Use jmp rather than call for the iret fixup, so its consistent with
the sysexit fixup, and it simplifies the stack (which is already
complex).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Mask MCE/MCA out of cpu caps. Its harmless to leave them there, but
it does prevent the kernel from starting an unnecessary thread.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
If an event comes in while events are currently being processed, then
just increment the counter and have the outer event loop reprocess the
pending events. This prevents unbounded recursion on heavy event
loads (of course massive event storms will cause infinite loops).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
retrigger_dynirq() was incomplete, and didn't properly set the event
to be pending again. It doesn't seem to actually get used.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Xen supports the notion of a debug interrupt which can be triggered
from the console. For now this is implemented to show pending events,
masks and each CPU's pending event set.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
64-bit Xen supports sysenter for 32-bit guests, so support its
use. (sysenter is faster than int $0x80 in 32-on-64.)
sysexit is still not supported, so we fake it up using iret.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
All pagetables need fundamentally the same setup and destruction, so
just use the same code for everything.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Make KERNEL_PGD_PTRS common, as previously it was only being defined
for 32-bit.
There are a couple of follow-on changes from this:
- KERNEL_PGD_PTRS was being defined in terms of USER_PGD_PTRS. The
definition of USER_PGD_PTRS doesn't really make much sense on x86-64,
since it can have two different user address-space configurations.
I renamed USER_PGD_PTRS to KERNEL_PGD_BOUNDARY, which is meaningful
for all of 32/32, 32/64 and 64/64 process configurations.
- USER_PTRS_PER_PGD was also defined and was being used for similar
purposes. Converting its users to KERNEL_PGD_BOUNDARY left it
completely unused, and so I removed it.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Xen's pte operations on mfns can be unified like the kernel's pfn operations.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
We can fold the essentially common pte functions together now.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
pte_t always contains a "pte" field for the whole pte value, so make
use of it.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Turn paravirt stubs into inline functions, so that the arguments are
still typechecked.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rename (alloc|release)_(pt|pd) to pte/pmd to explicitly match the name
of the appropriate pagetable level structure.
[ x86.git merge work by Mark McLoughlin <markmc@redhat.com> ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Common definitions for 3-level pagetable functions.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Common definitions for 2-level pagetable functions.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add a common arch/x86/mm/pgtable.c file for common pagetable functions.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Convert asm-x86/pgalloc_64.h from macros into functions (#include hell
prevents __*_free_tlb from being inline, but they're probably a bit
big to inline anyway).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()
[PATCH] proc_readfd_common() race fix
[PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()
[PATCH] teach seq_file to discard entries
[PATCH] umount_tree() will unhash everything itself
[PATCH] get rid of more nameidata passing in namespace.c
[PATCH] switch a bunch of LSM hooks from nameidata to path
[PATCH] lock exclusively in collect_mounts() and drop_collected_mounts()
[PATCH] move a bunch of declarations to fs/internal.h
Commit 884525655d ("PCI: clean up resource
alignment management") didn't set the alignment information for the
cardbus window resources, causing their subsequent allocations to fail
miserably with a message like
yenta_cardbus 0000:15:00.0: device not available because of BAR 7 [100:1ff] collisions
yenta_cardbus: probe of 0000:15:00.0 failed with error -16
or similar.
This fixes it and clarifies the code a bit too (we used to have to use
the insane PCI bridge alignment logic that put the alignment in the
"start" field, this makes it use the slightly easier-to-understand
size-based alignment, and allows us to set the resource start to zero
until it gets allocated).
Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Prevent bus_remove_device() from crashing if dev->knode_bus has not been
initialized before it's called.
This can happen if the device_add() ended up breaking out early due to
an error, for example.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Do not refuse to actually register children of suspended devices,
but still warn about attempts to do that.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The only reason to have separated __...() for those was to keep them inlined
for local users in exit.c. Since Alexey removed the inline on those, there's
no reason whatsoever to keep them around; just collapse with normal variants.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Since we drop the rcu_read_lock inside the loop, we can't assume
that files->fdt will remain unchanged (and not freed) between
iterations.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] run drivers/misc/sgi-xp through scripts/checkpatch.pl
[IA64] run rest drivers/misc/sgi-xp through scripts/Lindent
[IA64] run some drivers/misc/sgi-xp through scripts/Lindent
[IA64] move XP and XPC to drivers/misc/sgi-xp
[IA64] minor irq handler cleanups
[IA64] simplify notify hooks in mca.c
[IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchs
[IA64] disable interrupts on exit of ia64_trace_syscall
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
SELinux fixups needed for preemptable RCU from -rt
SELinux: no BUG_ON(!ss_initialized) in selinux_clone_mnt_opts
Addressed issues raised by scripts/checkpatch.pl. Removed unnecessary curly
braces. Eliminated uses of volatiles and use of kernel_thread() and daemonize().
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Move XPC and XPNET from arch/ia64/sn/kernel to drivers/misc/sgi-xp.
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c: Fix platform driver hotplug/coldplug
i2c: New driver for the SuperH Mobile I2C bus controller
i2c/scx200_acb: Don't use 0 as NULL pointer
i2c-bfin-twi: Fix mismatch in add timer and delete timer
i2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFIN
i2c-bfin-twi: Use simpler comment headers and strip out information that is maintained in the scm's log
i2c-bfin-twi: Cleanup driver descriptions, versions and some module useful information
i2c-bfin-twi: Add missing pin mux operation
i2c-bfin-twi: Add platform_resource interface to support multi-port TWI controllers
i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c master xfer operation
i2c: Remove trailing whitespaces in busses/Kconfig
i2c: Replace remaining __FUNCTION__ occurrences
i2c: Renesas SH7760 I2C master driver
i2c-dev: Split i2cdev_ioctl
i2c-ibm_iic: Support building as an of_platform driver
i2c-ibm_iic: Change the log levels
i2c: Add platform driver on top of the new pca-algorithm
i2c-algo-pca: Extend for future drivers
i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF
i2c: Remove the algorithm drivers from the config menu
Add missing kernel-doc in kernel/sched.c:
Warning(linux-2.6.25-git3//kernel/sched.c:7044): No description found for parameter 'span'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: linux/{dlm,dlm_device}.h: cleanup for userspace
dlm: common max length definitions
dlm: move plock code from gfs2
dlm: recover nodes that are removed and re-added
dlm: save master info after failed no-queue request
dlm: make dlm_print_rsb() static
dlm: match signedness between dlm_config_info and cluster_set
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Suppress hidinput for Samsung IR control
HID: remove 60x GTCO devices from blacklist
HID: export headers properly
HID: WiseGroup 866 Dual Joypad needs output reports quirk
HID: ThrustMaster FF driver is no longer experimental
HID: Logitech diNovo Mini pad support
HID: fix race between open() and disconnect() in usbhid
HID: make hid_input_field and usbhid_modify_dquirk static
HID: pass numbered reports properly to hidraw
HID: fix misplaced rdesc quirk
HID: force feedback driver for Logitech Rumblepad 2
HID: move wait from hid to usbhid
HID: make function from dbg_hid
HID: fix sparse warnings
HID: only dump report traffic with debug level 2
HID: patch to add NOGET for DMI/Acomdata
HID: Sunplus Wireless Desktop needs report descriptor fixup
HID: quirk for MS Wireless Desktop Receiver (model 1028)
HID: fixup fullspeed interval on highspeed Afatech DVB-T IR kbd
HID: fix build failure in hiddev_ioctl with gcc 3.2
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: (41 commits)
udf: use crc_itu_t from lib instead of udf_crc
udf: Fix compilation warnings when UDF debug is on
udf: Fix bug in VAT mapping code
udf: Add read-only support for 2.50 UDF media
udf: Fix handling of multisession media
udf: Mount filesystem read-only if it has pseudooverwrite partition
udf: Handle VAT packed inside inode properly
udf: Allow loading of VAT inode
udf: Fix detection of VAT version
udf: Silence warning about accesses beyond end of device
udf: Improve anchor block detection
udf: Cleanup anchor block detection.
udf: Move processing of virtual partitions
udf: Move filling of partition descriptor info into a separate function
udf: Improve error recovery on mount
udf: Cleanup volume descriptor sequence processing
udf: fix anchor point detection
udf: Remove declarations of arrays of size UDF_NAME_LEN (256 bytes)
udf: Remove checking of existence of filename in udf_add_entry()
udf: Mark udf_process_sequence() as noinline
...
While looking at the implementation of the Ram backed block device
driver, I stumbled across a write-only local variable, which makes
little sense, so I assume it should actually work like this:
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since 43cc71eed1, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable I2C platform drivers, to allow module auto loading.
[ db: add some more drivers ]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
