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2008-05-12Make 'cond_resched()' nullification depend on PREEMPT_BKLLinus Torvalds
Because it's not correct with a non-preemptable BKL and just causes PREEMPT kernels to have longer latencies than non-PREEMPT ones (which is obviously not the point of it at all). Of course, that config option actually got removed as an option earlier, so for now this basically disables it entirely, but if BKL preemption is ever resurrected it will be a meaningful optimization. And in the meantime, it at least documents the intent of the code, while not doing the wrong thing. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-12Fix up 'need_resched()' definitionLinus Torvalds
We should not go through the task pointer to get at the thread info, since it's usually cheaper to just access the thread info directly. So don't make the code look up 'current', when we can just use the thread info accessor functions directly. This generally avoids one level of indirection and tends to work better together with code that also looks at other thread flags (eg preempt_count). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-inttypesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-inttypes: types: s390: fix #ifdef reversal in <asm-s390/types.h>
2008-05-12Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (28 commits) [MIPS] Pb1000: bury the remnants of the PCI code [MIPS] Fix build failure in mips oprofile code [MIPS] fix warning message on SMP kernels [MIPS] markeins: build fix [MIPS] ELF handling - use SELFMAG instead of numeric constant [MIPS] Get rid of __ilog2 [MIPS] Fix __fls for non-MIPS32/MIPS64 cpus [MIPS] XXS1500 code style cleanup [MIPS] MTX-1 code style cleanup [MIPS] Pb1200/DBAu1200 code style cleanup [MIPS] Pb1550 code style cleanup [MIPS] Pb1500 code style cleanup [MIPS] Pb1100 code style cleanup [MIPS] Pb1000 code style cleanup [MIPS] DBAu1xx0 code style cleanup [MIPS] Alchemy PCI code style cleanup [MIPS] Alchemy common code style cleanup [MIPS] Alchemy common headers style cleanup [MIPS] Add empty argument parenthesis to GCC_IMM_ASM [MIPS] msp_hwbutton.c: minor irq handler cleanups ...
2008-05-12types: s390: fix #ifdef reversal in <asm-s390/types.h>H. Peter Anvin
The #ifdef for the integer types was reversed; the standard pattern in these files are: #ifndef __s390x__ /* 32-bit code */ #else /* 64-bit code */ #endif Stick with the original pattern, but make sure the 32-bit code actually comes first! Reported by Al Viro. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Al Viro <viro@zeniv.linux.org.uk>
2008-05-12[MIPS] Get rid of __ilog2Ralf Baechle
56a6b1eb7bfb5ace0b5cb9c149f502fbd101b8ab was a bit too conservative and left __ilog2 around which is only used as an internal function for other bitops. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Fix __fls for non-MIPS32/MIPS64 cpusThomas Bogendoerfer
Only MIPS32 and MIPS64 CPUs implement clz/dclz. Therefore don't export __ilog2() for non MIPS32/MIPS64 cpus and use generic __fls bitop code for these cpus. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Pb1200/DBAu1200 code style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - use of C99 // comments; - initialization of a 'static' variable to 0; - space after opening and before closing parentheses; - missing space between 'for' and opening parenthesis; - macros with complex values not enclosed in parentheses; - printk() without KERN_* facility level; - unnecessary braces for single-statement block; - using simple_strtol() where strict_strtol() could be used; - line over 80 characters. In addition to these changes, also do the following: - mention DBAu1200 board in the Makefile; - replace the group of #include/#ifdef directives by a single #include <au1xxx.h> since this header contains the needed stuff; - properly indent the blocks; - insert spaces between operator and its operands, remove excess spaces there; - remove needless parentheses and add some for clarity; - replace numeric literals/expressions with the matching macros; - remove space after the type cast's closing parenthesis; - reduce pb1200_setup_cascade() to the single 'return' statement; - reduce the number of printed empty lines in the so-called CPLD workaround; - remove #undef AU1X00_EXTERNAL_INT since that macro is not defined anywhere; - replace spaces after the macro name with tabs in the #define directives; - remove excess tabs after the macro name in the #define directives; - fix typo in the BCSR_RESETS_PWMR1mUX macro's name; - group all Pb1200 PCMCIA definitions together; - put the function's result type and name/parameters on the same line; - insert missing and remove excess new lines; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first line and/or adding space/asterisk on their left side; - fix typos/errors, capitalize acronyms, etc. in the comments; - combine some comments; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Pb1550 code style cleanupSergei Shtylyov
Fix a few errors and warnings given by checkpatch.pl: - macros with complex values not enclosed in parentheses; - printk() without KERN_* facility level; - unnecessary braces for single-statement block; - using simple_strtol() where strict_strtol() could be used. In addition to these changes, also do the following: - replace numeric literals with the matching macros; - properly indent the code and the array initializers; - insert spaces between operator and its operands, also remove excess spaces there; - remove space after the type cast's closing parenthesis; - insert missing space before closing brace in the array initializers; - replace spaces after the macro name with tabs in the #define directives, also sometimes insert space there for better looks; - remove excess tabs after the macro name in the #define directives; - fix typos/errors, capitalize acronyms, etc. in the comments; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first line; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Pb1500 code style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - use of C99 // comments; - printk() without KERN_* facility level; - unnecessary braces for single-statement block; - using simple_strtol() where strict_strtol() could be used. In addition to these changes, also do the following: - replace numeric literals/expressions with the matching macros; - insert spaces between operator and its operands; - properly indent the code and the array initializers; - remove useless #if dirctive from board_setup(); - remove needless parentheses; - remove unneeded type casts; - remove excess new lines; - make hexadecimal literals all lower case; - remove space after the type cast's closing parenthesis; - insert missing space before closing brace in the array initializers; - replace spaces after the macro name with tabs in the #define directives, also sometimes insert space there for better looks; - fix typos/errors, capitalize acronyms, etc. in the comments; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Pb1100 code style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - space between asterisk and variable name; - use of C99 // comments; - using simple_strtol() where strict_strtol() could be used. In addition to these changes, also do the following: - properly indent the code; - remove space after the type cast's closing parenthesis; - replace numeric literals/expressions with the matching macros; - replace spaces after the macro name with tabs in the #define directives, and sometimes insert spaces there; - fix typos/errors, capitalize acronyms, etc. in the comments; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first line; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Pb1000 code style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - use of C99 // comments; - brace not on the same line with condition in the 'switch' statement; - printk() without KERN_* facility level; - unnecessary braces for single-statement block; - using simple_strtol() where strict_strtol() could be used. In addition to these changes, also do the following: - properly indent the 'switch' statement; - remove needless parentheses; - insert spaces between operator and its operands; - replace numeric literals/expressions with the matching macros; - remove useless #if dirctive from board_setup(); - remove unneeded numeric literal type casts; - remove space after the type cast's closing parenthesis; - replace spaces after the macro name with tabs in the #define directives, and sometimes insert spaces there; - remove excess new lines; - fix typos/errors, capitalize acronyms, etc. in the comments; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first/last line; - combine some comments; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] DBAu1xx0 code style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - macros with complex values not enclosed in parentheses; - leading spaces instead of tabs; - printk() without KERN_* facility level; - using simple_strtol() where strict_strtol() could be used; - line over 80 characters. In addition to these changes, also do the following: - initialize variable instead of assigning value later where it makes sense; - insert spaces between operator and its operands, also remove excess spaces there; - remove unneeded numeric literal type casts; - remove needless parentheses; - remove space after the type cast's closing parenthesis; - insert missing space before closing brace in the array initializers; - replace spaces after the macro name with tabs in the #define directives; - remove excess tabs after the macro name in the #define directives; - fix typos/errors, capitalize acronyms, etc. in the comments; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first/last line; - update MontaVista copyright; - remove Pete Popov's old email address... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Alchemy common headers style cleanupSergei Shtylyov
Fix several errors and warnings given by checkpatch.pl: - space after opening and before closing parentheses; - opening brace following 'struct' not on the same line; - leading spaces instead of tabs; - use of C99 // comments; - macros with complex values not enclosed in parentheses; - missing space between the type and asterisk in a variable declaration; - space between asterisk and function name; - including <asm/io.h> instead of <linux/io.h> and <asm/irq.h> instead of <linux/irq.h>; - use of '__inline__' instead of 'inline'; - space between function name and opening parenthesis; - line over 80 characters. In addition to these changes, also do the following: - remove needless parentheses; - insert spaces between operator and its operands; - replace spaces after the macro name with tabs in the #define directives and after the type in the structure field declarations; - remove excess tabs after the macro name in the #define directives and in the 'extern' variable declarations; - remove excess spaces between # and define for the SSI_*_MASK macros to align with other such macros; - put '||' operator on the same line with its first operand; - properly indent multi-line function prototypes; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first line and/or adding space/asterisk on their left side; - make two-line comments that only have one line of text one-line; - convert the large multi-line comment in au1xxx_ide.h into several one-liners, replace spaces with tabs there; - fix typos/errors, capitalize acronyms, etc. in the comments; - insert missing and remove excess new lines; - update MontaVista copyright; - remove Pete Popov's and Steve Longerbeam's old email addresses... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] Add empty argument parenthesis to GCC_IMM_ASMRalf Baechle
This is to clarify that GCC_IMM_ASM does not take an argument as the context of the macro's invocation seems to imply. As suggested by Maciej W. Rozycki (macro@linux-mips.org). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12[MIPS] MT: Functional fixes and a little reformatting of APRP supportKevin D. Kissell
Signed-off-by: Kevin D. Kissell <kevink@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] ppc: More compile fixes [POWERPC] ppc: Don't run prom_init_check for arch/ppc builds [POWERPC] ppc: Include <asm/cacheflush.h> in kernel/ppc_ksyms.c [POWERPC] ppc: Use ebony_defconfig for defconfig [POWERPC] Fix default cputable entries for e200 and e500 families
2008-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Work around memory probing bug in openfirmware. sparc32: fix rtrap.S typo sparc32: Fix build.
2008-05-12[POWERPC] ppc: More compile fixesPaul Mackerras
This fixes a few more miscellaneous compile problems with ARCH=ppc. 1. Don't compile devres.c on ARCH=ppc, it doesn't have ioremap_flags. 2. Include <asm/irq.h> in setup.c for the __DO_IRQ_CANON definition. 3. Include <linux/proc_fs.h> in residual.c for the definition of create_proc_read_entry. 4. Fix xchg_ptr to be a static inline to eliminate a compiler warning. Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-11Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Convert some more new-style drivers to use module aliasing i2c: Match dummy devices by type i2c-sibyte: Mark i2c_sibyte_add_bus() as static i2c-sibyte: Correct a comment about frequency i2c: Improve the functionality documentation i2c: Improve smbus-protocol documentation i2c-piix4: Blacklist two mainboards i2c-piix4: Increase the intitial delay for the ServerWorks CSB5 i2c-mpc: Compare to NO_IRQ instead of zero
2008-05-11Add new 'cond_resched_bkl()' helper functionLinus Torvalds
It acts exactly like a regular 'cond_resched()', but will not get optimized away when CONFIG_PREEMPT is set. Normal kernel code is already preemptable in the presense of CONFIG_PREEMPT, so cond_resched() is optimized away (see commit 02b67cc3ba36bdba351d6c3a00593f4ec550d9d3 "sched: do not do cond_resched() when CONFIG_PREEMPT"). But when wanting to conditionally reschedule while holding a lock, you need to use "cond_sched_lock(lock)", and the new function is the BKL equivalent of that. Also make fs/locks.c use it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-11sparc32: Fix build.Robert Reif
Fix sparc32 build error due to undefined bool type. CC [M] fs/ocfs2/dlm/userdlm.o In file included from include/asm/sigcontext.h:6, from include/asm/signal.h:5, from include/linux/signal.h:4, from fs/ocfs2/dlm/userdlm.c:30: include/asm/ptrace.h:42: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘pt_regs_is_syscall’ include/asm/ptrace.h:47: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘pt_regs_clear_syscall’ make[3]: *** [fs/ocfs2/dlm/userdlm.o] Error 1 make[2]: *** [fs/ocfs2/dlm] Error 2 make[1]: *** [fs/ocfs2] Error 2 make: *** [fs] Error 2 Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11i2c: Convert some more new-style drivers to use module aliasingJean Delvare
Update 3 more new-style i2c drivers to use standard module aliasing instead of the old driver_name/type driver matching scheme. These video drivers aren't used yet so converting them is trivial. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-05-11i2c: Match dummy devices by typeJean Delvare
As the old driver_name/type matching scheme is going away soon, change the dummy device mechanism to use the new matching scheme. This has the downside that dummy i2c clients can no longer choose their name, they'll all appear as "dummy" in sysfs and in log messages. I don't think it is a problem in practice though, as there is little reason to use these i2c clients to log messages. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-05-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Fix debugger syscall restart interactions. sparc: Fix ptrace() detach. sparc32: Don't twiddle PT_DTRACE in exec. sparc video: remove open boot prom code
2008-05-11Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] revert new check-ready Status register logic
2008-05-11sparc: Fix debugger syscall restart interactions.David S. Miller
So, forever, we've had this ptrace_signal_deliver implementation which tries to handle all of the nasties that can occur when the debugger looks at a process about to take a signal. It's meant to address all of these issues inside of the kernel so that the debugger need not be mindful of such things. Problem is, this doesn't work. The idea was that we should do the syscall restart business first, so that the debugger captures that state. Otherwise, if the debugger for example saves the child's state, makes the child execute something else, then restores the saved state, we won't handle the syscall restart properly because we lose the "we're in a syscall" state. The code here worked for most cases, but if the debugger actually passes the signal through to the child unaltered, it's possible that we would do a syscall restart when we shouldn't have. In particular this breaks the case of debugging a process under a gdb which is being debugged by yet another gdb. gdb uses sigsuspend to wait for SIGCHLD of the inferior, but if gdb itself is being debugged by a top-level gdb we get a ptrace_stop(). The top-level gdb does a PTRACE_CONT with SIGCHLD to let the inferior gdb see the signal. But ptrace_signal_deliver() assumed the debugger would cancel out the signal and therefore did a syscall restart, because the return error was ERESTARTNOHAND. Fix this by simply making ptrace_signal_deliver() a nop, and providing a way for the debugger to control system call restarting properly: 1) Report a "in syscall" software bit in regs->{tstate,psr}. It is set early on in trap entry to a system call and is fully visible to the debugger via ptrace() and regsets. 2) Test this bit right before doing a syscall restart. We have to do a final recheck right after get_signal_to_deliver() in case the debugger cleared the bit during ptrace_stop(). 3) Clear the bit in trap return so we don't accidently try to set that bit in the real register. As a result we also get a ptrace_{is,clear}_syscall() for sparc32 just like sparc64 has. M68K has this same exact bug, and is now the only other user of the ptrace_signal_deliver hook. It needs to be fixed in the same exact way as sparc. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11sparc: Fix ptrace() detach.David S. Miller
Forever we had a PTRACE_SUNOS_DETACH which was unconditionally recognized, regardless of the personality of the process. Unfortunately, this value is what ended up in the GLIBC sys/ptrace.h header file on sparc as PTRACE_DETACH and PT_DETACH. So continue to recognize this old value. Luckily, it doesn't conflict with anything we actually care about. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-10Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5033/1: Unbreak corgi_ssp by registering ssp drivers earlier. [ARM] Orion: clean up addr-map.c after window setting code purge [ARM] Orion: pass proper t_clk into mv643xx_eth [ARM] Orion: use mv643xx_eth driver mbus window handling [ARM] pxa: Fix RCSR handling [ARM] lubbock: fix compilation [ARM] 5032/1: Added cpufreq support for pxa27x CPU [ARM] 5031/1: Indentation correction in cpu-pxa.c. [ARM] 5028/1: pxafb: fix broken "backward compatibility way" in framebuffer [ARM] 4882/2: Correction for S3C2410 clkout generation [ARM] 5027/1: Fixed random memory corruption on pxa suspend cycle. [ARM] 5024/1: Fix some minor clk issues in the MMCI PL18x driver [ARM] 5023/1: Fix broken gpio interrupts on ep93xx ns9xxx: fix sparse warning ns9xxx: check for irq lockups ns9xxx: fix handle_prio_irq to unmask irqs with lower priority
2008-05-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: rdc: leds build/config fix x86: sysfs cpu?/topology is empty in 2.6.25 (32-bit Intel system) x86: revert commit 709f744 ("x86: bitops asm constraint fixes") x86: restrict keyboard io ports reservation to make ipmi driver work x86: fix fpu restore from sig return x86: remove spew print out about bus to node mapping x86: revert printk format warning change which is for linux-next x86: cleanup PAT cpu validation x86: geode: define geode_has_vsa2() even if CONFIG_MGEODE_LX is not set x86: GEODE: cache results from geode_has_vsa2() and uninline x86: revert geode config dependency
2008-05-10BKL: revert back to the old spinlock implementationLinus Torvalds
The generic semaphore rewrite had a huge performance regression on AIM7 (and potentially other BKL-heavy benchmarks) because the generic semaphores had been rewritten to be simple to understand and fair. The latter, in particular, turns a semaphore-based BKL implementation into a mess of scheduling. The attempt to fix the performance regression failed miserably (see the previous commit 00b41ec2611dc98f87f30753ee00a53db648d662 'Revert "semaphore: fix"'), and so for now the simple and sane approach is to instead just go back to the old spinlock-based BKL implementation that never had any issues like this. This patch also has the advantage of being reported to fix the regression completely according to Yanmin Zhang, unlike the semaphore hack which still left a couple percentage point regression. As a spinlock, the BKL obviously has the potential to be a latency issue, but it's not really any different from any other spinlock in that respect. We do want to get rid of the BKL asap, but that has been the plan for several years. These days, the biggest users are in the tty layer (open/release in particular) and Alan holds out some hope: "tty release is probably a few months away from getting cured - I'm afraid it will almost certainly be the very last user of the BKL in tty to get fixed as it depends on everything else being sanely locked." so while we're not there yet, we do have a plan of action. Tested-by: Yanmin Zhang <yanmin_zhang@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Alexander Viro <viro@ftp.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-10Make <asm-x86/spinlock.h> use ACCESS_ONCE()Linus Torvalds
..instead of cooking up its own uglier local version of it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-10Move ACCESS_ONCE() to <linux/compiler.h>Linus Torvalds
It actually makes much more sense there, and we do tend to need it for non-RCU usage too. Moving it to <linux/compiler.h> will allow some other cases that have open-coded the same logic to use the same helper function that RCU has used. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-10x86: sysfs cpu?/topology is empty in 2.6.25 (32-bit Intel system)Vaidyanathan Srinivasan
System topology on intel based system needs to be exported for non-numa case as well. All parts of asm-i386/topology.h has come under #ifdef CONFIG_NUMA after the merge to asm-x86/topology.h /sys/devices/system/cpu/cpu?/topology/* is populated based on ENABLE_TOPO_DEFINES The sysfs cpu topology is not being populated on my dual socket dual core xeon 5160 processor based (x86 32 bit) system. CONFIG_NUMA is not set in my case yet the topology is relevant and useful. irqbalance daemon application depends on topology to build the cpus and package list and it fails on Fedora9 beta since the sysfs topology was not being populated in the 2.6.25 kernel. I am not sure if it was intentional to not define ENABLE_TOPO_DEFINES for non-numa systems. This fix has been tested on the above mentioned dual core, dual socket system. Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
2008-05-10x86: revert commit 709f744 ("x86: bitops asm constraint fixes")Simon Holm Thøgersen
709f744 causes my computer to freeze during the start up of X and my login manger (GDM). It gets to the point where it has shown the default X mouse cursor logo (a big X / cross) and does not respond to anything from that point on. This worked fine before 709f744, and it works fine with 709f744 reverted on top of Linus' current tree (f74d505). The revert had conflicts, as far as I can tell due to white space changes. The diff I ended up with is below. It is 100% reproducible. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-10x86: fix fpu restore from sig returnSuresh Siddha
If the task never used fpu, initialize the fpu before restoring the FP state from the signal handler context. This will allocate the fpu state, if the task never needed it before. Reported-and-bisected-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Eric Sesterhenn <snakebyte@gmx.de> Cc: Frederik Deweerdt <deweerdt@free.fr> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-09Merge branch 'for-rmk' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into fixes
2008-05-09[libata] revert new check-ready Status register logicJeff Garzik
This behavior differs across multiple controllers, so we cannot use common logic for all controllers. Revert back to the basic common behavior, and specific drivers will be updated from here to take into account the unusual Status return values. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (21 commits) Blackfin Serial Driver: abstract away DLAB differences into header Blackfin Serial Driver: macro away the IER differences between processors [Blackfin] arch: remove useless IRQ_SW_INT defines [Blackfin] arch: protect linux/usb/musb.h include until the driver gets mainlined [Blackfin] arch: protect linux/usb/isp1362.h include until the driver gets mainlined [Blackfin] arch: add EBIU supporting for BF54x EZKIT SMSC LAN911x/LAN921x families embedded ethernet driver [Blackfin] arch: Set spi flash partition on bf527 as like bf548. [Blackfin] arch: fix bug - Remove module will not free L1 memory used [Blackfin] arch: fix wrong header name in comment [Blackfin] arch: Fix BUG - spi flash on bf527 ezkit would fail at mount [Blackfin] arch: add twi_lcd and twi_keypad i2c board info to bf527-ezkit [Blackfin] arch: Add physmap partition for BF527-EZkit [Blackfin] arch: fix gdb testing regression [Blackfin] arch: disable single stepping when delivering a signal [Blackfin] arch: Delete unused (copied from m68k) entries in asm-offsets.c. [Blackfin] arch: In the double fault handler, set up the PT_RETI slot [Blackfin] arch: Support for CPU_FREQ and NOHZ [Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support [Blackfin] arch: fix bug - breaking the atomic sections code. [Blackfin] arch: Equalize include files: Add VR_CTL masks ...
2008-05-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (37 commits) SH: catch negative denormal_subf1() retval in denormal_add() sh: Fix DMAC base address for SH7709S sh: update smc91x platform data for se7206. sh: Stub in cpu_to_node() and friends for NUMA build. sh: intc register modify fix sh: no high level trigger on some sh3 cpus sh: clean up sh7710 and sh7720 intc tables sh: add interrupt ack code to sh3 sh: unify external irq pin code for sh3 sh-sci: avoid writing to nonexistent registers sh-sci: sh7722 lacks scsptr registers sh-sci: improve sh7722 support sh: reset hardware from early printk sh: drain and wait for early printk sh: use sci_out() for early printk sh: add memory resources to /proc/iomem sh: add kernel bss resource sh: fix sh7705 interrupt vector typo sh: update smc91x platform data for se7722 sh: update smc91x platform data for MigoR ...
2008-05-09Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (23 commits) [POWERPC] Remove leftover printk in isa-bridge.c [POWERPC] Remove duplicate #include [POWERPC] Initialize lockdep earlier [POWERPC] Document when printk is useable [POWERPC] Fix bogus paca->_current initialization [POWERPC] Fix of_i2c include for module compilation [POWERPC] Make default cputable entries reflect selected CPU family [POWERPC] spufs: lockdep annotations for spufs_dir_close [POWERPC] spufs: don't requeue victim contex in find_victim if it's not in spu_run [POWERPC] 4xx: Fix PCI mem in sequoia DTS [POWERPC] 4xx: Add endpoint support to 4xx PCIe driver [POWERPC] 4xx: Fix problem with new TLB storage attibute fields on 440x6 core [POWERPC] spufs: spu_create should send inotify IM_CREATE event [POWERPC] spufs: handle faults while the context switch pending flag is set [POWERPC] spufs: fix concurrent delivery of class 0 & 1 exceptions [POWERPC] spufs: try to route SPU interrupts to local node [POWERPC] spufs: set SPU_CONTEXT_SWITCH_PENDING before synchronising SPU irqs [POWERPC] spufs: don't acquire state_mutex interruptible while performing callback [POWERPC] spufs: update master runcntl with context lock held [POWERPC] spufs: fix post-stopped update of MFC_CNTL register ...
2008-05-09module: put modversions in vermagicRusty Russell
Don't allow a module built without versions altogether to be inserted into a kernel which expects modversions. modprobe --force will strip vermagic as well as modversions, so it won't be effected, but this will make sure that a non-CONFIG_MODVERSIONS module won't be accidentally inserted into a CONFIG_MODVERSIONS kernel. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-09[POWERPC] Fix of_i2c include for module compilationJochen Friedrich
Remove #ifdef CONFIG_OF_I2C as this breaks module compilation. Drivers using this header should depend on OF_I2C anyways, so there's no need to make this conditional. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-09Merge branch 'for-2.6.26' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
2008-05-09sh: Fix DMAC base address for SH7709SSteve Glendinning
On SH7709S, DMAC can be found at 0xa4000020 (as with most of the other sh3 cpu subtypes). Split out definition of DMAC base address from definitions of DMTE irqs. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits) net: Added ASSERT_RTNL() to dev_open() and dev_close(). can: Fix can_send() handling on dev_queue_xmit() failures netns: Fix arbitrary net_device-s corruptions on net_ns stop. netfilter: Kconfig: default DCCP/SCTP conntrack support to the protocol config values netfilter: nf_conntrack_sip: restrict RTP expect flushing on error to last request macvlan: Fix memleak on device removal/crash on module removal net/ipv4: correct RFC 1122 section reference in comment tcp FRTO: SACK variant is errorneously used with NewReno e1000e: don't return half-read eeprom on error ucc_geth: Don't use RX clock as TX clock. cxgb3: Use CAP_SYS_RAWIO for firmware pcnet32: delete non NAPI code from driver. fs_enet: Fix a memory leak in fs_enet_mdio_probe [netdrvr] eexpress: IPv6 fails - multicast problems 3c59x: use netstats in net_device structure 3c980-TX needs EXTRA_PREAMBLE fix warning in drivers/net/appletalk/cops.c e1000e: Add support for BM PHYs on ICH9 uli526x: fix endianness issues in the setup frame uli526x: initialize the hardware prior to requesting interrupts ...
2008-05-08MN10300: Make cpu_relax() invoke barrier()David Howells
Make cpu_relax() invoke barrier() to be the same as other arches. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-08Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "relay: fix splice problem" docbook: fix bio missing parameter block: use unitialized_var() in bio_alloc_bioset() block: avoid duplicate calls to get_part() in disk stat code cfq-iosched: make io priorities inherit CPU scheduling class as well as nice block: optimize generic_unplug_device() block: get rid of likely/unlikely predictions in merge logic vfs: splice remove_suid() cleanup cfq-iosched: fix RCU race in the cfq io_context destructor handling block: adjust tagging function queue bit locking block: sysfs store function needs to grab queue_lock and use queue_flag_*()
2008-05-08Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: Fix memory corruption when fs mounted with noadinicb option udf: Make udf exportable udf: fs/udf/partition.c:udf_get_pblock() mustn't be inline
2008-05-08[ARM] pxa: Fix RCSR handlingRussell King
Related to d3930614e68bdf83a120d904c039a64e9f75dba1. RCSR is only present on PXA2xx CPUs, not on PXA3xx CPUs. Therefore, we should not be unconditionally writing to RCSR from generic code. Since we now clear the RCSR status from the SoC specific PXA PM code and before reset in the arch_reset() function, the duplication in the corgi, poodle, spitz and tosa code can be removed. Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>