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2008-02-06FB/S3C2412: add S3C2412 support to S3C2410 fb driverBen Dooks
Add support for the S3C2412 to the S3C2410 frame buffer driver by ensuring that any moved registers can be dealt with. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06ps3: use symbolic names for video modesGeert Uytterhoeven
Use symbolic names for video modes Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06ps3av: ps3av_get_scanmode() and ps3av_get_refresh_rate() are unusedGeert Uytterhoeven
ps3av_get_scanmode() and ps3av_get_refresh_rate() are unused, so remove them Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06atmel_lcdfb: backlight controlDavid Brownell
On the sam9 EK boards, the LCD backlight is hooked up to a PWM output from the LCD controller. It's controlled by "contrast" registers though. This patch lets boards declare that they have that kind of backlight control. The driver can then export this control, letting screenblank and other operations actually take effect ... reducing the typically substantial power drain from the backlight. Note that it's not fully cooked - doesn't force backlight off during system suspend - the "power" and "blank" events may not be done right This should be easily added in the future. [nicolas.ferre@atmel.com: remove unneeded inline and rename functions] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06sm501fb: control panel pin usage with platform data flagsMagnus Damm
This patch makes it possible to control panel pins usage with flags passed from the platform data. Without this patch the sm501fb driver always controls the VBIASEN and FPEN pins. The polarity and use of these pins are very platform specific, so this patch introduces the flags SM501FB_FLAG_PANEL_USE_VBIASEN and SM501FB_FLAG_PANEL_USE_FPEN which enable the use of these pins. This patch is needed to support the a Sharp LQ104V1DG21 lcd panel on SuperH platforms such as R2D-1 and R2D-PLUS boards. Letting the sm501fb driver control the FPEN and VBIASEN pins like today just results in lcd panel flicker. Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06atmel_lcdfb: validate display timingsHaavard Skinnemoen
Setting a display timing parameter too high or too low may cause it to wrap around and thus become completely wrong. Validate the timings in atmel_lcdfb_check_var() and saturate to the highest or lowest possible value if necessary. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06gpio: rename pca953x symbolsGuennadi Liakhovetski
This second part of an extension to support more pca953x chips renames the C and Kconfig symbols. All affected files were updated by sed, except for a couple of obvious exceptions. It also updates the Kconfig helptext. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06gpio: rename pca9539 driverGuennadi Liakhovetski
First part of an extension to let the pca9539 driver support more chips, starting with pca9534, pca9535, pca9536, pca9537, and pca9538. This renames the files and modifies the Makefile. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06w1-gpio: add GPIO w1 bus master driverVille Syrjala
Add a GPIO 1-wire bus master driver. The driver used the GPIO API to control the wire and the GPIO pin can be specified using platform data similar to i2c-gpio. The driver was tested with AT91SAM9260 + DS2401. Signed-off-by: Ville Syrjala <syrjala@sci.fi> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06kprobes: kretprobe user entry-handlerAbhishek Sagar
Provide support to add an optional user defined callback to be run at function entry of a kretprobe'd function. Also modify the kprobe smoke tests to include an entry-handler during the kretprobe sanity test. Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Acked-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06spi: s3c drivers shouldn't care about spi_board_infoDavid Brownell
The two S3C SPI master drivers got merged without much review, so I just noticed that they're doing something that the SPI core code is responsible for, rather than any adapter driver: they try to register SPI devices. This removes that support from those drivers so they act normally. Interestingly, none of the current boards are affected. So it's a net code shrink with no loss of functionality. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06system timer: fix crash in <100Hz system timerDavid Fries
The kernel has a divide by zero crash when trying to run the system timer less than 100Hz. The problem is x/(HZ/USER_HZ) and related. Now x*(USER_HZ/HZ) will be used if HZ<USER_HZ. I'm running the Linux kernel under qemu and went to run a slower system timer to take less CPU (and battery) on the host. I found that the kernel paniced under emulation because of a divide by zero in three places. Here is the patch. The base git was updated today 01-05-2008. I went for a 20Hz system time by adding config HZ_20 etc to kernel/Kconfig.hz. With this patch I verified the system timer by looking at /proc/interrupts. [akpm@linux-foundation.org: partially clean up the macro maze] Signed-off-by: David Fries <david@fries.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06kernel/sys.c: get rid of expensive divides in groups_sort()Eric Dumazet
groups_sort() can be quite long if user loads a large gid table. This is because GROUP_AT(group_info, some_integer) uses an integer divide. So having to do XXX thousand divides during one syscall can lead to very high latencies. (NGROUPS_MAX=65536) In the past (25 Mar 2006), an analog problem was found in groups_search() (commit d74beb9f33a5f16d2965f11b275e401f225c949d ) and at that time I changed some variables to unsigned int. I believe that a more generic fix is to make sure NGROUPS_PER_BLOCK is unsigned. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06parport: add support for the Quatech SPPXP-100 Parallel port PCI ExpressCardLuís P Mendes
Added pci device id for the Quatech SPPXP-100 ExpressCard - 0x278 - to include/linux/pci_id.h Modified drivers/parport/parport_pc.c to support the Quatech SPPXP-100 Parallel port PCI ExpressCard [akpm@linux-foundation.org: build fix] Signed-off-by: Luís P Mendes <luis.p.mendes@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Add arch_ptrace_stopRoland McGrath
This adds support to allow asm/ptrace.h to define two new macros, arch_ptrace_stop_needed and arch_ptrace_stop. These control special machine-specific actions to be done before a ptrace stop. The new code compiles away to nothing when the new macros are not defined. This is the case on all machines to begin with. On ia64, these macros will be defined to solve the long-standing issue of ptrace vs register backing store. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Petr Tesarik <ptesarik@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Matthew Wilcox <willy@debian.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06drivers/isdn/i4l/isdn_tty.c: remove write_semDaniel Walker
I couldn't find any users, so removing it.. Signed-off-by: Daniel Walker <dwalker@mvista.com> Cc: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06drivers/char/tty_io.c: remove pty_semDaniel Walker
I couldn't find any users, so removing it.. Signed-off-by: Daniel Walker <dwalker@mvista.com> Acked-by: Alan Cox <alan@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Remove rcu_assign_pointer() penalty for NULL pointersPaul E. McKenney
The rcu_assign_pointer() primitive currently unconditionally executes a memory barrier, even when a NULL pointer is being assigned. This has lead some to avoid using rcu_assign_pointer() for NULL pointers, which loses the self-documenting advantages of rcu_assign_pointer() This patch uses __builtin_const_p() to omit needless memory barriers for NULL-pointer assignments at compile time with no runtime penalty, as discussed in the following thread: http://www.mail-archive.com/netdev@vger.kernel.org/msg54852.html Tested on x86_64 and ppc64, also compiled the four cases (NULL/non-NULL and const/non-const) with gcc version 4.1.2, and hand-checked the assembly output. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Fix __const_udelay declaration and definition mismatchesJeff Dike
The declaration and implementation of __const_udelay use different names for the parameter on a number of architectures: include/asm-avr32/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/avr32/lib/delay.c:39:inline void __const_udelay(unsigned long xloops) include/asm-sh/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/sh/lib/delay.c:22:inline void __const_udelay(unsigned long xloops) include/asm-m32r/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/m32r/lib/delay.c:58:void __const_udelay(unsigned long xloops) include/asm-x86/delay.h:16:extern void __const_udelay(unsigned long usecs); arch/x86/lib/delay_32.c:82:inline void __const_udelay(unsigned long xloops) arch/x86/lib/delay_64.c:46:inline void __const_udelay(unsigned long xloops) The units of the parameter isn't usecs, so that name is definitely wrong. It's also not exactly loops, so I suppose xloops is an OK name. This patch changes these names from usecs to xloops. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06get rid of NR_OPEN and introduce a sysctl_nr_openEric Dumazet
NR_OPEN (historically set to 1024*1024) actually forbids processes to open more than 1024*1024 handles. Unfortunatly some production servers hit the not so 'ridiculously high value' of 1024*1024 file descriptors per process. Changing NR_OPEN is not considered safe because of vmalloc space potential exhaust. This patch introduces a new sysctl (/proc/sys/fs/nr_open) wich defaults to 1024*1024, so that admins can decide to change this limit if their workload needs it. [akpm@linux-foundation.org: export it for sparc64] Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: "David S. Miller" <davem@davemloft.net> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06inotify: send IN_ATTRIB events when link count changesJan Kara
Currently, no notification event has been sent when inode's link count changed. This is inconvenient for the application in some cases: Suppose you have the following directory structure foo/test bar/ and you watch test. If someone does "mv foo/test bar/", you get event IN_MOVE_SELF and you know something has happened with the file "test". However if someone does "ln foo/test bar/test" and "rm foo/test" you get no inotify event for the file "test" (only directories "foo" and "bar" receive events). Furthermore it could be argued that link count belongs to file's metadata and thus IN_ATTRIB should be sent when it changes. The following patch implements sending of IN_ATTRIB inotify events when link count of the inode changes, i.e., when a hardlink to the inode is created or when it is removed. This event is sent in addition to all the events sent so far. In particular, when a last link to a file is removed, IN_ATTRIB event is sent in addition to IN_DELETE_SELF event. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Morten Welinder <mwelinder@gmail.com> Cc: Robert Love <rlove@google.com> Cc: John McCutchan <ttb@tentacle.dhs.org> Cc: Steven French <sfrench@us.ibm.com> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06fs: use list_for_each_entry_reverse and kill sb_entryAkinobu Mita
Use list_for_each_entry_reverse for super_blocks list and remove unused sb_entry macro. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Avoid divide in IS_ALIGNHerbert Xu
I was happy to discover the brand new IS_ALIGN macro and quickly used it in my code. To my dismay I found that the generated code used division to perform the test. This patch fixes it by changing the % test to an &. This avoids the division. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06PERCPU : __percpu_alloc_mask() can dynamically size percpu_data storageEric Dumazet
Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data, we can use nr_cpu_ids, which is generally < NR_CPUS. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Christoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Document I_SYNC and I_DATASYNCJoern Engel
After some archeology (see http://logfs.org/logfs/inode_state_bits) I finally figured out what the three I_DIRTY bits do. Maybe others would prefer less effort to reach this insight. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06fs: remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbolJiri Olsa
Remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbol. Signed-off-by: Jiri Olsa <olsajiri@gmail.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06log2.h: Define order_base_2() macro for convenience.Robert P. J. Day
Given a number of places in the tree that need to calculate this value explicitly, might as well just create a macro for it. (akpm: must be implemented as a macro for callee typeof() usage) Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06proper prototype for vty_init()Adrian Bunk
Add a proper prototype for vty_init() in include/linux/vt_kern.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06proper prototype for get_filesystem_list()Adrian Bunk
Ad a proper prototype for migration_init() in include/linux/fs.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06proper prototype for signals_init()Adrian Bunk
Add a proper prototype for signals_init() in include/linux/signal.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06read_current_timer() cleanupsAndrew Morton
- All implementations can be __devinit - The function prototypes were in asm/timex.h but they all must be the same, so create a single declaration in linux/timex.h. - uninline the sparc64 version to match the other architectures - Don't bother #defining ARCH_HAS_READ_CURRENT_TIMER to a particular value. [ezk@cs.sunysb.edu: fix build] Cc: "David S. Miller" <davem@davemloft.net> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06scheduled OSS driver removalAdrian Bunk
This patch contains the scheduled removal of OSS drivers whose config options have been removed in 2.6.23. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06proper show_interrupts() prototypeAdrian Bunk
Add a proper prototype for show_interrupts() in include/linux/interrupt.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06remove mm_{ptov,vtop}()Adrian Bunk
This patch removes the unused mm_{ptov,vtop}(). Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Bryan Wu <bryan.wu@analog.com> Cc: Miles Bader <miles.bader@necel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06cleanup after APUS removalAdrian Bunk
After the APUS removal, some code can be removed. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Karsten Keil <kkeil@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Allow auto-destruction of loop devicesDavid Woodhouse
This allows a flag to be set on loop devices so that when they are closed for the last time, they'll self-destruct. In general, so that we can automatically allocate loop devices (as with losetup -f) and have them disappear when we're done with them. In particular, right now, so that we can stop relying on the hackish special-case in umount(8) which kills off loop devices which were set up by 'mount -oloop'. That means we can stop putting crap in /etc/mtab which doesn't belong there, which means it can be a symlink to /proc/mounts, which means yet another writable file on the root filesystem is eliminated and the 'stateless' folks get happier... and OLPC trac #356 can be closed. The mount(8) side of that is at http://marc.info/?l=util-linux-ng&m=119362955431694&w=2 [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Bernardo Innocenti <bernie@codewiz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06remove support for un-needed _extratext sectionRobin Getz
When passing a zero address to kallsyms_lookup(), the kernel thought it was a valid kernel address, even if it is not. This is because is_ksym_addr() called is_kernel_extratext() and checked against labels that don't exist on many archs (which default as zero). Since PPC was the only kernel which defines _extra_text, (in 2005), and no longer needs it, this patch removes _extra_text support. For some history (provided by Jon): http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019734.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019736.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019751.html [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jon Loeliger <jdl@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06Parallel port: convert port_mutex to the mutex APIMatthias Kaehlcke
Parallel port: Convert port_mutex to the mutex API [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06hash: add explicit u32 and u64 versions of hashMatthew Wilcox
The 32-bit version is more efficient (and apparently gives better hash results than the 64-bit version), so users who are only hashing a 32-bit quantity can now opt to use the 32-bit version explicitly, rather than promoting to a long. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06taskstats scaled time cleanupMichael Neuling
This moves the ability to scale cputime into generic code. This allows us to fix the issue in kernel/timer.c (noticed by Balbir) where we could only add an unscaled value to the scaled utime/stime. This adds a cputime_to_scaled function. As before, the POWERPC version does the scaling based on the last SPURR/PURR ratio calculated. The generic and s390 (only other arch to implement asm/cputime.h) versions are both NOPs. Also moves the SPURR and PURR snapshots closer. Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: Jay Lan <jlan@engr.sgi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06async_tx: allow architecture specific async_tx_find_channel implementationsDan Williams
The source and destination addresses are included to allow channel selection based on address alignment. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2008-02-06async_tx: replace 'int_en' with operation preparation flagsDan Williams
Pass a full set of flags to drivers' per-operation 'prep' routines. Currently the only flag passed is DMA_PREP_INTERRUPT. The expectation is that arch-specific async_tx_find_channel() implementations can exploit this capability to find the best channel for an operation. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com> Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2008-02-06async_tx: kill tx_set_src and tx_set_dest methodsDan Williams
The tx_set_src and tx_set_dest methods were originally implemented to allow an array of addresses to be passed down from async_xor to the dmaengine driver while minimizing stack overhead. Removing these methods allows drivers to have all transaction parameters available at 'prep' time, saves two function pointers in struct dma_async_tx_descriptor, and reduces the number of indirect branches.. A consequence of moving this data to the 'prep' routine is that multi-source routines like async_xor need temporary storage to convert an array of linear addresses into an array of dma addresses. In order to keep the same stack footprint of the previous implementation the input array is reused as storage for the dma addresses. This requires that sizeof(dma_addr_t) be less than or equal to sizeof(void *). As a consequence CONFIG_DMADEVICES now depends on !CONFIG_HIGHMEM64G. It also requires that drivers be able to make descriptor resources available when the 'prep' routine is polled. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com>
2008-02-06async_tx: kill ASYNC_TX_ASSUME_COHERENTDan Williams
Remove the unused ASYNC_TX_ASSUME_COHERENT flag. Async_tx is meant to hide the difference between asynchronous hardware and synchronous software operations, this flag requires clients to understand cache coherency consequences of the async path. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2008-02-06[SPARC64]: Temporarily remove IOMMU merging code.David S. Miller
Changeset fde6a3c82d67f592eb587be4d12222b0ae6d4321 ("iommu sg merging: sparc64: make iommu respect the segment size limits") broke sparc64 because whilst it added the segment limiting code to the first pass of SG mapping (in prepare_sg()) it did not add matching code to the second pass handling (in fill_sg()) As a result the two passes disagree where the segment boundaries should be, resulting in OOPSes, DMA corruption, and corrupted superblocks. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-06[SPARC]: Add new timerfd syscall entries.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-06libata: kill now unused n_iter and fix sata_fslJames Bottomley
qc->n_iter was used for libata's own sg walking before sg chaining replaced it. During conversion, the field and its usage in sata_fsl were left behind. Kill the filed and update sata_fsl. tj: This was part of James's libata-use-block-layer-padding patch. Separated out by me. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-02-06sata_mv: Support SoC controllersSaeed Bishara
Marvell's Orion SoC includes SATA controllers based on Marvell's PCI-to-SATA 88SX controllers. This patch extends the libATA sata_mv driver to support those controllers. [edited to use linux/ata_platform.h -jg] Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-02-06Rename: linux/pata_platform.h to linux/ata_platform.hJeff Garzik
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-02-06Merge branch 'upstream-davem' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
generated by cgit (git 2.34.1) at 2025-09-13 21:38:24 +0000