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* | [PATCH] x86_64: Readd missing tests in entry.SAndi Kleen2005-05-171-2/+9
| | | | | | | | | | | | | | | | Cleans up the system exit call slightly and synchronizes with my tree again. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] x86_64: Reduce NMI watchdog stack usageAndi Kleen2005-05-171-1/+9
| | | | | | | | | | | | | | | | | | NR_CPUs can be quite big these days. kmalloc the per CPU array instead of putting it onto the stack Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] uml: change memcpy to memmovePaolo 'Blaisorblade' Giarrusso2005-05-171-2/+8
| | | | | | | | | | | | | | | | | | Replace one memcpy() call with overlapping source and dest arguments with one call to memmove(), to avoid data corruption. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] ARM: Fix build errorRussell King2005-05-162-4/+4
| | | | | | | | | | | | Mainline kernels don't have VECTORS_HIGH nor COPYPAGE_MINICACHE yet. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* | [PATCH] ARM: 2678/1: S3C2440 - cpu fixes, hdiv divisors and nand dev nameBen Dooks2005-05-121-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Fix the setting of hdiv when set to divide-by-2. Thanks to Jeonghoon Yoon for pointing this out. Change name of the NAND device to "s3c2440-nand" as it is not similar enough to the "s3c2410-nand" device. Signed-off-by: Ben Dooks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2677/1: S3C2440 - UPLL frequency doubledBen Dooks2005-05-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks S3C2440 UPLL is the same as the S3C2410 UPLL, it is only the MPLL which has an extra multiplication factor of 2 in the multiplier. Signed-off-by: Ben Dooks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2680/1: refine TLS reg availability some more againNicolas Pitre2005-05-121-11/+10
| | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre Not all ARMv6 processors implement the TLS register. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2663/2: I can't typeNicolas Pitre2005-05-101-2/+2
| | | | | | | | | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Add V6 aliasing cache flushRussell King2005-05-101-2/+35
| | | | | | | | | | | | | | Add cache flushing support for aliased V6 caches to flush_dcache_page. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* | [PATCH] ARM: Use top_pmd for V6 copy/clear user_pageRussell King2005-05-101-22/+6
| | | | | | | | | | | | Remove needless page table walking for v6 page operations. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* | [PATCH] ARM: Move copy/clear user_page locking into implementationRussell King2005-05-102-80/+111
| | | | | | | | | | | | | | | | | | Move the locking for copy_user_page() and clear_user_page() into the implementations which require locking. For simple memcpy/ memset based implementations, the locking is extra overhead which is not necessary, and prevents preemption occuring. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* | [PATCH] ARM: Add top_pmd, which points at the top-most page tableRussell King2005-05-101-0/+4
| | | | | | | | Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* | [PATCH] ARM: Add inline functions to find the pmd from virtual addressRussell King2005-05-091-8/+15
|/ | | | | | | Add pmd_off() and pmd_off_k() to obtain the pmd pointer for a virtual address, and use them throughout the mm initialisation. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] uml: x86_64 fixesJeff Dike2005-05-065-5/+9
| | | | | | | | | | | | | | | | | | | | This fixes some x86_64 bugs - - maybe_map returns -1 on error instead of 0, which is interpreted as physical address 0 - removed an include of ipc.h, which isn't needed - fixed the calculation of signal frame location - the signal delivery code is now immune to the stack expansion check - added a missing include Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Fix process exit raceBodo Stroesser2005-05-065-16/+11
| | | | | | | | | | | | | | | | | | | | | | | | tt-mode closes switch_pipes in exit_thread_tt and kills processes in switch_to_tt, if the exit_state is EXIT_DEAD or EXIT_ZOMBIE. In very rare cases the exiting process can be scheduled out after having set exit_state and closed switch_pipes (from release_task it calls proc_pid_flush, which might sleep). If this process is to be restarted, UML failes in switch_to_tt with: write of switch_pipe failed, err = 9 We fix this by closing switch_pipes not in exit_thread_tt, but later in release_thread_tt. Additionally, we set switch_pipe[0] = 0 after closing. switch_to_tt must not kill "from" process depending on its exit_state, but must kill it after release_thread was processed only, so it examines switch_pipe[0] for its decision. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: S390 preparation, arch_align_stackBodo Stroesser2005-05-061-0/+9
| | | | | | | | | | | | | | Only x86 and x86_64 use arch_align_stack(), all other subarches have: #define arch_align_stack(x) (x) So, if this definition is found, UML's own arch_align_stack() should be skipped. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Use CONFIG variable for address space sizeBodo Stroesser2005-05-061-7/+1
| | | | | | | | | | | tt/mem.c still uses hardcoded TOP for i386 instead of CONFIG_TOP_ADDR provided by subarch's Kconfig_XXXX, which would be right. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Turn literal numbers into symbolic constantsJeff Dike2005-05-061-13/+22
| | | | | | | | | | | So, there I was, looking at my own code, wondering what the magic setjmp return values did. This patch turns the constants that are used to make requests of the initial thread into meaningful symbols. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Makefile cleanupJeff Dike2005-05-061-5/+1
| | | | | | | | | | This eliminates some stuff from arch/um/kernel/Makefile which refers to a file which has long since been deleted. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Eliminate unusable functionJeff Dike2005-05-061-10/+0
| | | | | | | | | | Eliminate the non-inline version of switch_mm, which can't be used, considering the inline version in asm/mmu_context.h Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: S390 preparation, save an extra registerBodo Stroesser2005-05-061-0/+4
| | | | | | | | | | | s390 tt-mode needs to save not only syscall number, but an further register also. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: S390 preparation, peekusr/pokeusr defined by subarchBodo Stroesser2005-05-064-50/+153
| | | | | | | | | | | | | | | | | | | | | | | | s390 needs to change some parts of arch/um/kernel/ptrace.c. Thus, the code regarding PEEKUSER and POKEUSER are shifted to arch/um/sys-<subarch>/ptrace.c. Also s390 debug registers need to be updated, when singlestepping is switched on / off. Thus, setting/resetting of singlestepping is centralized in the new function set_singlestep(), which also inserts the macro SUBARCH_SET_SINGLESTEP(mode), if defined. Finally, s390 has the "ieee_instruction_pointer" in its registers, which also is allowed to be read via ptrace( PTRACE_PEEKUSER, getpid(), PT_IEEE_IP, 0); To implement this feature, sys_ptrace inserts the macro SUBARCH_PTRACE_SPECIAL, if defined. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: command line handling cleanupJeff Dike2005-05-062-4/+4
| | | | | | | | | | Command line handling cleanups - a couple of things made static and an unused declaration removed from header. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: __deprecated makes build unnecessarily noisyJeff Dike2005-05-062-4/+4
| | | | | | | | | | | | Remove the __deprecated from verify_area_skas and verify_area_tt. Since verify_area is itself marked __deprecated, and it is the only caller of these, then they don't need to be marked. Marking them only makes the build noisier. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix POWER3/POWER4 compiler errorKumar Gala2005-05-061-0/+2
| | | | | | | | | | | In separating out support for hardware floating point we missed the fact that both POWER3 and POWER4 have HW FP. Enable CONFIG_PPC_FPU for POWER3 and POWER4 fixes the issue. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: enable CONFIG_RTAS_PROC by defaultPaul Mackerras2005-05-061-0/+1
| | | | | | | | | | This patch enables CONFIG_RTAS_PROC by default on pSeries. This will preserve /proc/ppc64/rtas/rmo_buffer, which is needed by librtas. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Fix acpi_find_rsdp() - acpi_scan_rsdp takes length, not endLinus Torvalds2005-05-061-1/+1
| | | | Noticed by Jakub Jermar <jermar@itbs.cz>
* [PATCH] ppc64: global interrupt queue cleanupPaul Mackerras2005-05-062-11/+12
| | | | | | | | | | | Move the code to set global interrupt queue membership to xics.c, and remove no longer needed extern declarations. Also call it on all cpus (even the boot cpu) to prepare for kexec. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: R Sharada <sharada@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove explicit contig_page_data referencePaul Mackerras2005-05-051-1/+1
| | | | | | | | | | Trivial patch to remove our last direct reference to contig_page_data. This will make it just that much less hard to seperate NUMA and DISCONTIG. Please forward on. Against 2.6.12-rc1 Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove unused arch/ppc64/boot/start.cPaul Mackerras2005-05-051-654/+0
| | | | | | | | | | start.c is not referenced in the arch/ppc64/boot/Makefile compile tested with the defconfig. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove asm/bootinfo.h includePaul Mackerras2005-05-051-1/+0
| | | | | | | | | | | | | | | | | The defines in bootinfo.h are not used, so the include can be removed. According to Ben, birecs are not used on ppc64: on ppc64, we made the decision of enforcing the presence of an OF device-tree and either an OF-like client interface or a kexec like flattened tree. so if your bootloader want to say things to the kernel, it can do so by adding properties to the device-tree compile-tested with defconfig Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: fix reloc_offset commentPaul Mackerras2005-05-051-1/+1
| | | | | | | | | | | | | | | | The code in reloc_offset is actually subtracting the address in the link register from the address calculated by the linker. Perhaps the extended mnemonic `sub' replaced an original `subf' and the comment just did not get updated. bl 1f 1: mflr r3 LOADADDR(r4,1b) sub r3,r4,r3 Signed-off-by: Amos Waterland <apw@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: fix prom.c compile warningPaul Mackerras2005-05-051-1/+1
| | | | | | | | | | | | | | | | | | The code in unflatten_device_tree knows that get_property is written to only return with lenp equal to 1 when also returning a valid pointer. The gcc 3.3.3 compiler is not able to prove this to itself, so it warns about a possible uninitialized pointer dereference: .../arch/ppc64/kernel/prom.c: In function `unflatten_device_tree': .../arch/ppc64/kernel/prom.c:828: warning: `p' might be used uninitialized in this function Unless it is desired to rework the interaction between the two functions, this will keep the existing behavior but quiet the compiler. Signed-off-by: Amos Waterland <apw@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] arch/ppc64: Replace custom MIN macroTobias Klauser2005-05-051-5/+1
| | | | | | | | | Replace a custom MIN() macro with the min() macro from kernel.h This patch removes 4 lines of redundant code. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: geode support fixesKianusch Sayah Karadji2005-05-052-14/+12
| | | | | | | | | | | | - Changed Name/defines from "Geode GX" to "Geode GX1" for clarification - Dropped "-march=i586" in favor of "-march=i486" - Dopped X86_OOSTORE support for Geode GX1 Signed-off-by: Kianusch Sayah Karadji <kianusch@sk-tech.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] CodingStyle: trivial whitespace fixupsDomen Puncer2005-05-053-12/+12
| | | | | | | | | | | | | | When I do a "diff -Nur arch/i386 arch/x86_64" to see what is different between these two architectures, I see some differences due to whitespace issues only. The attached patch removes some of the noise by fixing up the following files: - arch/i386/boot/bootsect.S - arch/i386/boot/video.S - arch/x86_64/boot/bootsect.S Signed-off-by: Daniel Dickman <didickman@yahoo.com> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cyrix: eliminate bad section referencesmaximilian attems2005-05-051-2/+2
| | | | | | | | | | | | | | | | | | | | | Fix cyrix section references: convert __initdata to __devinitdata. Error: ./arch/i386/kernel/cpu/mtrr/cyrix.o .text refers to 00000379 R_386_32 .init.data Error: ./arch/i386/kernel/cpu/mtrr/cyrix.o .text refers to 00000399 R_386_32 .init.data Error: ./arch/i386/kernel/cpu/mtrr/cyrix.o .text refers to 000003b3 R_386_32 .init.data Error: ./arch/i386/kernel/cpu/mtrr/cyrix.o .text refers to 000003b9 R_386_32 .init.data Error: ./arch/i386/kernel/cpu/mtrr/cyrix.o .text refers to 000003bf R_386_32 .init.data Signed-of-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Incorrect handling of probes on ret/lret instructionPrasanna S Panchamukhi2005-05-052-0/+14
| | | | | | | | | | | | | Kprobes could not handle the insertion of a probe on the ret/lret instruction and used to oops after single stepping since kprobes was modifying eip/rip incorrectly. Adjustment of eip/rip is not required after single stepping in case of ret/lret instruction, because eip/rip points to the correct location after execution of the ret/lret instruction. This patch fixes the above problem. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: header and code cleanupBodo Stroesser2005-05-052-18/+2
| | | | | | | | | | | | Remove some definitions and declarations from arch/um/include/skas_ptrace.h, as they have moved to arch/um/include/sysdep/skas_ptrace.h Also, remove PTRACE_SIGPENDING support in UML at all. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: remove a dangling symlinkBodo Stroesser2005-05-051-1/+1
| | | | | | | | | UML: remove no longer needed arch-signal.h Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: s390 preparation, sighandler interface abstractionBodo Stroesser2005-05-053-2/+6
| | | | | | | | | | | | | | s390 passes parameters in registers. So the only safe way to find out the address of signal context, error-address and error-type (trap_no), which are passed to signal handlers as parameters, is to declare these parameters. So I inserted an subarch-specific macro which holds the declaration of parameters for signal handlers. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: s390 preparation, delay moved to archBodo Stroesser2005-05-055-21/+41
| | | | | | | | | | | s390 has fast read access to realtime clock (nanosecond resolution). So it makes sense to have an arch-specific implementation not only of __delay, but __udelay also. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: s390 preparation, checksumming done in arch codeBodo Stroesser2005-05-055-59/+27
| | | | | | | | | | | | | | | | | | | | Checksum handling largely depends on the subarch. Thus, I renamed i386 arch_csum_partial in arch/um/sys-i386/checksum.S back to csum_partial, removed csum_partial from arch/um/kernel/checksum.c and shifted EXPORT_SYMBOL(csum_partial) to arch/um/sys-i386/ksyms.c. Then, csum_partial_copy_to and csum_partial_copy_from were shifted from arch/um/kernel/checksum.c to arch/um/include/sysdep-i386/checksum.h and inserted in the calling functions csum_partial_copy_from_user() and csum_and_copy_to_user(). Now, arch/um/kernel/checksum.c is empty and removed. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: s390 preparation, elf.hBodo Stroesser2005-05-051-1/+1
| | | | | | | | | | | | This patch make elh.h a symlink to the new arch-specific include files of the form elf-<subarch>.h, as in the same way already is done for some other includes. Also moves Elf-stuff from archparam-<subarch>.h and elf.h to the new elf-<subarch>.h files. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: inclusion cleanupJeff Dike2005-05-051-1/+0
| | | | | | | | | The completion cleanup got rid of some semaphores, but didn't remove the inclusion of asm/semaphore.h from xterm_kern.c. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: tidy Makefile.rulesJeff Dike2005-05-051-4/+5
| | | | | | | | Just some breaking of some overly-long lines. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: Fix SIGWINCH relayingJeff Dike2005-05-058-7/+55
| | | | | | | | | | | | | This makes SIGWINCH work again, and fixes a couple of SIGWINCH-associated crashes. First, the sigio thread disables SIGWINCH because all hell breaks loose if it ever gets one and tries to call the signal handling code. Second, there was a problem with deferencing tty structs after they were freed. The SIGWINCH support for a tty wasn't being turned off or freed after the tty went away. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: S390 preparation, abstract host page fault dataBodo Stroesser2005-05-0521-107/+263
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the arch-specific fault/trap-infos from thread and skas-regs. It adds a new struct faultinfo, that is arch-specific defined in sysdep/faultinfo.h. The structure is inserted in thread.arch and thread.regs.skas and thread.regs.tt Now, segv and other trap-handlers can copy the contents from regs.X.faultinfo to thread.arch.faultinfo with one simple assignment. Also, the number of macros necessary is reduced to FAULT_ADDRESS(struct faultinfo) extracts the faulting address from faultinfo FAULT_WRITE(struct faultinfo) extracts the "is_write" flag SEGV_IS_FIXABLE(struct faultinfo) is true for the fixable segvs, i.e. (TRAP == 14) on i386 UPT_FAULTINFO(regs) result is (struct faultinfo *) to the faultinfo in regs->skas.faultinfo GET_FAULTINFO_FROM_SC(struct faultinfo, struct sigcontext *) copies the relevant parts of the sigcontext to struct faultinfo. On SIGSEGV, call user_signal() instead of handle_segv(), if the architecture provides the information needed in PTRACE_FAULTINFO, or if PTRACE_FAULTINFO is missing, because segv-stub will provide the info. The benefit of the change is, that in case of a non-fixable SIGSEGV, we can give user processes a SIGSEGV, instead of possibly looping on pagefault handling. Since handle_segv() sikked arch_fixup() implicitly by passing ip==0 to segv(), I changed segv() to call arch_fixup() only, if !is_user. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: fix a ptrace callJeff Dike2005-05-051-2/+3
| | | | | | | | | This fixes write_ldt_entry to treat userspace_pid as an array. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: finish cross-build supportAl Viro2005-05-051-0/+30
| | | | | | | | | | O=... builds support. Very easy, actually. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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