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Jason Wessel [Mon, 11 Oct 2010 15:20:14 +0000 (10:20 -0500)]
kdb: Fix oops in kdb_unregister
Nothing should try to use kdb_commands directly as sometimes it is
null. Instead, use the for_each_kdbcmd() iterator.
This particular problem dates back to the initial kdb merge (2.6.35),
but at that point nothing was dynamically unregistering commands from
the kdb shell.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Mon, 11 Oct 2010 15:20:14 +0000 (10:20 -0500)]
kdb,ftdump: Remove reference to internal kdb include
Now that include/linux/kdb.h properly exports all the functions
required to dynamically add a kdb shell command, the reference to the
private kdb header can be removed.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Mon, 11 Oct 2010 15:20:14 +0000 (10:20 -0500)]
kdb: Allow kernel loadable modules to add kdb shell functions
In order to allow kernel modules to dynamically add a command to the
kdb shell the kdb_register, kdb_register_repeat, kdb_unregister, and
kdb_printf need to be exported as GPL symbols.
Any kernel module that adds a dynamic kdb shell function should only
need to include linux/kdb.h.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Fri, 13 Aug 2010 17:44:04 +0000 (12:44 -0500)]
debug_core: stop rcu warnings on kernel resume
When returning from the kernel debugger reset the rcu jiffies_stall
value to prevent the rcu stall detector from sending NMI events which
invoke a stack dump for each cpu in the system.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Fri, 6 Aug 2010 16:47:14 +0000 (11:47 -0500)]
debug_core: move all watch dog syncs to a single function
Move the various clock and watch dog syncs to a single function in
advance of adding another sync for the rcu stall detector.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Wed, 20 Oct 2010 13:20:00 +0000 (08:20 -0500)]
x86,kgdb: fix debugger hw breakpoint test regression in 2.6.35
HW breakpoints events stopped working correctly with kgdb as a result
of commit:
018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (Merge commit
'v2.6.33' into perf/core), later commit:
ba773f7c510c0b252145933926c636c439889207 (x86,kgdb: Fix hw breakpoint
regression) allowed breakpoints to propagate to the debugger core but
did not completely address the original regression in functionality
found in 2.6.35.
When the DR_STEP flag is set in dr6 along with any of the DR_TRAP
bits, the kgdb exception handler will enter once from the
hw_breakpoint API call back and again from the die notifier for
do_debug(), which causes the debugger to stop twice and also for the
kgdb regression tests to fail running under kvm with:
echo V2I1 > /sys/module/kgdbts/parameters/kgdbts
To address the problem, the kgdb overflow handler needs to implement
the same logic as the ptrace overflow handler call back with respect
to updating the virtual copy of dr6. This will allow the kgdb
do_debug() die notifier to properly handle the exception and the
attached debugger, or kgdb test suite, will only receive a single
notification.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: x86@kernel.org
Linus Torvalds [Fri, 22 Oct 2010 18:23:42 +0000 (11:23 -0700)]
Merge branch 'urgent' of git://git./linux/kernel/git/brodo/pcmcia-2.6
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: fix ni_daq_700 compilation
pcmcia: IOCARD is also required for using IRQs
Linus Torvalds [Fri, 22 Oct 2010 18:17:06 +0000 (11:17 -0700)]
Merge git://git./linux/kernel/git/arnd/asm-generic
* git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic/io.h: allow people to override individual funcs
bitops: remove duplicated extern declarations
bitops: make asm-generic/bitops/find.h more generic
asm-generic: kdebug.h: Checkpatch cleanup
asm-generic: fcntl: make exported headers use strict posix types
asm-generic: cmpxchg does not handle non-long arguments
asm-generic: make atomic_add_unless a function
Linus Torvalds [Fri, 22 Oct 2010 17:52:56 +0000 (10:52 -0700)]
Merge branch 'llseek' of git://git./linux/kernel/git/arnd/bkl
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
vfs: make no_llseek the default
vfs: don't use BKL in default_llseek
llseek: automatically add .llseek fop
libfs: use generic_file_llseek for simple_attr
mac80211: disallow seeks in minstrel debug code
lirc: make chardev nonseekable
viotape: use noop_llseek
raw: use explicit llseek file operations
ibmasmfs: use generic_file_llseek
spufs: use llseek in all file operations
arm/omap: use generic_file_llseek in iommu_debug
lkdtm: use generic_file_llseek in debugfs
net/wireless: use generic_file_llseek in debugfs
drm: use noop_llseek
Linus Torvalds [Fri, 22 Oct 2010 17:52:01 +0000 (10:52 -0700)]
Merge branch 'vfs' of git://git./linux/kernel/git/arnd/bkl
* 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: (30 commits)
BKL: remove BKL from freevxfs
BKL: remove BKL from qnx4
autofs4: Only declare function when CONFIG_COMPAT is defined
autofs: Only declare function when CONFIG_COMPAT is defined
ncpfs: Lock socket in ncpfs while setting its callbacks
fs/locks.c: prepare for BKL removal
BKL: Remove BKL from ncpfs
BKL: Remove BKL from OCFS2
BKL: Remove BKL from squashfs
BKL: Remove BKL from jffs2
BKL: Remove BKL from ecryptfs
BKL: Remove BKL from afs
BKL: Remove BKL from USB gadgetfs
BKL: Remove BKL from autofs4
BKL: Remove BKL from isofs
BKL: Remove BKL from fat
BKL: Remove BKL from ext2 filesystem
BKL: Remove BKL from do_new_mount()
BKL: Remove BKL from cgroup
BKL: Remove BKL from NTFS
...
Linus Torvalds [Fri, 22 Oct 2010 17:49:54 +0000 (10:49 -0700)]
Merge branch 'trivial' of git://git./linux/kernel/git/arnd/bkl
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
block: autoconvert trivial BKL users to private mutex
drivers: autoconvert trivial BKL users to private mutex
ipmi: autoconvert trivial BKL users to private mutex
mac: autoconvert trivial BKL users to private mutex
mtd: autoconvert trivial BKL users to private mutex
scsi: autoconvert trivial BKL users to private mutex
Fix up trivial conflicts (due to addition of private mutex right next to
deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
Linus Torvalds [Fri, 22 Oct 2010 17:43:11 +0000 (10:43 -0700)]
Merge branch 'config' of git://git./linux/kernel/git/arnd/bkl
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
BKL: introduce CONFIG_BKL.
dabusb: remove the BKL
sunrpc: remove the big kernel lock
init/main.c: remove BKL notations
blktrace: remove the big kernel lock
rtmutex-tester: make it build without BKL
dvb-core: kill the big kernel lock
dvb/bt8xx: kill the big kernel lock
tlclk: remove big kernel lock
fix rawctl compat ioctls breakage on amd64 and itanic
uml: kill big kernel lock
parisc: remove big kernel lock
cris: autoconvert trivial BKL users
alpha: kill big kernel lock
isapnp: BKL removal
s390/block: kill the big kernel lock
hpet: kill BKL, add compat_ioctl
Dominik Brodowski [Fri, 22 Oct 2010 16:39:23 +0000 (18:39 +0200)]
pcmcia: fix ni_daq_700 compilation
Reported-by: Anca Emanuel <anca.emanuel@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Linus Torvalds [Fri, 22 Oct 2010 15:54:21 +0000 (08:54 -0700)]
Merge branch 'x86-irq-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, 32-bit: Align percpu area and irq stacks to THREAD_SIZE
x86: Move alloc_desk_mask variables inside ifdef
x86-32: Align IRQ stacks properly
x86: Remove CONFIG_4KSTACKS
x86: Always use irq stacks
Fixed up trivial conflicts in include/linux/{irq.h, percpu-defs.h}
Linus Torvalds [Fri, 22 Oct 2010 15:47:45 +0000 (08:47 -0700)]
Merge branch 'x86-timers-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Hpet: Avoid the comparator readback penalty
Alan Cox [Fri, 22 Oct 2010 13:11:26 +0000 (14:11 +0100)]
bluetooth: Fix missing NULL check
Fortunately this is only exploitable on very unusual hardware.
[Reported a while ago but nothing happened so just fixing it]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dominik Brodowski [Fri, 22 Oct 2010 06:46:36 +0000 (08:46 +0200)]
pcmcia: IOCARD is also required for using IRQs
Dave Hinds pointed out to me that
37979e1546a7 will break b43 and
ray_cs, as IOCARD is not -- as the name would suggest -- only needed
for cards using IO ports. Instead, as it re-deines several pins, it
is also required for using interrupts.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Linus Torvalds [Fri, 22 Oct 2010 04:19:54 +0000 (21:19 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
powerpc/44x: Update ppc44x_defconfig
powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
fsl_rio: Add comments for sRIO registers.
powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig
powerpc/fsl-booke: Add p5020 DS board support
powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips
powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes
powerpc/fsl-booke: Add support for FSL 64-bit e5500 core
powerpc/85xx: add cache-sram support
powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board
powerpc: Fix compile error with paca code on ppc64e
powerpc/fsl-booke: Add p3041 DS board support
oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt.
powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips
powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers
powerpc/fsl_booke: Add support to boot from core other than 0
powerpc/p1022: Add probing for individual DMA channels
powerpc/fsl_soc: Search all global-utilities nodes for rstccr
powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT
powerpc/mpc83xx: Support for MPC8308 P1M board
...
Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c
Linus Torvalds [Fri, 22 Oct 2010 02:03:38 +0000 (19:03 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (26 commits)
include/linux/libata.h: fix typo
pata_bf54x: fix return type of bfin_set_devctl
Drivers: ata: Makefile: replace the use of <module>-objs with <module>-y
libahci: fix result_tf handling after an ATA PIO data-in command
pata_sl82c105: implement sff_irq_check() method
pata_sil680: implement sff_irq_check() method
pata_pdc202xx_old: implement sff_irq_check() method
pata_cmd640: implement sff_irq_check() method
ata_piix: Add device ID for ICH4-L
pata_sil680: make sil680_sff_exec_command() 'static'
ata: Intel IDE-R support
libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds
libata: Signal that our SATL supports WRITE SAME(16) with UNMAP
ata_piix: remove SIDPR locking
libata: implement cross-port EH exclusion
libata: add @ap to ata_wait_register() and introduce ata_msleep()
ata_piix: implement LPM support
libata: implement LPM support for port multipliers
libata: reimplement link power management
libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global
...
Linus Torvalds [Fri, 22 Oct 2010 02:01:34 +0000 (19:01 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (48 commits)
ocfs2: Avoid to evaluate xattr block flags again.
ocfs2/cluster: Release debugfs file elapsed_time_in_ms
ocfs2: Add a mount option "coherency=*" to handle cluster coherency for O_DIRECT writes.
Initialize max_slots early
When I tried to compile I got the following warning: fs/ocfs2/slot_map.c: In function ‘ocfs2_init_slot_info’: fs/ocfs2/slot_map.c:360: warning: ‘bytes’ may be used uninitialized in this function fs/ocfs2/slot_map.c:360: note: ‘bytes’ was declared here Compiler: gcc version 4.4.3 (GCC) on Mandriva I'm not sure why this warning occurs, I think compiler don't know that variable "bytes" is initialized when it is sent by reference to ocfs2_slot_map_physical_size and it throws that ugly warning. However, a simple initialization of "bytes" variable with 0 will fix it.
ocfs2: validate bg_free_bits_count after update
ocfs2/cluster: Bump up dlm protocol to version 1.1
ocfs2/cluster: Show per region heartbeat elapsed time
ocfs2/cluster: Add mlogs for heartbeat up/down events
ocfs2/cluster: Create debugfs dir/files for each region
ocfs2/cluster: Create debugfs files for live, quorum and failed region bitmaps
ocfs2/cluster: Maintain bitmap of failed regions
ocfs2/cluster: Maintain bitmap of quorum regions
ocfs2/cluster: Track bitmap of live heartbeat regions
ocfs2/cluster: Track number of global heartbeat regions
ocfs2/cluster: Maintain live node bitmap per heartbeat region
ocfs2/cluster: Reorganize o2hb debugfs init
ocfs2/cluster: Check slots for unconfigured live nodes
ocfs2/cluster: Print messages when adding/removing nodes
ocfs2/cluster: Print messages when adding/removing heartbeat regions
...
Linus Torvalds [Fri, 22 Oct 2010 01:52:11 +0000 (18:52 -0700)]
Merge branch 'core-memblock-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (74 commits)
x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S
xen: Cope with unmapped pages when initializing kernel pagetable
memblock, bootmem: Round pfn properly for memory and reserved regions
memblock: Annotate memblock functions with __init_memblock
memblock: Allow memblock_init to be called early
memblock/arm: Fix memblock_region_is_memory() typo
x86, memblock: Remove __memblock_x86_find_in_range_size()
memblock: Fix wraparound in find_region()
x86-32, memblock: Make add_highpages honor early reserved ranges
x86, memblock: Fix crashkernel allocation
arm, memblock: Fix the sparsemem build
memblock: Fix section mismatch warnings
powerpc, memblock: Fix memblock API change fallout
memblock, microblaze: Fix memblock API change fallout
x86: Remove old bootmem code
x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
x86: Remove not used early_res code
x86, memblock: Replace e820_/_early string with memblock_
x86: Use memblock to replace early_res
x86, memblock: Use memblock_debug to control debug message print out
...
Fix up trivial conflicts in arch/x86/kernel/setup.c and kernel/Makefile
Andrea Gelmini [Sat, 16 Oct 2010 13:19:18 +0000 (15:19 +0200)]
include/linux/libata.h: fix typo
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mike Frysinger [Thu, 21 Oct 2010 08:00:40 +0000 (04:00 -0400)]
pata_bf54x: fix return type of bfin_set_devctl
The new devctl func added for us to the driver has the wrong return
type. Which is to say there shouldn't be any. This fixes compile
time warnings as there shouldn't be any runtime difference.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tracey Dent [Sat, 16 Oct 2010 03:41:33 +0000 (23:41 -0400)]
Drivers: ata: Makefile: replace the use of <module>-objs with <module>-y
Changed <module>-objs to <module>-y in Makefile.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Fri, 15 Oct 2010 09:00:08 +0000 (11:00 +0200)]
libahci: fix result_tf handling after an ATA PIO data-in command
ATA devices don't send D2H Reg FIS after an successful ATA PIO data-in
command. The host is supposed to take the TF and E_Status of the
preceding PIO Setup FIS. Update ahci_qc_fill_rtf() such that it takes
TF + E_Status from PIO Setup FIS after a successful ATA PIO data-in
command.
Without this patch, result_tf for such a command is filled with the
content of the previous D2H Reg FIS which belongs to a previous
command, which can make the command incorrectly seen as failed.
* Patch updated to grab the whole TF + E_Status from PIO Setup FIS
instead of just E_Status as suggested by Robert Hancock.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Mark Lord <kernel@teksavvy.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Fri, 8 Oct 2010 15:02:13 +0000 (19:02 +0400)]
pata_sl82c105: implement sff_irq_check() method
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Fri, 8 Oct 2010 15:01:08 +0000 (19:01 +0400)]
pata_sil680: implement sff_irq_check() method
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Fri, 8 Oct 2010 14:57:45 +0000 (18:57 +0400)]
pata_pdc202xx_old: implement sff_irq_check() method
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Fri, 8 Oct 2010 14:56:39 +0000 (18:56 +0400)]
pata_cmd640: implement sff_irq_check() method
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Ben Hutchings [Sun, 10 Oct 2010 21:42:21 +0000 (22:42 +0100)]
ata_piix: Add device ID for ICH4-L
ICH4-L is a variant of ICH4 lacking USB2 functionality and with some
different device IDs.
It is documented in Intel specification update 290745-025, currently
at <http://www.intel.com/assets/pdf/specupdate/290745.pdf>, and is
included in the device ID table for piix.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Tue, 5 Oct 2010 16:31:47 +0000 (20:31 +0400)]
pata_sil680: make sil680_sff_exec_command() 'static'
... since, of course, it's not used outside this driver.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Tue, 28 Sep 2010 12:19:38 +0000 (13:19 +0100)]
ata: Intel IDE-R support
Intel IDE-R devices are part of the Intel AMT management setup. They don't
have any special configuration registers or settings so the ata_generic
driver will support them fully.
Rather than add a huge table of IDs for each chipset and keep sending in
new ones this patch autodetects them.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Richard Kennedy [Fri, 10 Sep 2010 11:19:43 +0000 (12:19 +0100)]
libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds
Reorder structure ata_queued_cmd to remove 8 bytes of alignment padding
on 64 bit builds & therefore reduce the size of structure ata_port by
256 bytes.
Overall this will have little impact, other than reducing the amount of
memory that is cleared when allocating ata_ports.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Martin K. Petersen [Fri, 10 Sep 2010 05:23:18 +0000 (01:23 -0400)]
libata: Signal that our SATL supports WRITE SAME(16) with UNMAP
Until now identifying that a device supports WRITE SAME(16) with the
UNMAP bit set has been black magic. Implement support for the SBC-3
Thin Provisioning VPD page and set the TPWS bit.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 6 Sep 2010 15:57:40 +0000 (17:57 +0200)]
ata_piix: remove SIDPR locking
Now that libata provides proper cross-port EH exclusion. The SIDPR
locking added by commit
213373cf (ata_piix: fix locking around SIDPR
access) is no longer necessary. Remove it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 6 Sep 2010 15:57:14 +0000 (17:57 +0200)]
libata: implement cross-port EH exclusion
In libata, the non-EH code paths should always take and release
ap->lock explicitly when accessing hardware or shared data structures.
However, once EH is active, it's assumed that the port is owned by EH
and EH methods don't explicitly take ap->lock unless race from irq
handler or other code paths are expected. However, libata EH didn't
guarantee exclusion among EHs for ports of the same host. IOW,
multiple EHs may execute in parallel on multiple ports of the same
controller.
In many cases, especially in SATA, the ports are completely
independent of each other and this doesn't cause problems; however,
there are cases where different ports share the same resource, which
lead to obscure timing related bugs such as the one fixed by commit
213373cf (ata_piix: fix locking around SIDPR access).
This patch implements exclusion among EHs of the same host. When EH
begins, it acquires per-host EH ownership by calling ata_eh_acquire().
When EH finishes, the ownership is released by calling
ata_eh_release(). EH ownership is also released whenever the EH
thread goes to sleep from ata_msleep() or explicitly and reacquired
after waking up.
This ensures that while EH is actively accessing the hardware, it has
exclusive access to it while allowing EHs to interleave and progress
in parallel as they hit waiting stages, which dominate the time spent
in EH. This achieves cross-port EH exclusion without pervasive and
fragile changes while still allowing parallel EH for the most part.
This was first reported by yuanding02@gmail.com more than three years
ago in the following bugzilla. :-)
https://bugzilla.kernel.org/show_bug.cgi?id=8223
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reported-by: yuanding02@gmail.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 6 Sep 2010 15:56:29 +0000 (17:56 +0200)]
libata: add @ap to ata_wait_register() and introduce ata_msleep()
Add optional @ap argument to ata_wait_register() and replace msleep()
calls with ata_msleep() which take optional @ap in addition to the
duration. These will be used to implement EH exclusion.
This patch doesn't cause any behavior difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 1 Sep 2010 15:50:08 +0000 (17:50 +0200)]
ata_piix: implement LPM support
Now that DIPM can be used independently from HIPM, ata_piix can
support LPM too.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 1 Sep 2010 15:50:07 +0000 (17:50 +0200)]
libata: implement LPM support for port multipliers
Port multipliers can do DIPM on fan-out links fine. Implement support
for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and
fan-out links enter power save modes nicely.
SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices. Blacklisted.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 1 Sep 2010 15:50:06 +0000 (17:50 +0200)]
libata: reimplement link power management
The current LPM implementation has the following issues.
* Operation order isn't well thought-out. e.g. HIPM should be
configured after IPM in SControl is properly configured. Not the
other way around.
* Suspend/resume paths call ata_lpm_enable/disable() which must only
be called from EH context directly. Also, ata_lpm_enable/disable()
were called whether LPM was in use or not.
* Implementation is per-port when it should be per-link. As a result,
it can't be used for controllers with slave links or PMP.
* LPM state isn't managed consistently. After a link reset for
whatever reason including suspend/resume the actual LPM state would
be reset leaving ap->lpm_policy inconsistent.
* Generic/driver-specific logic boundary isn't clear. Currently,
libahci has to mangle stuff which libata EH proper should be
handling. This makes the implementation unnecessarily complex and
fragile.
* Tied to ALPM. Doesn't consider DIPM only cases and doesn't check
whether the device allows HIPM.
* Error handling isn't implemented.
Given the extent of mismatch with the rest of libata, I don't think
trying to fix it piecewise makes much sense. This patch reimplements
LPM support.
* The new implementation is per-link. The target policy is still
port-wide (ap->target_lpm_policy) but all the mechanisms and states
are per-link and integrate well with the rest of link abstraction
and can work with slave and PMP links.
* Core EH has proper control of LPM state. LPM state is reconfigured
when and only when reconfiguration is necessary. It makes sure that
LPM state is reset when probing for new device on the link.
Controller agnostic logic is now implemented in libata EH proper and
driver implementation only has to deal with controller specifics.
* Proper error handling. LPM config failure is attributed to the
device on the link and LPM is disabled for the link if it fails
repeatedly.
* ops->enable/disable_pm() are replaced with single ops->set_lpm()
which takes @policy and @hints. This simplifies driver specific
implementation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 1 Sep 2010 15:50:05 +0000 (17:50 +0200)]
libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global
Link power management is about to be reimplemented. Prepare for it.
* Implement sata_link_scr_lpm().
* Drop static from ata_dev_set_feature() and make it available to
other libata files.
* Trivial whitespace adjustments.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 1 Sep 2010 15:50:04 +0000 (17:50 +0200)]
libata: clean up lpm related symbols and sysfs show/store functions
Link power management related symbols are in confusing state w/ mixed
usages of lpm, ipm and pm. This patch cleans up lpm related symbols
and sysfs show/store functions as follows.
* lpm states - NOT_AVAILABLE, MIN_POWER, MAX_PERFORMANCE and
MEDIUM_POWER are renamed to ATA_LPM_UNKNOWN and
ATA_LPM_{MIN|MAX|MED}_POWER.
* Pre/postfixes are unified to lpm.
* sysfs show/store functions for link_power_management_policy were
curiously named get/put and unnecessarily complex. Renamed to
show/store and simplified.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Luck, Tony [Mon, 23 Aug 2010 20:18:02 +0000 (13:18 -0700)]
[libata] Fix section mismatch: ata_sff_exit
This build error showed up in linux-next tag next-
20100820 for ia64:
WARNING: vmlinux.o(.init.text+0x4a952): Section mismatch in reference from the function ata_init() to the function .exit.text:ata_sff_exit()
The function __init ata_init() references
a function __exit ata_sff_exit().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __exit annotation of
ata_sff_exit() so it may be used outside an exit section.
Sure enough, dropping the __exit fixes the problem.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jeff Garzik [Thu, 19 Aug 2010 20:11:32 +0000 (16:11 -0400)]
drivers/ata/libata-transport.c: include linux/slab.h
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Grant Grundler [Tue, 17 Aug 2010 17:56:53 +0000 (10:56 -0700)]
[libata] support for > 512 byte sectors (e.g. 4K Native)
This change enables my x86 machine to recognize and talk to a
"Native 4K" SATA device.
When I started working on this, I didn't know Matthew Wilcox had
posted a similar patch 2 years ago:
http://git.kernel.org/?p=linux/kernel/git/willy/ata.git;a=shortlog;h=refs/heads/ata-large-sectors
Gwendal Grignou pointed me at the the above code and small portions of
this patch include Matthew's work. That's why Mathew is first on the
"Signed-off-by:". I've NOT included his use of a bitmap to determine
512 vs Native for ATA command block size - just used a simple table.
And bugs are almost certainly mine.
Lastly, the patch has been tested with a native 4K 'Engineering
Sample' drive provided by Hitachi GST.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Grant Grundler <grundler@google.com>
Reviewed-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Fri, 25 Jun 2010 13:03:34 +0000 (15:03 +0200)]
libata: always use ata_qc_complete_multiple() for NCQ command completions
Currently, sata_fsl, mv and nv call ata_qc_complete() multiple times
from their interrupt handlers to indicate completion of NCQ commands.
This limits the visibility the libata core layer has into how commands
are being executed and completed, which is necessary to support IRQ
expecting in generic way. libata already has an interface to complete
multiple commands at once - ata_qc_complete_multiple() which ahci and
sata_sil24 already use.
This patch updates the three drivers to use ata_qc_complete_multiple()
too and updates comments on ata_qc_complete[_multiple]() regarding
their usages with NCQ completions. This change not only provides
better visibility into command execution to the core layer but also
simplifies low level drivers.
* sata_fsl: It already builds done_mask. Conversion is straight
forward.
* sata_mv: mv_process_crpb_response() no longer checks for illegal
completions, it just returns whether the tag is completed or not.
mv_process_crpb_entries() builds done_mask from it and passes it to
ata_qc_complete_multiple() which will check for illegal completions.
* sata_nv adma: Similar to sata_mv. nv_adma_check_cpb() now just
returns the tag status and nv_adma_interrupt() builds done_mask from
it and passes it to ata_qc_complete_multiple().
* sata_nv swncq: It already builds done_mask. Drop unnecessary
illegal transition checks and call ata_qc_complete_multiple().
In the long run, it might be a good idea to make ata_qc_complete()
whine if called when multiple NCQ commands are in flight.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ashish Kalra <ashish.kalra@freescale.com>
Cc: Saeed Bishara <saeed@marvell.com>
Cc: Mark Lord <liml@rtr.ca>
Cc: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Gwendal Grignou [Tue, 25 May 2010 19:31:38 +0000 (12:31 -0700)]
[libata] Add ATA transport class
This is a scheleton for libata transport class.
All information is read only, exporting information from libata:
- ata_port class: one per ATA port
- ata_link class: one per ATA port or 15 for SATA Port Multiplier
- ata_device class: up to 2 for PATA link, usually one for SATA.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Thu, 21 Oct 2010 23:42:32 +0000 (16:42 -0700)]
Merge branch 'devel' of /home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (278 commits)
arm: remove machine_desc.io_pg_offst and .phys_io
arm: use addruart macro to establish debug mappings
arm: return both physical and virtual addresses from addruart
arm/debug: consolidate addruart macros for CONFIG_DEBUG_ICEDCC
ARM: make struct machine_desc definition coherent with its comment
eukrea_mbimxsd-baseboard: Pass the correct GPIO to gpio_free
cpuimx27: fix compile when ULPI is selected
mach-pcm037_eet: fix compile errors
Fixing ethernet driver compilation error for i.MX31 ADS board
cpuimx51: update board support
mx5: add cpuimx51sd module and its baseboard
iomux-mx51: fix GPIO_1_xx 's IOMUX configuration
imx-esdhc: update devices registration
mx51: add resources for SD/MMC on i.MX51
iomux-mx51: fix SD1 and SD2's iomux configuration
clock-mx51: rename CLOCK1 to CLOCK_CCGR for better readability
clock-mx51: factorize clk_set_parent and clk_get_rate
eukrea_mbimxsd: add support for DVI displays
cpuimx25 & cpuimx35: fix OTG port registration in host mode
i.MX31 and i.MX35 : fix errate TLSbo65953 and ENGcm09472
...
Linus Torvalds [Thu, 21 Oct 2010 21:53:17 +0000 (14:53 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (26 commits)
PM / Wakeup: Show wakeup sources statistics in debugfs
PM: Introduce library for device-specific OPPs (v7)
PM: Add sysfs attr for rechecking dev hash from PM trace
PM: Lock PM device list mutex in show_dev_hash()
PM / Runtime: Remove idle notification after failing suspend
PM / Hibernate: Modify signature used to mark swap
PM / Runtime: Reduce code duplication in core helper functions
PM: Allow wakeup events to abort freezing of tasks
PM: runtime: add missed pm_request_autosuspend
PM / Hibernate: Make some boot messages look less scary
PM / Runtime: Implement autosuspend support
PM / Runtime: Add no_callbacks flag
PM / Runtime: Combine runtime PM entry points
PM / Runtime: Merge synchronous and async runtime routines
PM / Runtime: Replace boolean arguments with bitflags
PM / Runtime: Move code in drivers/base/power/runtime.c
sysfs: Add sysfs_merge_group() and sysfs_unmerge_group()
PM: Fix potential issue with failing asynchronous suspend
PM / Wakeup: Introduce wakeup source objects and event statistics (v3)
PM: Fix signed/unsigned warning in dpm_show_time()
...
Linus Torvalds [Thu, 21 Oct 2010 21:37:27 +0000 (14:37 -0700)]
Merge git://git./linux/kernel/git/dhowells/linux-2.6-irqflags
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags:
Fix IRQ flag handling naming
MIPS: Add missing #inclusions of <linux/irq.h>
smc91x: Add missing #inclusion of <linux/irq.h>
Drop a couple of unnecessary asm/system.h inclusions
SH: Add missing consts to sys_execve() declaration
Blackfin: Rename IRQ flags handling functions
Blackfin: Add missing dep to asm/irqflags.h
Blackfin: Rename DES PC2() symbol to avoid collision
Blackfin: Split the BF532 BFIN_*_FIO_FLAG() functions to their own header
Blackfin: Split PLL code from mach-specific cdef headers
Linus Torvalds [Thu, 21 Oct 2010 21:37:00 +0000 (14:37 -0700)]
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (53 commits)
spi/omap2_mcspi: Verify TX reg is empty after TX only xfer with DMA
spi/omap2_mcspi: disable channel after TX_ONLY transfer in PIO mode
spi/bfin_spi: namespace local structs
spi/bfin_spi: init early
spi/bfin_spi: check per-transfer bits_per_word
spi/bfin_spi: warn when CS is driven by hardware (CPHA=0)
spi/bfin_spi: cs should be always low when a new transfer begins
spi/bfin_spi: fix typo in comment
spi/bfin_spi: reject unsupported SPI modes
spi/bfin_spi: use dma_disable_irq_nosync() in irq handler
spi/bfin_spi: combine duplicate SPI_CTL read/write logic
spi/bfin_spi: reset ctl_reg bits when setup is run again on a device
spi/bfin_spi: push all size checks into the transfer function
spi/bfin_spi: use nosync when disabling the IRQ from the IRQ handler
spi/bfin_spi: sync hardware state before reprogramming everything
spi/bfin_spi: save/restore state when suspending/resuming
spi/bfin_spi: redo GPIO CS handling
Blackfin: SPI: expand SPI bitmasks
spi/bfin_spi: use the SPI namespaced bit names
spi/bfin_spi: drop extra memory we don't need
...
Linus Torvalds [Thu, 21 Oct 2010 21:27:18 +0000 (14:27 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Cannot use register_percpu_irq() from ia64_mca_init()
[IA64] Initialize interrupts later (from init_IRQ())
[IA64] enable ARCH_DMA_ADDR_T_64BIT
[IA64] ioc3_serial: release resources in error return path
[IA64] Stop using the deprecated __do_IRQ() code path
[IA64] Remove unnecessary casts of private_data in perfmon.c
[IA64] Fix missing iounmap in error path in cyclone.c
[IA64] salinfo: sema_init instead of init_MUTEX
[IA64] xen: use ARRAY_SIZE macro in xen_pv_ops.c
[IA64] Use static const char * const in palinfo.c
[IA64] remove asm/compat.h
[IA64] Add CONFIG_STACKTRACE_SUPPORT
[IA64] Move local_softirq_pending() definition
[IA64] iommu: Add a dummy iommu_table.h file in IA64.
[IA64] unwind - optimise linked-list searches for modules
[IA64] unwind: remove preprocesser noise, and correct comment
Linus Torvalds [Thu, 21 Oct 2010 21:25:16 +0000 (14:25 -0700)]
Merge git://git./linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (22 commits)
pcmcia: synclink_cs: fix information leak to userland
pcmcia: don't call flush_scheduled_work() spuriously
serial_cs: drop spurious flush_scheduled_work() call
pcmcia/yenta: guide users in case of problems with O2-bridges
pcmcia: fix unused function compile warning
pcmcia: vrc4173_cardu: Fix error path for pci_release_regions and pci_disable_device
pcmcia: add a few debug statements
pcmcia: remove obsolete and wrong comments
pcmcia: avoid messages on module (un)loading
pcmcia: move driver name to struct pcmcia_driver
pcmcia: remove the "Finally, report what we've done" message
pcmcia: use autoconfiguration feature for ioports and iomem
pcmcia: introduce autoconfiguration feature
pcmcia: Documentation update
pcmcia: convert pcmcia_request_configuration to pcmcia_enable_device
pcmcia: move config_{base,index,regs} to struct pcmcia_device
pcmcia: simplify IntType
pcmcia: simplify Status, ExtStatus register access
pcmcia: remove Pin, Copy configuration register access
pcmcia: move Vpp setup to struct pcmcia_device
...
Linus Torvalds [Thu, 21 Oct 2010 21:23:48 +0000 (14:23 -0700)]
Merge branch 'x86-iommu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, iommu: Update header comments with appropriate naming
ia64, iommu: Add a dummy iommu_table.h file in IA64.
x86, iommu: Fix IOMMU_INIT alignment rules
x86, doc: Adding comments about .iommu_table and its neighbors.
x86, iommu: Utilize the IOMMU_INIT macros functionality.
x86, VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_* macros.
x86, GART/AMD-VI: Make AMD GART and IOMMU use IOMMU_INIT_* macros.
x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros.
x86, xen-swiotlb: Make Xen-SWIOTLB use IOMMU_INIT_* macros.
x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros.
x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine.
x86, iommu: Add proper dependency sort routine (and sanity check).
x86, iommu: Make all IOMMU's detection routines return a value.
x86, iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table_entry structure
Linus Torvalds [Thu, 21 Oct 2010 21:11:46 +0000 (14:11 -0700)]
Merge branch 'irq-core-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (96 commits)
apic, x86: Use BIOS settings for IBS and MCE threshold interrupt LVT offsets
apic, x86: Check if EILVT APIC registers are available (AMD only)
x86: ioapic: Call free_irte only if interrupt remapping enabled
arm: Use ARCH_IRQ_INIT_FLAGS
genirq, ARM: Fix boot on ARM platforms
genirq: Fix CONFIG_GENIRQ_NO_DEPRECATED=y build
x86: Switch sparse_irq allocations to GFP_KERNEL
genirq: Switch sparse_irq allocator to GFP_KERNEL
genirq: Make sparse_lock a mutex
x86: lguest: Use new irq allocator
genirq: Remove the now unused sparse irq leftovers
genirq: Sanitize dynamic irq handling
genirq: Remove arch_init_chip_data()
x86: xen: Sanitise sparse_irq handling
x86: Use sane enumeration
x86: uv: Clean up the direct access to irq_desc
x86: Make io_apic.c local functions static
genirq: Remove irq_2_iommu
x86: Speed up the irq_remapped check in hot pathes
intr_remap: Simplify the code further
...
Fix up trivial conflicts in arch/x86/Kconfig
Linus Torvalds [Thu, 21 Oct 2010 21:08:08 +0000 (14:08 -0700)]
Merge branch 'timers-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
ntp: Clamp PLL update interval
Linus Torvalds [Thu, 21 Oct 2010 21:06:17 +0000 (14:06 -0700)]
Merge branch 'futexes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
futex: Fix kernel-doc notation & typos
futex: Add lock context annotations
futex: Mark restart_block.futex.uaddr[2] __user
futex: Change 3rd arg of fetch_robust_entry() to unsigned int*
Linus Torvalds [Thu, 21 Oct 2010 21:05:55 +0000 (14:05 -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:
futex: Fix errors in nested key ref-counting
Linus Torvalds [Thu, 21 Oct 2010 21:04:58 +0000 (14:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (21 commits)
EDAC, MCE: Fix shift warning on 32-bit
EDAC, MCE: Add a BIT_64() macro
EDAC, MCE: Enable MCE decoding on F12h
EDAC, MCE: Add F12h NB MCE decoder
EDAC, MCE: Add F12h IC MCE decoder
EDAC, MCE: Add F12h DC MCE decoder
EDAC, MCE: Add support for F11h MCEs
EDAC, MCE: Enable MCE decoding on F14h
EDAC, MCE: Fix FR MCEs decoding
EDAC, MCE: Complete NB MCE decoders
EDAC, MCE: Warn about LS MCEs on F14h
EDAC, MCE: Adjust IC decoders to F14h
EDAC, MCE: Adjust DC decoders to F14h
EDAC, MCE: Rename files
EDAC, MCE: Rework MCE injection
EDAC: Export edac sysfs class to users.
EDAC, MCE: Pass complete MCE info to decoders
EDAC, MCE: Sanitize error codes
EDAC, MCE: Remove unused function parameter
EDAC, MCE: Add HW_ERR prefix
...
Linus Torvalds [Thu, 21 Oct 2010 21:04:25 +0000 (14:04 -0700)]
Merge branch 'stable/swiotlb-0.9' of git://git./linux/kernel/git/konrad/swiotlb-2.6
* 'stable/swiotlb-0.9' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6:
swiotlb: Use page alignment for early buffer allocation
swiotlb: make io_tlb_overflow static
Linus Torvalds [Thu, 21 Oct 2010 21:04:03 +0000 (14:04 -0700)]
Merge branch 'stable/for-linus' of git://git./linux/kernel/git/konrad/ibft-2.6
* 'stable/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6:
ibft: fix kconfig dependencies
Linus Torvalds [Thu, 21 Oct 2010 20:54:05 +0000 (13:54 -0700)]
Merge branch 'x86-x2apic-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-x2apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, x2apic: Simplify apic init in SMP and UP builds
x86, intr-remap: Remove IRTE setup duplicate code
x86, intr-remap: Set redirection hint in the IRTE
Linus Torvalds [Thu, 21 Oct 2010 20:53:24 +0000 (13:53 -0700)]
Merge branch 'x86-vmware-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-vmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, paravirt: Remove alloc_pmd_clone hook, only used by VMI
x86, vmware: Remove deprecated VMI kernel support
Fix up trivial #include conflict in arch/x86/kernel/smpboot.c
Linus Torvalds [Thu, 21 Oct 2010 20:52:01 +0000 (13:52 -0700)]
Merge branch 'x86-olpc-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-olpc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, olpc: XO-1 uses/depends on PCI
x86, olpc: Register XO-1 platform devices
x86, olpc: Add XO-1 poweroff support
x86, olpc: Don't retry EC commands forever
x86, olpc: Rework BIOS signature check
x86, olpc: Only enable PCI configuration type override on XO-1
Linus Torvalds [Thu, 21 Oct 2010 20:51:41 +0000 (13:51 -0700)]
Merge branch 'x86-mtrr-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, mtrr: Support mtrr lookup for range spanning across MTRR range
x86, mtrr: Refactor MTRR type overlap check code
Linus Torvalds [Thu, 21 Oct 2010 20:47:54 +0000 (13:47 -0700)]
Merge branch 'x86-mrst-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: sfi: Make local functions static
x86, earlyprintk: Add hsu early console for Intel Medfield platform
x86, earlyprintk: Add earlyprintk for Intel Moorestown platform
x86: Add two helper macros for fixed address mapping
x86, mrst: A function in a header file needs to be marked "inline"
Linus Torvalds [Thu, 21 Oct 2010 20:47:29 +0000 (13:47 -0700)]
Merge branch 'x86-mm-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-32, percpu: Correct the ordering of the percpu readmostly section
x86, mm: Enable ARCH_DMA_ADDR_T_64BIT with X86_64 || HIGHMEM64G
x86: Spread tlb flush vector between nodes
percpu: Introduce a read-mostly percpu API
x86, mm: Fix incorrect data type in vmalloc_sync_all()
x86, mm: Hold mm->page_table_lock while doing vmalloc_sync
x86, mm: Fix bogus whitespace in sync_global_pgds()
x86-32: Fix sparse warning for the __PHYSICAL_MASK calculation
x86, mm: Add RESERVE_BRK_ARRAY() helper
mm, x86: Saving vmcore with non-lazy freeing of vmas
x86, kdump: Change copy_oldmem_page() to use cached addressing
x86, mm: fix uninitialized addr in kernel_physical_mapping_init()
x86, kmemcheck: Remove double test
x86, mm: Make spurious_fault check explicitly check the PRESENT bit
x86-64, mem: Update all PGDs for direct mapping and vmemmap mapping changes
x86, mm: Separate x86_64 vmalloc_sync_all() into separate functions
x86, mm: Avoid unnecessary TLB flush
Linus Torvalds [Thu, 21 Oct 2010 20:46:28 +0000 (13:46 -0700)]
Merge branch 'x86-mem-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-mem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, mem: Optimize memmove for small size and unaligned cases
x86, mem: Optimize memcpy by avoiding memory false dependece
x86, mem: Don't implement forward memmove() as memcpy()
Linus Torvalds [Thu, 21 Oct 2010 20:45:38 +0000 (13:45 -0700)]
Merge branch 'x86-idle-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hotplug: In the MWAIT case of play_dead, CLFLUSH the cache line
x86, hotplug: Move WBINVD back outside the play_dead loop
x86, hotplug: Use mwait to offline a processor, fix the legacy case
x86, mwait: Move mwait constants to a common header file
Linus Torvalds [Thu, 21 Oct 2010 20:34:32 +0000 (13:34 -0700)]
Merge branch 'x86-fpu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, fpu: Merge fpu_save_init()
x86-32, fpu: Rewrite fpu_save_init()
x86, fpu: Remove PSHUFB_XMM5_* macros
x86, fpu: Remove unnecessary ifdefs from i387 code.
x86-32, fpu: Remove math_emulate stub
x86-64, fpu: Simplify constraints for fxsave/fxtstor
x86-64, fpu: Fix %cs value in convert_from_fxsr()
x86-64, fpu: Disable preemption when using TS_USEDFPU
x86, fpu: Merge __save_init_fpu()
x86, fpu: Merge tolerant_fwait()
x86, fpu: Merge fpu_init()
x86: Use correct type for %cr4
x86, xsave: Disable xsave in i387 emulation mode
Fixed up fxsaveq-induced conflict in arch/x86/include/asm/i387.h
Linus Torvalds [Thu, 21 Oct 2010 20:20:32 +0000 (13:20 -0700)]
Merge branch 'x86-debug-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Remove pr_<level> uses of KERN_<level>
therm_throt.c: Trivial printk message fix for a unsuitable abbreviation of 'thermal'
x86: Use {push,pop}{l,q}_cfi in more places
i386: Add unwind directives to syscall ptregs stubs
x86-64: Use symbolics instead of raw numbers in entry_64.S
x86-64: Adjust frame type at paranoid_exit:
x86-64: Fix unwind annotations in syscall stubs
Linus Torvalds [Thu, 21 Oct 2010 20:18:36 +0000 (13:18 -0700)]
Merge branch 'x86-cpu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, cpu: Fix X86_FEATURE_NOPL
x86, cpu: Re-run get_cpu_cap() after adjusting the CPUID level
Linus Torvalds [Thu, 21 Oct 2010 20:18:06 +0000 (13:18 -0700)]
Merge branch 'x86-cleanups-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Remove stale pmtimer_64.c
x86, cleanups: Use clear_page/copy_page rather than memset/memcpy
x86: Remove unnecessary #ifdef ACPI/X86_IO_ACPI
x86, cleanup: Remove obsolete boot_cpu_id variable
Linus Torvalds [Thu, 21 Oct 2010 20:06:49 +0000 (13:06 -0700)]
Merge branch 'x86-bios-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-bios-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, bios: Make the x86 early memory reservation a kernel option
x86, bios: By default, reserve the low 64K for all BIOSes
Linus Torvalds [Thu, 21 Oct 2010 20:06:00 +0000 (13:06 -0700)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-64, asm: If the assembler supports fxsave64, use it
i386: Make kernel_execve() suitable for stack unwinding
Linus Torvalds [Thu, 21 Oct 2010 20:01:08 +0000 (13:01 -0700)]
Merge branch 'x86-amd-nb-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, amd_nb: Enable GART support for AMD family 0x15 CPUs
x86, amd: Use compute unit information to determine thread siblings
x86, amd: Extract compute unit information for AMD CPUs
x86, amd: Add support for CPUID topology extension of AMD CPUs
x86, nmi: Support NMI watchdog on newer AMD CPU families
x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs
x86, k8: Rename k8.[ch] to amd_nb.[ch] and CONFIG_K8_NB to CONFIG_AMD_NB
x86, k8-gart: Decouple handling of garts and northbridges
x86, cacheinfo: Fix dependency of AMD L3 CID
x86, kvm: add new AMD SVM feature bits
x86, cpu: Fix allowed CPUID bits for KVM guests
x86, cpu: Update AMD CPUID feature bits
x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit
x86, AMD: Remove needless CPU family check (for L3 cache info)
x86, tsc: Remove CPU frequency calibration on AMD
Linus Torvalds [Thu, 21 Oct 2010 19:55:43 +0000 (12:55 -0700)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (29 commits)
sched: Export account_system_vtime()
sched: Call tick_check_idle before __irq_enter
sched: Remove irq time from available CPU power
sched: Do not account irq time to current task
x86: Add IRQ_TIME_ACCOUNTING
sched: Add IRQ_TIME_ACCOUNTING, finer accounting of irq time
sched: Add a PF flag for ksoftirqd identification
sched: Consolidate account_system_vtime extern declaration
sched: Fix softirq time accounting
sched: Drop group_capacity to 1 only if local group has extra capacity
sched: Force balancing on newidle balance if local group has capacity
sched: Set group_imb only a task can be pulled from the busiest cpu
sched: Do not consider SCHED_IDLE tasks to be cache hot
sched: Drop all load weight manipulation for RT tasks
sched: Create special class for stop/migrate work
sched: Unindent labels
sched: Comment updates: fix default latency and granularity numbers
tracing/sched: Add sched_pi_setprio tracepoint
sched: Give CPU bound RT tasks preference
sched: Try not to migrate higher priority RT tasks
...
Linus Torvalds [Thu, 21 Oct 2010 19:54:49 +0000 (12:54 -0700)]
Merge branch 'perf-core-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (163 commits)
tracing: Fix compile issue for trace_sched_wakeup.c
[S390] hardirq: remove pointless header file includes
[IA64] Move local_softirq_pending() definition
perf, powerpc: Fix power_pmu_event_init to not use event->ctx
ftrace: Remove recursion between recordmcount and scripts/mod/empty
jump_label: Add COND_STMT(), reducer wrappery
perf: Optimize sw events
perf: Use jump_labels to optimize the scheduler hooks
jump_label: Add atomic_t interface
jump_label: Use more consistent naming
perf, hw_breakpoint: Fix crash in hw_breakpoint creation
perf: Find task before event alloc
perf: Fix task refcount bugs
perf: Fix group moving
irq_work: Add generic hardirq context callbacks
perf_events: Fix transaction recovery in group_sched_in()
perf_events: Fix bogus AMD64 generic TLB events
perf_events: Fix bogus context time tracking
tracing: Remove parent recording in latency tracer graph options
tracing: Use one prologue for the preempt irqs off tracer function tracers
...
Linus Torvalds [Thu, 21 Oct 2010 19:54:12 +0000 (12:54 -0700)]
Merge branch 'core-rcu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (52 commits)
sched: fix RCU lockdep splat from task_group()
rcu: using ACCESS_ONCE() to observe the jiffies_stall/rnp->qsmask value
sched: suppress RCU lockdep splat in task_fork_fair
net: suppress RCU lockdep false positive in sock_update_classid
rcu: move check from rcu_dereference_bh to rcu_read_lock_bh_held
rcu: Add advice to PROVE_RCU_REPEATEDLY kernel config parameter
rcu: Add tracing data to support queueing models
rcu: fix sparse errors in rcutorture.c
rcu: only one evaluation of arg in rcu_dereference_check() unless sparse
kernel: Remove undead ifdef CONFIG_DEBUG_LOCK_ALLOC
rcu: fix _oddness handling of verbose stall warnings
rcu: performance fixes to TINY_PREEMPT_RCU callback checking
rcu: upgrade stallwarn.txt documentation for CPU-bound RT processes
vhost: add __rcu annotations
rcu: add comment stating that list_empty() applies to RCU-protected lists
rcu: apply TINY_PREEMPT_RCU read-side speedup to TREE_PREEMPT_RCU
rcu: combine duplicate code, courtesy of CONFIG_PREEMPT_RCU
rcu: Upgrade srcu_read_lock() docbook about SRCU grace periods
rcu: document ways of stalling updates in low-memory situations
rcu: repair code-duplication FIXMEs
...
Linus Torvalds [Thu, 21 Oct 2010 19:49:31 +0000 (12:49 -0700)]
Merge branch 'core-locking-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
lockdep: Check the depth of subclass
lockdep: Add improved subclass caching
affs: Use sema_init instead of init_MUTEX
hfs: Convert tree_lock to mutex
arm: Bcmring: semaphore cleanup
printk: Make console_sem a semaphore not a pseudo mutex
drivers/macintosh/adb: Do not claim that the semaphore is a mutex
parport: Semaphore cleanup
irda: Semaphore cleanup
net: Wan/cosa.c: Convert "mutex" to semaphore
net: Ppp_async: semaphore cleanup
hamradio: Mkiss: semaphore cleanup
hamradio: 6pack: semaphore cleanup
net: 3c527: semaphore cleanup
input: Serio/hp_sdc: semaphore cleanup
input: Serio/hil_mlc: semaphore cleanup
input: Misc/hp_sdc_rtc: semaphore cleanup
lockup_detector: Make callback function static
lockup detector: Fix grammar by adding a missing "to" in the comments
lockdep: Remove __debug_show_held_locks
Linus Torvalds [Thu, 21 Oct 2010 19:49:15 +0000 (12:49 -0700)]
Merge branch 'core-iommu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86/amd-iommu: Update copyright headers
x86/amd-iommu: Reenable AMD IOMMU if it's mysteriously vanished over suspend
AGP: Warn when GATT memory cannot be set to UC
x86, GART: Disable GART table walk probes
x86, GART: Remove superfluous AMD64_GARTEN
Linus Torvalds [Thu, 21 Oct 2010 19:41:19 +0000 (12:41 -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: (26 commits)
selinux: include vmalloc.h for vmalloc_user
secmark: fix config problem when CONFIG_NF_CONNTRACK_SECMARK is not set
selinux: implement mmap on /selinux/policy
SELinux: allow userspace to read policy back out of the kernel
SELinux: drop useless (and incorrect) AVTAB_MAX_SIZE
SELinux: deterministic ordering of range transition rules
kernel: roundup should only reference arguments once
kernel: rounddown helper function
secmark: export secctx, drop secmark in procfs
conntrack: export lsm context rather than internal secid via netlink
security: secid_to_secctx returns len when data is NULL
secmark: make secmark object handling generic
secmark: do not return early if there was no error
AppArmor: Ensure the size of the copy is < the buffer allocated to hold it
TOMOYO: Print URL information before panic().
security: remove unused parameter from security_task_setscheduler()
tpm: change 'tpm_suspend_pcr' to be module parameter
selinux: fix up style problem on /selinux/status
selinux: change to new flag variable
selinux: really fix dependency causing parallel compile failure.
...
Linus Torvalds [Thu, 21 Oct 2010 19:40:33 +0000 (12:40 -0700)]
Merge branch 'virtio' of git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio_blk: remove BKL leftovers
virtio: console: Disable lseek(2) for port file operations
virtio: console: Send SIGIO in case of port unplug
virtio: console: Send SIGIO on new data arrival on ports
virtio: console: Send SIGIO to processes that request it for host events
virtio: console: Reference counting portdev structs is not needed
virtio: console: Add reference counting for port struct
virtio: console: Use cdev_alloc() instead of cdev_init()
virtio: console: Add a find_port_by_devt() function
virtio: console: Add a list of portdevs that are active
virtio: console: open: Use a common path for error handling
virtio: console: remove_port() should return void
virtio: console: Make write() return -ENODEV on hot-unplug
virtio: console: Make read() return -ENODEV on hot-unplug
virtio: console: Unblock poll on port hot-unplug
virtio: console: Un-block reads on chardev close
virtio: console: Check if portdev is valid in send_control_msg()
virtio: console: Remove control vq data only if using multiport support
virtio: console: Reset vdev before removing device
Linus Torvalds [Thu, 21 Oct 2010 19:39:53 +0000 (12:39 -0700)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (22 commits)
GFS2: fixed typo
GFS2: Fix type mapping for demote_rq interface
GFS2 fatal: filesystem consistency error on rename
GFS2: Improve journal allocation via sysfs
GFS2: Add "norecovery" mount option as a synonym for "spectator"
GFS2: Fix spectator umount issue
GFS2: Fix compiler warning from previous patch
GFS2: reserve more blocks for transactions
GFS2: Fix journal check for spectator mounts
GFS2: Remove upgrade mount option
GFS2: Remove localcaching mount option
GFS2: Remove ignore_local_fs mount argument
GFS2: Make . and .. qstrs constant
GFS2: Use new workqueue scheme
GFS2: Update handling of DLM return codes to match reality
GFS2: Don't enforce min hold time when two demotes occur in rapid succession
GFS2: Fix whitespace in previous patch
GFS2: fallocate support
GFS2: Add a bug trap in allocation code
GFS2: No longer experimental
...
Linus Torvalds [Thu, 21 Oct 2010 19:38:28 +0000 (12:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (22 commits)
ceph: do not carry i_lock for readdir from dcache
fs/ceph/xattr.c: Use kmemdup
rbd: passing wrong variable to bvec_kunmap_irq()
rbd: null vs ERR_PTR
ceph: fix num_pages_free accounting in pagelist
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl.
ceph: don't crash when passed bad mount options
ceph: fix debugfs warnings
block: rbd: removing unnecessary test
block: rbd: fixed may leaks
ceph: switch from BKL to lock_flocks()
ceph: preallocate flock state without locks held
ceph: add pagelist_reserve, pagelist_truncate, pagelist_set_cursor
ceph: use mapping->nrpages to determine if mapping is empty
ceph: only invalidate on check_caps if we actually have pages
ceph: do not hide .snap in root directory
rbd: introduce rados block device (rbd), based on libceph
ceph: factor out libceph from Ceph file system
ceph-rbd: osdc support for osd call and rollback operations
ceph: messenger and osdc changes for rbd
...
Linus Torvalds [Thu, 21 Oct 2010 19:33:45 +0000 (12:33 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/hch/hfsplus
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus: (29 commits)
hfsplus: fix getxattr return value
hfsplus: remove the unused hfsplus_kmap/hfsplus_kunmap helpers
hfsplus: create correct initial catalog entries for device files
hfsplus: remove superflous rootflags field in hfsplus_inode_info
hfsplus: fix link corruption
hfsplus: validate btree flags
hfsplus: handle more on-disk corruptions without oopsing
hfsplus: hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakage
hfsplus: fix oops on mount with corrupted btree extent records
hfsplus: fix rename over directories
hfsplus: convert tree_lock to mutex
hfsplus: add missing extent locking in hfsplus_write_inode
hfsplus: protect readdir against removals from open_dir_list
hfsplus: use atomic bitops for the superblock flags
hfsplus: add per-superblock lock for volume header updates
hfsplus: remove the rsrc_inodes list
hfsplus: do not cache and write next_alloc
hfsplus: fix error handling in hfsplus_symlink
hfsplus: merge mknod/mkdir/creat
hfsplus: clean up hfsplus_write_inode
...
Arnd Bergmann [Thu, 21 Oct 2010 13:58:01 +0000 (15:58 +0200)]
BKL: remove BKL from freevxfs
All uses of the BKL in freevxfs were the result of a pushdown into
code that doesn't really need it. As Christoph points out, this
is a read-only file system, which eliminates most of the races in
readdir/lookup.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@infradead.org>
Arnd Bergmann [Thu, 21 Oct 2010 13:53:15 +0000 (15:53 +0200)]
BKL: remove BKL from qnx4
All uses of the BKL in qnx4 were the result of a pushdown into
code that doesn't really need it. As Christoph points out, this
is a read-only file system, which eliminates most of the races in
readdir/lookup.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Anders Larsen <al@alarsen.net>
Cc: Christoph Hellwig <hch@infradead.org>
Vasiliy Kulikov [Sun, 17 Oct 2010 14:41:24 +0000 (18:41 +0400)]
pcmcia: synclink_cs: fix information leak to userland
Structure new_line is copied to userland with some padding fields unitialized.
It leads to leaking of stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
CC: stable@kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Arnd Bergmann [Sat, 11 Sep 2010 16:00:57 +0000 (18:00 +0200)]
BKL: introduce CONFIG_BKL.
With all the patches we have queued in the BKL removal tree, only a
few dozen modules are left that actually rely on the BKL, and even
there are lots of low-hanging fruit. We need to decide what to do
about them, this patch illustrates one of the options:
Every user of the BKL is marked as 'depends on BKL' in Kconfig,
and the CONFIG_BKL becomes a user-visible option. If it gets
disabled, no BKL using module can be built any more and the BKL
code itself is compiled out.
The one exception is file locking, which is practically always
enabled and does a 'select BKL' instead. This effectively forces
CONFIG_BKL to be enabled until we have solved the fs/lockd
mess and can apply the patch that removes the BKL from fs/locks.c.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Borislav Petkov [Fri, 15 Oct 2010 13:27:02 +0000 (15:27 +0200)]
EDAC, MCE: Fix shift warning on 32-bit
Fix
drivers/edac/mce_amd.c:262: warning: left shift count >= width of type
on 32-bit builds.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Fri, 15 Oct 2010 13:20:18 +0000 (15:20 +0200)]
EDAC, MCE: Add a BIT_64() macro
Add a macro for 64-bit vectors to use when accessing MSR contents.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Wed, 22 Sep 2010 14:12:03 +0000 (16:12 +0200)]
EDAC, MCE: Enable MCE decoding on F12h
Turn on MCE decoding on F12h.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Thu, 16 Sep 2010 15:36:12 +0000 (17:36 +0200)]
EDAC, MCE: Add F12h NB MCE decoder
F12h is completely covered by the generic path.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Thu, 16 Sep 2010 14:45:22 +0000 (16:45 +0200)]
EDAC, MCE: Add F12h IC MCE decoder
... which is the same as for K8 and F10h.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Thu, 16 Sep 2010 13:08:14 +0000 (15:08 +0200)]
EDAC, MCE: Add F12h DC MCE decoder
F12h DC MCE signatures are a subset of F10h's so reuse them.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Tue, 5 Oct 2010 17:07:16 +0000 (19:07 +0200)]
EDAC, MCE: Add support for F11h MCEs
F11h has almost the same MCE signatures as K8 except DRAM ECC and MC5
bank errors. Reuse functionality from the other families.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Mon, 6 Sep 2010 13:05:45 +0000 (15:05 +0200)]
EDAC, MCE: Enable MCE decoding on F14h
Now that all decoders have been taught about F14h, models < 0x10
MCEs, enable decoding on this family of CPUs. Also, issue a short
informational message upon boot that MCE decoding gets enabled.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Tue, 31 Aug 2010 16:38:24 +0000 (18:38 +0200)]
EDAC, MCE: Fix FR MCEs decoding
Those are N/A on K8, so don't decode them there.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Borislav Petkov [Tue, 31 Aug 2010 16:28:08 +0000 (18:28 +0200)]
EDAC, MCE: Complete NB MCE decoders
Add support for decoding F14h BU MCEs and improve decoding of the
remaining families.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>