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2007-05-02[PATCH] x86: Allow percpu variables to be page-alignedJeremy Fitzhardinge
Let's allow page-alignment in general for per-cpu data (wanted by Xen, and Ingo suggested KVM as well). Because larger alignments can use more room, we increase the max per-cpu memory to 64k rather than 32k: it's getting a little tight. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-04-28libata/IDE: remove combined mode quirkJeff Garzik
Both old-IDE and libata should be able handle all controllers and devices found using normal resource reservation methods. This eliminates the awful, low-performing split-driver configuration where old-IDE drove the PATA portion of a PCI device, in PIO-only mode, and libata drove the SATA portion of the /same/ PCI device, in DMA mode. Typically vendors would ship SATA hard drive / PATA optical configuration, which would lend itself to slow (PIO-only) CD-ROM performance. For Intel users running in combined mode, it is now wholly dependent on your driver choice (potentially link order, if you compile both drivers in) whether old-IDE or libata will drive your hardware. In either case, you will get full performance from both SATA and PATA ports now, without having to pass a kernel command line parameter. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[PARISC] clocksource: Move update_cr16_clocksource later in bootKyle McMartin
smp_cpus_done is too early for us... before we even do a device inventory! Move update_cr16_clocksource into the tail end of processor_probe() and stub it out on CONFIG_SMP=n builds. Verified that clocksource0 is properly updated to use jiffies on an SMP build. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26[PARISC] time: clocksource lost update_callbackKyle McMartin
So move the code to be called by smp_cpus_done, which is after we've figured out if there's more than one cpu actually present. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26[PARISC] time: Convert clocksource is_continuous to flagKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26[PARISC] clocksource_cr16: Use clocksource_change_rating()Kyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26[PARISC] Remove __read_mostly annotation from command_lineKyle McMartin
Who cares if it's in the read mostly section when it's going to be discarded anyway? Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits) [PARISC] Use symbolic last syscall in __NR_Linux_syscalls [PARISC] Add missing statfs64 and fstatfs64 syscalls Revert "[PARISC] Optimize TLB flush on SMP systems" [PARISC] Compat signal fixes for 64-bit parisc [PARISC] Reorder syscalls to match unistd.h Revert "[PATCH] make kernel/signal.c:kill_proc_info() static" [PARISC] fix sys_rt_sigqueueinfo [PARISC] fix section mismatch warnings in harmony sound driver [PARISC] do not export get_register/set_register [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code [PARISC] convert to use CONFIG_64BIT instead of __LP64__ [PARISC] use CONFIG_64BIT instead of __LP64__ [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro [PARISC] more ENTRY(), ENDPROC(), END() conversions [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc [PARISC] Fixes /proc/cpuinfo cache output on B160L [PARISC] implement standard ENTRY(), END() and ENDPROC() [PARISC] kill ENTRY_SYS_CPUS [PARISC] clean up debugging printks in smp.c [PARISC] factor syscall_restart code out of do_signal ... Fix conflict in include/linux/sched.h due to kill_proc_info() being made publicly available to PARISC again.
2007-02-21[PARISC] Add missing statfs64 and fstatfs64 syscallsGuy Martin
Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
2007-02-17Replace remaining references to "driverfs" with "sysfs".Robert P. J. Day
Globally, s/driverfs/sysfs/g. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-17[PARISC] Compat signal fixes for 64-bit pariscCarlos O'Donell Jr
In copy_siginfo_from_user32: Use compat_uptr_t. Use compat_ptr(). In copy_siginfo_to_user32: Use compat_int_t. Use ptr_to_compat(). The sigevent_t structure has a 64-bit si_ptr field that when copied to a 32-bit si_ptr will copy the wrong word. For the compat copy use the si_int field instead. Signed-off-by: Carlos O'Donell <carlos@systemhalted.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Reorder syscalls to match unistd.hCarlos O'Donell Jr
Move migrate_pages into the same position as specified in unistd.h. This fixes migrate_pages, pselect6 and ppoll syscalls. Signed-off-by: Carlos O'Donell <carlos@systemhalted.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] fix sys_rt_sigqueueinfoKyle McMartin
the parisc affecting portion of the patch was inadvertantly reverted a while ago. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] do not export get_register/set_registerHelge Deller
- noticed by Randolph Chung (tausq) Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation codeHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] use CONFIG_64BIT instead of __LP64__Helge Deller
- additionally update my copyright timestamps Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macroHelge Deller
- this macro unifies the code to add exception table entries - additionally use ENTRY()/ENDPROC() at more places Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] more ENTRY(), ENDPROC(), END() conversionsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Fixes /proc/cpuinfo cache output on B160LHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] implement standard ENTRY(), END() and ENDPROC()Helge Deller
Use the macros in entry.S Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] kill ENTRY_SYS_CPUSKyle McMartin
it's unlikely iCOD will ever happen on parisc-linux now... ;-) Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] clean up debugging printks in smp.cKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] factor syscall_restart code out of do_signalKyle McMartin
looks better this way... ;) Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] display parisc device modalias in sysfsKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] use less assembler statements in syscall pathHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Add TIF_RESTORE_SIGMASK supportKyle McMartin
And unmask the pselect6/ppoll system calls. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] detect recursive kernel crash earlierHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Convert soft power switch driver to kthreadHelge Deller
And remove it's reference in time.c. Allow lcd_print() to take a const char *. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] disable cr16 clocksource when multiple CPUs are onlineHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] GENERIC_TIME patchset for pariscHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] a and b in "break a,b" message were swappedHelge Deller
And clean up 32/64bit branch assembler statements Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] use fls_long in irq.cKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] add missing syscalls for vmsplice, move_pages, getcpu & epoll_pwaitHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] dump stack backtrace on BUG() and add syslog-levels to printk()sHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] whitespace cleanups and unify 32/64bit user-access assembler inlinesHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Generic BUGHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Fix show_stack() when we can't kmallocMatthew Wilcox
show_stack() was calling kzalloc() to allocate a struct pt_regs. This meant that *really* early stack dumps would cause a null pointer dereference. x86_64 allocates its pt_regs on the stack, so do the same. Kyle actually committed this exact patch to CVS on Wed Jul 26 14:32:39 2006 UTC, and never moved it across to git. Bad Kyle. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Remove sched.h from uaccess.h on pariscMatthew Wilcox
Al Viro did this for x86-64 and reduced the number of dependencies on sched.h significantly. We had a couple of files which were relying on uaccess.h pulling in sched.h, so they need explicit dependencies added. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17[PARISC] Clean up the cache and tlb headersRandolph Chung
No changes in functionality. Signed-off-by: Randolph Chung <tausq@debian.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17Merge branch 'parisc' from /home/kyle/repos/parisc-2.6.gitKyle McMartin
Conflicts: arch/parisc/hpux/sys_hpux.c arch/parisc/mm/ioremap.c
2007-02-12[PATCH] mark struct file_operations const 2Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Dynamic kernel command-line: fixupsAlon Bar-Lev
Remove in-source externs, linux/init.h is included in all cases. This is a fixups for "Dynamic kernel command-line" patch. It also includes some uml __init fixups so that we can __initdata also its command_line. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Dynamic kernel command-line: pariscAlon Bar-Lev
1. Rename saved_command_line into boot_command_line. 2. Set command_line as __initdata. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> 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>
2007-02-11[PATCH] Common compat_sys_sysinfoKyle McMartin
I noticed that almost all architectures implemented exactly the same sys32_sysinfo... except parisc, where a bug was to be found in handling of the uptime. So let's remove a whole whack of code for fun and profit. Cribbed compat_sys_sysinfo from x86_64's implementation, since I figured it would be the best tested. This patch incorporates Arnd's suggestion of not using set_fs/get_fs, but instead extracting out the common code from sys_sysinfo. Cc: Christoph Hellwig <hch@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Consolidate default sched_clock()Alexey Dobriyan
Use attribute(weak). Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] disable init/initramfs.c: architecturesJean-Paul Saman
Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs when CONFIG_BLK_DEV_INITRAMFS is not selected. This saves another 4 kbytes on most platfoms (some reserve PAGE_SIZE for initramfs). Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] optional ZONE_DMA: remove ZONE_DMA remains from pariscChristoph Lameter
Remove ZONE_DMA remains from parisc so that kernels are build without ZONE_DMA. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-11[PATCH] Change cpu_up and co from __devinit to __cpuinitGautham R Shenoy
Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n with CONFIG_RELOCATABLE = y generates the following modpost warnings WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up' This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are defined as __devinit AND __cpu_up calls some __cpuinit functions. Since __cpuinit would map to __init with this kind of a configuration, we get a .text refering .init.data warning. This patch solves the problem by converting all of __cpu_up, _cpu_up and cpu_up from __devinit to __cpuinit. The approach is justified since the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or are of __init type. Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would land up in .init section. Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1. Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13[PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-11[PARISC] Fix thinko in cpu_data.lock removalKyle McMartin
Need to remove the initializer as well. Doh. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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