025]  [<ffffffff803ad165>] blk_plug_device+0x6d/0x106
[    1.592025]  [<ffffffff80441575>] mm_make_request+0x46/0x59
[    1.592025]  [<ffffffff803ac2d9>] generic_make_request+0x335/0x3cf
[    1.592025]  [<ffffffff8027fcc7>] ? mempool_alloc_slab+0x11/0x13
[    1.592025]  [<ffffffff8027fdce>] ? mempool_alloc+0x45/0x101
[    1.592025]  [<ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[    1.592025]  [<ffffffff803adda5>] submit_bio+0x10a/0x119
[    1.592025]  [<ffffffff802c8d00>] submit_bh+0xe5/0x109
[    1.592025]  [<ffffffff802cbf43>] block_read_full_page+0x2aa/0x2cb
[    1.592025]  [<ffffffff802cf4c4>] ? blkdev_get_block+0x0/0x4c
[    1.592025]  [<ffffffff805c90a8>] ? _spin_unlock_irq+0x36/0x51
[    1.592025]  [<ffffffff80286836>] ? __lru_cache_add+0x92/0xb2
[    1.592025]  [<ffffffff802cf008>] blkdev_readpage+0x13/0x15
[    1.592025]  [<ffffffff8027de06>] read_cache_page_async+0x90/0x134
[    1.592025]  [<ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[    1.592025]  [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[    1.592025]  [<ffffffff8027deb8>] read_cache_page+0xe/0x45
[    1.592025]  [<ffffffff802f5170>] read_dev_sector+0x2e/0x93
[    1.592025]  [<ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[    1.592025]  [<ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[    1.592025]  [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[    1.592025]  [<ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[    1.592025]  [<ffffffff802ceae9>] __blkdev_get+0x259/0x336
[    1.592025]  [<ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[    1.592025]  [<ffffffff802cebd1>] blkdev_get+0xb/0xd
[    1.592025]  [<ffffffff802f5773>] register_disk+0xc4/0x12b
[    1.592025]  [<ffffffff803b2a7b>] add_disk+0xc3/0x12d
[    1.592025]  [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[    1.592025]  [<ffffffff808a1e73>] mm_init+0x129/0x1a5
[    1.592025]  [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[    1.592025]  [<ffffffff80209056>] _stext+0x56/0x130
[    1.592025]  [<ffffffff80274932>] ? register_irq_proc+0xae/0xca
[    1.592025]  [<ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[    1.592025]  [<ffffffff8087f975>] kernel_init+0x132/0x18b
[    1.592025]  [<ffffffff8020d17a>] child_rip+0xa/0x20
[    1.592025]  [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[    1.592025]  [<ffffffff8087f843>] ? kernel_init+0x0/0x18b
[    1.592025]  [<ffffffff8020d170>] ? child_rip+0x0/0x20
[    1.592025] ---[ end trace 7150b3b86da74e1e ]---
[    1.889858] ------------[ cut here ]------------[ve_plug+0x5f/0x91()
[    1.893848] Hardware name: H8SSL
[    1.893848] Modules linked in:
[    1.893848] Pid: 1, comm: swapper Tainted: G        W  2.6.29 #8
[    1.893848] Call Trace:
[    1.893848]  [<ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[    1.893848]  [<ffffffff805c8411>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[    1.893848]  [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[    1.893848]  [<ffffffff80254245>] ? __atomic_notifier_call_chain+0x0/0xb2
[    1.893848]  [<ffffffff805c90a3>] ? _spin_unlock_irq+0x31/0x51
[    1.893848]  [<ffffffff805c90bf>] ? _spin_unlock_irq+0x4d/0x51
[    1.893848]  [<ffffffff8044157d>] ? mm_make_request+0x4e/0x59
[    1.893848]  [<ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[    1.893848]  [<ffffffff8025a75d>] ? put_lock_stats+0x25/0x27
[    1.893848]  [<ffffffff80441504>] ? mm_unplug_device+0x25/0x50
[    1.893848]  [<ffffffff803acf23>] blk_remove_plug+0x5f/0x91
[    1.893848]  [<ffffffff8044150f>] mm_unplug_device+0x30/0x50
[    1.893848]  [<ffffffff803ab74a>] blk_unplug+0x78/0x7d
[    1.893848]  [<ffffffff803ab75c>] blk_backing_dev_unplug+0xd/0xf
[    1.893848]  [<ffffffff802c853c>] block_sync_page+0x4a/0x4c
[    1.893848]  [<ffffffff8027da1c>] sync_page+0x44/0x4d
[    1.893848]  [<ffffffff805c66fd>] __wait_on_bit_lock+0x42/0x8a
[    1.893848]  [<ffffffff8027d9d8>] ? sync_page+0x0/0x4d
[    1.893848]  [<ffffffff8027d9c4>] __lock_page+0x64/0x6b
[    1.893848]  [<ffffffff802508db>] ? wake_bit_function+0x0/0x2a
[    1.893848]  [<ffffffff8027de4a>] read_cache_page_async+0xd4/0x134
[    1.893848]  [<ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[    1.893848]  [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[    1.893848]  [<ffffffff8027deb8>] read_cache_page+0xe/0x45
[    1.893848]  [<ffffffff802f5170>] read_dev_sector+0x2e/0x93
[    1.893848]  [<ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[    1.893848]  [<ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[    1.893848]  [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[    1.893848]  [<ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[    1.893848]  [<ffffffff802ceae9>] __blkdev_get+0x259/0x336
[    1.893848]  [<ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[    1.893848]  [<ffffffff802cebd1>] blkdev_get+0xb/0xd
[    1.893848]  [<ffffffff802f5773>] register_disk+0xc4/0x12b
[    1.893848]  [<ffffffff803b2a7b>] add_disk+0xc3/0x12d
[    1.893848]  [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[    1.893848]  [<ffffffff808a1e73>] mm_init+0x129/0x1a5
[    1.893848]  [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[    1.893848]  [<ffffffff80209056>] _stext+0x56/0x130
[    1.893848]  [<ffffffff80274932>] ? register_irq_proc+0xae/0xca
[    1.893848]  [<ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[    1.893848]  [<ffffffff8087f975>] kernel_init+0x132/0x18b
[    1.893848]  [<ffffffff8020d17a>] child_rip+0xa/0x20
[    1.893848]  [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[    1.893848]  [<ffffffff8087f843>] ? kernel_init+0x0/0x18b
[    1.893848]  [<ffffffff8020d170>] ? child_rip+0x0/0x20
[    1.893848] ---[ end trace 7150b3b86da74e1f ]---

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoblock: simplify I/O stat accounting
Jerome Marchand [Wed, 22 Apr 2009 12:01:49 +0000 (14:01 +0200)]
block: simplify I/O stat accounting

This simplifies I/O stat accounting switching code and separates it
completely from I/O scheduler switch code.

Requests are accounted according to the state of their request queue
at the time of the request allocation. There is no need anymore to
flush the request queue when switching I/O accounting state.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agopktcdvd.h should include mempool.h
Alexander Beregalov [Tue, 21 Apr 2009 07:33:14 +0000 (09:33 +0200)]
pktcdvd.h should include mempool.h

Fix this build error:
In file included from fs/compat_ioctl.c:104:
include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before 'mempool_t'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agox86, hpet: Stop soliciting hpet=force users on ICH4M
Len Brown [Thu, 23 Apr 2009 23:19:42 +0000 (19:19 -0400)]
x86, hpet: Stop soliciting hpet=force users on ICH4M

The HPET in the ICH4M is not documented in the data sheet
because it was not officially validated.

While it is fine for hackers to continue to use "hpet=force"
to enable the hardware that they have, it is not prudent to
solicit additional "hpet=force" users on this hardware.

[ Impact: remove hpet=force syslog message on old-ICH systems ]

Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <alpine.LFD.2.00.0904231918510.15843@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMerge branch 'bugzilla-12249' into release
Len Brown [Fri, 24 Apr 2009 05:35:46 +0000 (01:35 -0400)]
Merge branch 'bugzilla-12249' into release

15 years agoMerge branch 'bugzilla-12270' into release
Len Brown [Fri, 24 Apr 2009 05:35:33 +0000 (01:35 -0400)]
Merge branch 'bugzilla-12270' into release

15 years agoMerge branch 'bugzilla-13041' into release
Len Brown [Fri, 24 Apr 2009 05:35:24 +0000 (01:35 -0400)]
Merge branch 'bugzilla-13041' into release

15 years agoMerge branch 'cpufreq' into release
Len Brown [Fri, 24 Apr 2009 05:35:15 +0000 (01:35 -0400)]
Merge branch 'cpufreq' into release

15 years agoMerge branch 'idle' into release
Len Brown [Fri, 24 Apr 2009 05:35:08 +0000 (01:35 -0400)]
Merge branch 'idle' into release

15 years agoMerge branch 'irq' into release
Len Brown [Fri, 24 Apr 2009 05:34:59 +0000 (01:34 -0400)]
Merge branch 'irq' into release

15 years agoMerge branch 'sony-laptop' into release
Len Brown [Fri, 24 Apr 2009 05:34:52 +0000 (01:34 -0400)]
Merge branch 'sony-laptop' into release

15 years agoMerge branch 'thermal-regression' into release
Len Brown [Fri, 24 Apr 2009 05:34:45 +0000 (01:34 -0400)]
Merge branch 'thermal-regression' into release

15 years agoMerge branch 'thinkpad-acpi' into release
Len Brown [Fri, 24 Apr 2009 05:34:37 +0000 (01:34 -0400)]
Merge branch 'thinkpad-acpi' into release

15 years agoMerge branch 'video-ac-dc' into release
Len Brown [Fri, 24 Apr 2009 05:34:29 +0000 (01:34 -0400)]
Merge branch 'video-ac-dc' into release

15 years agoACPI, i915: Register ACPI video even when not modesetting
Matthew Garrett [Wed, 15 Apr 2009 20:46:36 +0000 (21:46 +0100)]
ACPI, i915: Register ACPI video even when not modesetting

The ACPI video driver defers registration to the i915 driver if the
system supports opregion-mediated backlight control. This registration
was only being performed in the KMS case. Ensure it's done even if we
don't have modesetting enabled.

http://bugzilla.kernel.org/show_bug.cgi?id=13048

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoRevert "ACPICA: delete check for AML access to port 0x81-83"
Len Brown [Fri, 24 Apr 2009 04:32:52 +0000 (00:32 -0400)]
Revert "ACPICA: delete check for AML access to port 0x81-83"

This reverts commit fdbdc7fc79c02ae4ede869d514179a2c65633d28.

That temporary quick-fix is no longer necessary,
as the previous patch, a65131e942e25c707a652fa4ec2cfcd8b63fec11,
"I/O port protection: update for windows compatibility"
should handle this issue for all ports, including this one.

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoI/O port protection: update for windows compatibility.
Lin Ming [Thu, 16 Apr 2009 07:18:16 +0000 (15:18 +0800)]
I/O port protection: update for windows compatibility.

For windows compatibility,
1) On a port protection violation, simply ignore the request and
   do not return an exception (allow the control method to continue execution.)
2) If only part of the request overlaps a protected port,
   read/write the individual ports that are not protected.

http://bugzilla.kernel.org/show_bug.cgi?id=13036

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosony-laptop: always try to unblock rfkill on load
Mattia Dongili [Sun, 12 Apr 2009 11:26:31 +0000 (11:26 +0000)]
sony-laptop: always try to unblock rfkill on load

This fixes an inconsistent behaviour when loading the driver with the
switch on or off. In the former case you would also need to soft unblock
the switch via the sysfs file entries to really disable rfkill, in the
latter you wouldn't.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Cc: Matthias Welwarsky <matze@welwarsky.de>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosony-laptop: fix bogus error message display on resume
Mattia Dongili [Sun, 12 Apr 2009 11:26:30 +0000 (11:26 +0000)]
sony-laptop: fix bogus error message display on resume

sony_backlight_update_status returns 0 on success -1 on failure (i.e.: the
return value from acpi_callsetfunc. The return value in the resume path
was broken and thus always displaying a bogus warning about not being able
to restore the brightness level.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: EC: Fix ACPI EC resume non-query interrupt message
Almer S. Tigelaar [Sun, 12 Apr 2009 11:26:29 +0000 (11:26 +0000)]
ACPI: EC: Fix ACPI EC resume non-query interrupt message

When resuming from standby (on a laptop) I see the following message in
my kernel.log:
"ACPI: EC: non-query interrupt received, switching to interrupt mode"
This apparently prevented sony-laptop to properly restore the brightness
level on resume.

The cause: In drivers/acpi/ec.c the acpi_ec_suspend function clears the
GPE mode bit, but this is not restored in acpi_ec_resume (the function
below it). The patch below fixes this by properly restoring the GPE_MODE
bit. Tested and confirmed to work.

Signed-off-by: Almer S. Tigelaar <almer@gnome.org>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosony-laptop: SNC input event 38 fix
Almer S. Tigelaar [Sun, 12 Apr 2009 11:26:28 +0000 (11:26 +0000)]
sony-laptop: SNC input event 38 fix

Fixes the "unknown input event 38" messages. ANYBUTTON_RELEASED is now
treated the same way as FN_KEY_RELEASED.

Signed-off-by: Almer S. Tigelaar <almer@gnome.org>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosony-laptop: SNC 127 Initialization Fix
Almer S. Tigelaar [Sun, 12 Apr 2009 11:26:27 +0000 (11:26 +0000)]
sony-laptop: SNC 127 Initialization Fix

Fixes additional special key initialization for SNC 127 key events.
Verified / tested on a Sony VAIO SR model.

Signed-off-by: Almer S. Tigelaar <almer@gnome.org>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosony-laptop: Duplicate SNC 127 Event Fix
Almer S. Tigelaar [Sun, 12 Apr 2009 11:26:26 +0000 (11:26 +0000)]
sony-laptop: Duplicate SNC 127 Event Fix

Fixes a duplicate mapping in the SNC sony_127_events structure.

Signed-off-by: Almer S. Tigelaar <almer@gnome.org>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: prevent processor.max_cstate=0 boot crash
Len Brown [Fri, 24 Apr 2009 03:21:29 +0000 (23:21 -0400)]
ACPI: prevent processor.max_cstate=0 boot crash

As processor.max_cstate is an init-time-only modparam,
sanity checking it at init-time is sufficient.

http://bugzilla.kernel.org/show_bug.cgi?id=13142

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
Len Brown [Thu, 23 Apr 2009 22:59:43 +0000 (18:59 -0400)]
ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M

Linux tells ICH4 users that they can (manually) invoke
"hpet=force" to enable the undocumented ICH-4M HPET.
The HPET becomes available for both clocksource and clockevents.

But as of ff69f2bba67bd45514923aaedbf40fe351787c59
(acpi: fix of pmtimer overflow that make Cx states time incorrect)
the HPET may be used via clocksource for idle accounting, and
hpet=force on an ICH4 box hangs boot.

It turns out that touching the MMIO HPET withing
the ARB_DIS part of C3 will hang the hardware.

The fix is to simply move the timer access outside
the ARB_DIS region.  This is a no-op on modern hardware
because ARB_DIS is no longer used.

http://bugzilla.kernel.org/show_bug.cgi?id=13087

Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years ago[ARM] 5460/1: Orion: reduce namespace pollution
Nicolas Pitre [Wed, 22 Apr 2009 19:08:17 +0000 (20:08 +0100)]
[ARM] 5460/1: Orion: reduce namespace pollution

Symbols like SOFT_RESET are way too generic to be exported at large.
To avoid this, let's move the mbus bridge register defines into a
separate file and include it where needed.  This affects mach-kirkwood,
mach-loki, mach-mv78xx0 and mach-orion5x simultaneously as they all
share code in plat-orion which relies on those defines.

Some other defines have been moved to narrower scopes, or simply deleted
when they had no user.

This fixes compilation problem with mpt2sas on the above listed
platforms.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
Dmitry Baryshkov [Mon, 20 Apr 2009 16:48:28 +0000 (17:48 +0100)]
[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config

Check if we really have Scoop config, otherwice we can get a nice Oops
during probe.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agoUSB: pwc : do not pass stack allocated buffers to USB core.
Martin Fuzzey [Tue, 21 Apr 2009 19:48:09 +0000 (21:48 +0200)]
USB: pwc : do not pass stack allocated buffers to USB core.

This is causes problems on platforms that have alignment requirements
for DMA transfers.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: otg: Fix bug on remove path without transceiver
Robert Jarzmik [Wed, 22 Apr 2009 03:33:10 +0000 (20:33 -0700)]
USB: otg: Fix bug on remove path without transceiver

In the case where a gadget driver is removed while no
transceiver was found at probe time, a bug in
otg_put_transceiver() will trigger.

Provide symetric calls for otg_get_transceiver() and
otg_put_transceiver(), wherever a transceiver was found or
not.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: correct error handling in cdc-wdm
Oliver Neukum [Mon, 20 Apr 2009 15:24:49 +0000 (17:24 +0200)]
USB: correct error handling in cdc-wdm

This patch to cdc-wdm

- checks for partial extra descriptors
- fixes a leak in the error case of probe
- checks for an exact number of endpoints
- adds a clarifying comment

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: removal of tty->low_latency hack dating back to the old serial code
Oliver Neukum [Mon, 20 Apr 2009 15:28:53 +0000 (17:28 +0200)]
USB: removal of tty->low_latency hack dating back to the old serial code

This removes tty->low_latency from all USB serial drivers that push
data into the tty layer at hard interrupt context. It's no longer needed
and actually harmful.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: serial: sierra driver bug fix for composite interface
Elina Pasheva [Wed, 22 Apr 2009 00:54:42 +0000 (17:54 -0700)]
USB: serial: sierra driver bug fix for composite interface

This patch fixes a problem in sierra_send_setup() function when
composite devices are used. One should not be sending ACM commands to
interfaces that are OBEX. Doing this causes an apparent failure as the
ACM command has to time out before the interface can start being used.

Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: gadget: omap_udc uses platform_driver_probe()
David Brownell [Thu, 16 Apr 2009 20:51:46 +0000 (13:51 -0700)]
USB: gadget: omap_udc uses platform_driver_probe()

We now have a more correct solution for shrinking runtime driver
footprints than just marking probe() as __init ... use it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>