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2005-12-12[PATCH] fbdev: Fix incorrect unaligned access in little-endian machinesAntonino A. Daplas
The drawing function cfbfillrect does not work correctly when access is not unsigned-long aligned. It manifests as extra lines of pixels that are not complete drawn. Reversing the shift operator solves the problem, so I would presume that this bug would manifest only on little endian machines. The function cfbcopyarea may also have this bug. Aligned access should present no problems. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] fbdev: fix switch to KD_TEXT, enhanced versionKnut Petersen
Every framebuffer driver relies on the assumption that the set_par() function of the driver is called before drawing functions and other functions dependent on the hardware state are executed. Whenever you switch from X to a framebuffer console for the very first time, there is a chance that a broken X system has _not_ set the mode to KD_GRAPHICS, thus the vt and framebuffer code executes a screen redraw and several other functions before a set_par() is executed. This is believed to be not a bug of linux but a bug of X/xdm. At least some X releases used by SuSE and Debian show this behaviour. There was a 2nd case, but that has been fixed by Antonino Daplas on 10-dec-2005. This patch allows drivers to set a flag to inform fbcon_switch() that they prefer a set_par() call on every console switch, working around the problems caused by the broken X releases. The flag will be used by the next release of cyblafb and might help other drivers that assume a hardware state different to the one used by X. As the default behaviour does not change, this patch should be acceptable to everybody. Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Acked-by: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] fbcon: Add ability to save/restore graphics stateAntonino A. Daplas
Add hooks to save and restore the graphics state. These hooks are called in fbcon_blank() when entering/leaving KD_GRAPHICS mode. This is needed by savagefb at least so it can cooperate with savage_dri and by cyblafb. State save/restoration can be full or partial. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2005-12-12Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-12-12[PATCH] broken cast in parport_pcDave Jones
Spotted by a Fedora user. Compiling with DEBUG_PARPORT set fails due to the broken cast. Just remove it. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] kprobes: increment kprobe missed count for multiprobesKeshavamurthy Anil S
When multiple probes are registered at the same address and if due to some recursion (probe getting triggered within a probe handler), we skip calling pre_handlers and just increment nmissed field. The below patch make sure it walks the list for multiple probes case. Without the below patch we get incorrect results of nmissed count for multiple probe case. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] kprobes: no probes on critical pathKeshavamurthy Anil S
For Kprobes critical path is the path from debug break exception handler till the control reaches kprobes exception code. No probes can be supported in this path as we will end up in recursion. This patch prevents this by moving the below function to safe __kprobes section onto which no probes can be inserted. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] V4L/DVB: (3151) I2C ID renamed to I2C_DRIVERID_INFRAREDMauro Carvalho Chehab
I2C ID renamed to I2C_DRIVERID_INFRARED Acked-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 4Mauro Carvalho Chehab
Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 3Mauro Carvalho Chehab
Clean up whitespaces at v4l/dvb files Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] inotify: add two inotify_add_watch flagsJohn McCutchan
The below patch lets userspace have more control over the inodes that inotify will watch. It introduces two new flags. IN_ONLYDIR -- only watch the inode if it is a directory. This is needed to avoid the race that can occur when we want to be sure that we are watching a directory. IN_DONT_FOLLOW -- don't follow a symlink. In combination with IN_ONLYDIR we can make sure that we don't watch the target of symlinks. The issues the flags fix came up when writing the gnome-vfs inotify backend. Default behaviour is unchanged. Signed-off-by: John McCutchan <ttb@tentacle.dhs.org> Acked-by: Robert Love <rml@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] add hlist_replace_rcu()Ingo Molnar
Add list_replace_rcu: replace old entry by new one. Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] Add timestamp field to process eventsMatt Helsley
This adds a timestamp field to the events sent via the process event connector. The timestamp allows listeners to accurately account the duration(s) between a process' events and offers strong means with which to determine the order of events with respect to a given task while also avoiding the addition of per-task data. This alters the size and layout of the event structure and hence would break compatibility if process events connector as it stands in 2.6.15-rc2 were released as a mainline kernel. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] Add getnstimestamp functionMatt Helsley
There are several functions that might seem appropriate for a timestamp: get_cycles() current_kernel_time() do_gettimeofday() <read jiffies/jiffies_64> Each has problems with combinations of SMP-safety, low resolution, and monotonicity. This patch adds a new function that returns a monotonic SMP-safe timestamp with nanosecond resolution where available. Changes: Split timestamp into separate patch Moved to kernel/time.c Renamed to getnstimestamp Fixed unintended-pointer-arithmetic bug Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] add rcu_barrier() synchronization pointDipankar Sarma
This introduces a new interface - rcu_barrier() which waits until all the RCUs queued until this call have been completed. Reiser4 needs this, because we do more than just freeing memory object in our RCU callback: we also remove it from the list hanging off super-block. This means, that before freeing reiser4-specific portion of super-block (during umount) we have to wait until all pending RCU callbacks are executed. The only change of reiser4 made to the original patch, is exporting of rcu_barrier(). Cc: Hans Reiser <reiser@namesys.com> Cc: Vladimir V. Saveliev <vs@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[IA64] Define an ia64 version of __raw_read_trylockKeith Owens
IA64 is using the generic version of __raw_read_trylock, which always waits for the lock to be free instead of returning when the lock is in use. Define an ia64 version of __raw_read_trylock which behaves correctly, and drop the generic one. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
2005-12-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
2005-12-11Remove (at least temporarily) the "incomplete PFN mapping" supportLinus Torvalds
With the previous commit, we can handle arbitrary shared re-mappings even without this complexity, and since the only known private mappings are for strange users of /dev/mem (which never create an incomplete one), there seems to be no reason to support it. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-09[PATCH] powerpc: Add missing icache flushes for hugepagesDavid Gibson
On most powerpc CPUs, the dcache and icache are not coherent so between writing and executing a page, the caches must be flushed. Userspace programs assume pages given to them by the kernel are icache clean, so we must do this flush between the kernel clearing a page and it being mapped into userspace for execute. We were not doing this for hugepages, this patch corrects the situation. We use the same lazy mechanism as we use for normal pages, delaying the flush until userspace actually attempts to execute from the page in question. Tested on G5. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-08[ARM] 3199/1: Remove bogus function prototype from arch-pxa/irq.hDeepak Saxena
Patch from Deepak Saxena This looks like a leftover from 2.4 days... Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-07[IA64] Fix missing parameter for local_add/subChristoph Lameter
Local add/sub macros need to have a parameter to specify the addend/subtrahend respectively. Signed-off-by: Christoph Lameter <clameter@sgi.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-06[IA64] Change SET_PERSONALITY to comply with comment in binfmt_elf.c.Robin Holt
We have a customer application which trips a bug. The problem arises when a driver attempts to call do_munmap on an area which is mapped, but because current->thread.task_size has been set to 0xC0000000, the call to do_munmap fails thinking it is an unmap beyond the user's address space. The comment in fs/binfmt_elf.c in load_elf_library() before the call to SET_PERSONALITY() indicates that task_size must not be changed for the running application until flush_thread, but is for ia64 executing ia32 binaries. This patch moves the setting of task_size from SET_PERSONALITY() to flush_thread() as indicated. The customer application no longer is able to trip the bug. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-06[IA64-SGI] altix: pci_window fixupJohn Keller
Altix only patch to add fixup code that sets up pci_controller->window. This code is a temporary fix until ACPI support on Altix is added. Also, corrects the usage of pci_dev->sysdata, which had previously been used to reference platform specific device info, to now point to a pci_controller struct. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-05[DECNET]: add memory buffer settings Steven Whitehouse
The patch (originally from Steve) simply adds memory buffer settings to DECnet similar to those in TCP. Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-05[ARM] 3194/1: add pfn_to_kaddr macro for ARM take2Hiroki Kaminaga
Patch from Hiroki Kaminaga This patch defines a new macro: pfn_to_kaddr(pfn). Same macro is already defined on other arch, such as i386. Signed-off-by: Hiroki Kaminaga <kaminaga@sm.sony.co.jp> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-05[ARM] 3191/1: Mark I/O pointer as const in __raw_reads[bwl]Deepak Saxena
Patch from Deepak Saxena Mark the ioremap'd cookie/pointer in said functions as const since we should not be actualy touching the data. This fixes a slew of compile warnings on IXP4xx as our reads[bwl] already mark this parameter as const. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-01Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-12-01Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
2005-12-01[PATCH] V4L: Add workaround for Hauppauge PVR150 with certain NTSC tuner modelsHans Verkuil
Add workaround for Hauppauge PVR150 hardware problem with tuner models 85, 99 and 112 (model numbers as reported by tveeprom). The audio standard autodetection does not always work correctly for these models. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-01[PATCH] V4L: Some funcions now static and I2C hw code for IRMauro Carvalho Chehab
- Some funcions are now declared as static - Added a I2C code for InfraRed. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-01[PATCH] V4L: tveeprom MAC address parsing/cleanupSteven Toth
- Added a mac address field to the tveeprom structure. - allow callers to query the MAC address. - removed some redundant eeprom parsing code in cx88-cards.c (specific to Hauppauge DVB products) Instead, placed calls directly to the single eeprom parsing function in tveeprom.c Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-01[ARM] sema_count() removalArthur Othieno
sema_count() defined only for ARM but not used anywhere. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-01[ARM SMP] Use event instructions for spinlocksRussell King
ARMv6K CPUs have SEV (send event) and WFE (wait for event) instructions which allow the CPU clock to be suspended until another CPU issues a SEV, rather than spinning on the lock wasting power. Make use of these instructions. Note that WFE does not wait if an event has been sent since the last WFE cleared the event status, so although it may look racy, the instruction implementation ensures that these are dealt with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-01[MIPS] Qemu: Qemu is emulating a 1193.182kHz i8254 PIC.Ralf Baechle
From Daniel Jacobowitz <dan@debian.org>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-11-30Revert "[PATCH] pci_ids.h: remove duplicate entries"Linus Torvalds
This reverts commit c9d6073fb3cda856132dd544d537679f9715436c. It was totally bogus. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-30VM: add "vm_insert_page()" functionLinus Torvalds
This is what a lot of drivers will actually want to use to insert individual pages into a user VMA. It doesn't have the old PageReserved restrictions of remap_pfn_range(), and it doesn't complain about partial remappings. The page you insert needs to be a nice clean kernel allocation, so you can't insert arbitrary page mappings with this, but that's not what people want. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29[PATCH] pci_ids.h: remove duplicate entriesGrant Coady
G'day Albert, Andrew, commit 4fb80634d30f5e639a92b78c8f215f96a61ba8c7 Author: Albert Lee <albertcc@tw.ibm.com> Date: Thu May 12 15:49:21 2005 -0400 duplicates symbols already appearing in pci_ids.h, appended patch removes them again :o) From: Grant Coady <gcoady@gmail.com> pci_ids: commit 4fb80634d30f5e639a92b78c8f215f96a61ba8c7 duplicated a couple existing symbols in pci_ids.h, remove them. Signed-off-by: Grant Coady <gcoady@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-29[PATCH] process events connector: uid_t gid_t size issuesMatt Helsley
The uid_t and gid_t fields appear to present a 32/64-bit userspace/kernel problem for some archs. This patch addresses the problem by fixing the size to the largest size for uid_t/gid_t used in the kernel. This preserves the total size of the event structure while ensuring that the layouts of the ID change event match in 32 and 64-bit kernels and applications. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29[ATM]: deregistration removes device from atm_devs list immediatelyStanislaw Gruszka
atm_dev_deregister() removes device from atm_dev list immediately to prevent operations on a phantom device. Decision to free device based only on ->refcnt now. Remove shutdown_atm_dev() use atm_dev_deregister() instead. atm_dev_deregister() also asynchronously releases all vccs related to device. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29[ATM]: linux/config.h only needed for #ifdef __KERNEL__ sectionChas Williams
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29[ATM]: atm_pcr_goal() doesn't modify its argument's contents -- mark it as constMitchell Blank Jr
Signed-off-by: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2005-11-29VM: add common helper function to create the page tablesLinus Torvalds
This logic was duplicated four times, for no good reason. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6Linus Torvalds
2005-11-29Support strange discontiguous PFN remappingsLinus Torvalds
These get created by some drivers that don't generally even want a pfn remapping at all, but would really mostly prefer to just map pages they've allocated individually instead. For now, create a helper function that turns such an incomplete PFN remapping call into a loop that does that explicit mapping. In the long run we almost certainly want to export a totally different interface for that, though. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29[MTD] CFI: Use 16-bit access to autoselect/read device id dataTodd Poynor
Recent models of Intel/Sharp and Spansion CFI flash now have significant bits in the upper byte of device ID codes, read via what Spansion calls "autoselect" and Intel calls "read device identifier". Currently these values are truncated to the low 8 bits in the mtd data structures, as all CFI read query info has previously been read one byte at a time. Add a new method for reading 16-bit info, currently just manufacturer and device codes; datasheets hint at future uses for upper bytes in other fields. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29[IA64] - Make pfn_valid more precise for SGI Altix systemsDean Roe
A single SGI Altix system can be divided into multiple partitions, each running their own instance of the Linux kernel. pfn_valid() is currently not optimal for any but the first partition, since it does not compare the pfn with min_low_pfn before calling the more costly ia64_pfn_valid(). Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-11-28Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds