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* [PATCH] RapidIO support: core includesMatt Porter2005-11-07
| | | | | | | | | | | Add RapidIO core include files. The core code implements enumeration/discovery, management of devices/resources, and interfaces for RIO drivers. Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] RapidIO support: core baseMatt Porter2005-11-07
| | | | | | | | | | | | | | | | | Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect used in higher-end embedded applications. The curious can look at the specs over at http://www.rapidio.org The core code implements enumeration/discovery, management of devices/resources, and interfaces for RIO drivers. There's a lot more to do to take advantages of all the hardware features. However, this should provide a good base for folks with RIO hardware to start contributing. Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: preempt_disable/enable() simplificationAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | Reorganize the preempt_disable/enable calls to eliminate the extra preempt depth. Changes based on Paul McKenney's review suggestions for the kprobes RCU changeset. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Use RCU for (un)register synchronization - base changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | | | | Changes to the base kprobes infrastructure to use RCU for synchronization during kprobe registration and unregistration. These changes coupled with the arch kprobe changes (next in series): a. serialize registration and unregistration of kprobes. b. enable lockless execution of handlers. Handlers can now run in parallel. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - x86_64 changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | x86_64 changes to track kprobe execution on a per-cpu basis. We now track the kprobe state machine independently on each cpu using a arch specific kprobe control block. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - sparc64 changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | | Sparc64 changes to track kprobe execution on a per-cpu basis. We now track the kprobe state machine independently on each cpu using an arch specific kprobe control block. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - ppc64 changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | PPC64 changes to track kprobe execution on a per-cpu basis. We now track the kprobe state machine independently on each cpu using an arch specific kprobe control block. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - ia64 changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | IA64 changes to track kprobe execution on a per-cpu basis. We now track the kprobe state machine independently on each cpu using an arch specific kprobe control block. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - i386 changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | | I386 changes to track kprobe execution on a per-cpu basis. We now track the kprobe state machine independently on each cpu, using an arch specific kprobe control block. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Track kprobe on a per_cpu basis - base changesAnanth N Mavinakayanahalli2005-11-07
| | | | | | | | | | Changes to the base kprobe infrastructure to track kprobe execution on a per-cpu basis. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ipmi: use refcount in message handlerCorey Minyard2005-11-07
| | | | | | | | | | | | | | | | | This patch is rather large, but it really can't be done in smaller chunks easily and I believe it is an important change. This has been out and tested for a while in the latest IPMI driver release. There are no functional changes, just changes as necessary to convert the locking over (and a few minor style updates). The IPMI driver uses read/write locks to ensure that things exist while they are in use. This is bad from a number of points of view. This patch removes the rwlocks and uses refcounts and RCU lists to manage what the locks did. Signed-off-by: Corey Minyard <minyard@acm.org> Cc: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FUSE: pass file handle in setattrMiklos Szeredi2005-11-07
| | | | | | | | | | | This patch passes the file handle supplied in iattr to userspace, in case the ->setattr() was invoked from sys_ftruncate(). This solves the permission checking (or lack thereof) in ftruncate() for the class of filesystems served by an unprivileged userspace process. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FUSE: atomic create+openMiklos Szeredi2005-11-07
| | | | | | | | | | This patch adds an atomic create+open operation. This does not yet work if the file type changes between lookup and create+open, but solves the permission checking problems for the separte create and open methods. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FUSE: add access callMiklos Szeredi2005-11-07
| | | | | | | | | | Add a new access call, which will only be called if ->permission is invoked from sys_access(). In all other cases permission checking is delayed until the actual filesystem operation. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FUSE: bump interface minor versionMiklos Szeredi2005-11-07
| | | | | | | | | | Though the following changes are all backward compatible (from the kernel's as well as the library's POV) change the minor version, so interested applications can detect new features. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] VFS: pass file pointer to filesystem from ftruncate()Miklos Szeredi2005-11-07
| | | | | | | | | | | | | | This patch extends the iattr structure with a file pointer memeber, and adds an ATTR_FILE validity flag for this member. This is set if do_truncate() is invoked from ftruncate() or from do_coredump(). The change is source and binary compatible. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] consolidate sys_ptrace()Christoph Hellwig2005-11-07
| | | | | | | | | | | | | | | | | | | | | | The sys_ptrace boilerplate code (everything outside the big switch statement for the arch-specific requests) is shared by most architectures. This patch moves it to kernel/ptrace.c and leaves the arch-specific code as arch_ptrace. Some architectures have a too different ptrace so we have to exclude them. They continue to keep their implementations. For sh64 I had to add a sh64_ptrace wrapper because it does some initialization on the first call. For um I removed an ifdefed SUBARCH_PTRACE_SPECIAL block, but SUBARCH_PTRACE_SPECIAL isn't defined anywhere in the tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-By: David Howells <dhowells@redhat.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix remaining missing includesTim Schmielau2005-11-07
| | | | | | | | | | Fix more include file problems that surfaced since I submitted the previous fix-missing-includes.patch. This should now allow not to include sched.h from module.h, which is done by a followup patch. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] quota: small cleanupsAdrian Bunk2005-11-07
| | | | | | | | | | | | - "extern inline" -> "static inline" - every file should #include the headers containing the prototypes for it's global functions Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] aio: remove aio_max_nr accounting raceZach Brown2005-11-07
| | | | | | | | | | | | | | | | | | | | | AIO was adding a new context's max requests to the global total before testing if that resulting total was over the global limit. This let innocent tasks get their new limit tested along with a racing guilty task that was crossing the limit. This serializes the _nr accounting with a spinlock It also switches to using unsigned long for the global totals. Individual contexts are still limited to an unsigned int's worth of requests by the syscall interface. The problem and fix were verified with a simple program that spun creating and destroying a context while holding on to another long lived context. Before the patch a task creating a tiny context could get a spurious EAGAIN if it raced with a task creating a very large context that overran the limit. Signed-off-by: Zach Brown <zach.brown@oracle.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] small kernel_stat.h cleanupIngo Molnar2005-11-07
| | | | | | | | cleanup: use for_each_cpu() instead of an open-coded NR_CPUS loop. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reiser4: add radix_tree_lookup_slot()Hans Reiser2005-11-07
| | | | | | | | | | | | | | Reiser4 uses radix trees to solve a trouble reiser4_readdir has serving nfs requests. Unfortunately, radix tree api lacks an operation suitable for modifying existing entry. This patch adds radix_tree_lookup_slot which returns pointer to found item within the tree. That location can be then updated. Both Nick and Christoph Lameter have patches which need this as well. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] readahead commentaryAndrew Morton2005-11-07
| | | | | | | | | | Add a few comments surrounding the generic readahead API. Also convert some ulongs into pgoff_t: the identifier for PAGE_CACHE_SIZE offsets into pagecache. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SHM_NORESERVE flags for shmget()Badari Pulavarty2005-11-07
| | | | | | | | | | | | | Add SHM_NORESERVE functionality similar to MAP_NORESERVE for shared memory segments. This is mainly to avoid abuse of OVERCOMMIT_ALWAYS and this flag is ignored for OVERCOMMIT_NEVER. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Remove hlist_for_each_rcu() API, convert existing use to ↵Paul E. McKenney2005-11-07
| | | | | | | | | | | | | hlist_for_each_entry_rcu Remove the hlist_for_each_rcu() API, which is used only in one place, and is trivially converted to hlist_for_each_entry_rcu(), making the code shorter and more readable. Any out-of-tree uses may be similarly converted. Signed-off-by: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Process Events ConnectorMatt Helsley2005-11-07
| | | | | | | | | | | | This patch adds a connector that reports fork, exec, id change, and exit events for all processes to userspace. It replaces the fork_advisor patch that ELSA is currently using. Applications that may find these events useful include accounting/auditing (e.g. ELSA), system activity monitoring (e.g. top), security, and resource management (e.g. CKRM). Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: const pointer uaccessMartin Schwidefsky2005-11-07
| | | | | | | | | Using __typeof__(*ptr) on a pointer to const makes the __x variable in __get_user const as well. The latest gcc will refuse to write to it. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: cleanup of include/asm-s390/vtoc.hPeter Oberparleiter2005-11-07
| | | | | | | Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: test_bit return valueChristian Borntraeger2005-11-07
| | | | | | | | | | | The test_bit function returns a non-boolean value, it returns 0,1,2,4,... instead of only 0 or 1. This causes wrongs results in the mincore system call. Check against 0 to get a proper boolean value. Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: struct semaphore.sleepers initializationArthur Othieno2005-11-07
| | | | | | | | | | No one may sleep on us until we've been down()'d. So on allocation, initialize `sleepers' to 0, just like everyone else does. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Acked-by: Christian Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] include/asm-v850/ "extern inline" -> "static inline"Adrian Bunk2005-11-07
| | | | | | | | | "extern inline" doesn't make much sense. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: maintain own LDT entriesBodo Stroesser2005-11-07
| | | | | | | | | | | | | | | | | | | | Patch imlements full LDT handling in SKAS: * UML holds it's own LDT table, used to deliver data on modify_ldt(READ) * UML disables the default_ldt, inherited from the host (SKAS3) or resets LDT entries, set by host's clib and inherited in SKAS0 * A new global variable skas_needs_stub is inserted, that can be used to decide, whether stub-pages must be supported or not. * Uses the syscall-stub to replace missing PTRACE_LDT (therefore, write_ldt_entry needs to be modified) Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: switch_mm fixBen Lahaise2005-11-07
| | | | | | | | | | | | | Not quite, something along the lines of the patch below works correctly (and makes aio performance not suffer from multiple second delays), as skas0 mode correctly switches mm contexts, unlike TT (which should probably get nuked from the kernel now that skas0 seems to be working). Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cris: "extern inline" -> "static inline"Adrian Bunk2005-11-07
| | | | | | | | | "extern inline" doesn't make much sense. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cris: printk() duplicate declarationArthur Othieno2005-11-07
| | | | | | | | | | printk() already declared in include/linux/kernel.h so squish the duplication. Besides, no printk() usage here. Bye bye. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: add MCE resumeShaohua Li2005-11-07
| | | | | | | | | | It's widely seen a MCE non-fatal error reported after resume. It seems MCE resume is lacked under ia32. This patch tries to fix the gap. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sh: Drop hp690 discontig supportPaul Mundt2005-11-07
| | | | | | | | | | | | | | | | There was only one board using this (hp690 specifically), and it just so happens that it's only physically discontiguous at the "normal" P1 offset. If we bump up the P1 offset, it's possible to hit a shadowed region of memory where we suddenly become magically contiguous. As people have been using this shadowed region workaround for quite some time (and without any adverse effects), it's time to drop the left over discontig bits that no longer have any practical use (it was always very much hp690-centric to begin with). Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sh: pte_mkhuge() compile fix for !CONFIG_HUGETLB_PAGEPaul Mundt2005-11-07
| | | | | | | | | | | | Presently it is bogus to call pte_mkhuge() outside of the CONFIG_HUGETLB_PAGE context, as the only processors that support _PAGE_SZHUGE do so in the hugetlbpage context only (and this is the only time that _PAGE_SZHUGE is even defined). SH-2 and SH-3 do not support huge pages at all, and so it is not possible to enable this. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] superhyway: multiple block support and VCR reworkPaul Mundt2005-11-07
| | | | | | | | | | | | | | | | | This extends the API somewhat to allow for platform-specific VCR reading and writing. Some platforms (like SH4-202) implement the VCR in a split VCRL and VCRH, but end up being in reverse order or have other quirks that need to be dealt with, so we add a set of superhyway_ops per-bus to accomodate this. We also have to extend the per-device resources somewhat, as some devices now conveniently split control and data blocks. So we allow a platform to register its set of SuperHyway devices via superhyway_add_devices() with the control block always ordered as the first resource (as this is the one that userspace cares about). Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: cleanup AMCC PPC40x eval boards to support U-BootMatt Porter2005-11-07
| | | | | | | | | | | | | | Cleanup PPC40x eval boards (bubinga, walnut and sycamore) to support U-Boot as bootloader. The OpenBIOS bd_info struct is not used in the kernel anymore (only U-Boot now). uImage (U-Boot) tested on walnut, sycamore and bubinga zImage (OpenBIOS) tested on sycamore, bubinga and ebony Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Add Yucca (440SPe eval board) platformRoland Dreier2005-11-07
| | | | | | | | | Add support for AMCC PowerPC 440SPe "Yucca" eval board platform. Signed-off-by: Roland Dreier <rolandd@cisco.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Add 440SPe supportRoland Dreier2005-11-07
| | | | | | | | | | Add support for the AMCC PowerPC 440SPe SoC, including PCI Express in root port mode. Signed-off-by: Roland Dreier <rolandd@cisco.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Dump error status for both PLB segments on 440SPRoland Dreier2005-11-07
| | | | | | | | | | | | The PowerPC 440SP SoC has two Processor Local Bus (PLB) segments (a high-throughput segment and a low-latency segment). Fix our PLB register definitions to cope with this, and add code to dump the status of both segments when a machine check occurs. Signed-off-by: Roland Dreier <rolandd@cisco.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Allow ERPN for early serial to depend on CPU typeRoland Dreier2005-11-07
| | | | | | | | | | | | | The PowerPC 440SPe supports up to 16 GB of RAM, and therefore its IO registers are at 0x4_xxxx_xxxx instead of being at 0x1_xxxx_xxxx like most other PPC 440 chips. To allow for this, this patch moves the definition of the ERPN used for mapping UART0 from being hard-coded in the head_44x.S assembly code to being defined in ibm44x.h. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: rename kmem_cache_s to kmem_cachePekka J Enberg2005-11-07
| | | | | | | | | This patch renames struct kmem_cache_s to kmem_cache so we can start using it instead of kmem_cache_t typedef. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ia64: re-implement dma_get_cache_alignment to avoid EXPORT_SYMBOLJohn W. Linville2005-11-07
| | | | | | | | | | | | | The current ia64 implementation of dma_get_cache_alignment does not work for modules because it relies on a symbol which is not exported. Direct access to a global is a little ugly anyway, so this patch re-implements dma_get_cache_alignment in a manner similar to what is currently used for x86_64. Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: Fix bug in SLB miss handler for hugepagesDavid Gibson2005-11-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch, however, should be applied on top of the 64k-page-size patch to fix some problems with hugepage (some pre-existing, another introduced by this patch). The patch fixes a bug in the SLB miss handler for hugepages on ppc64 introduced by the dynamic hugepage patch (commit id c594adad5653491813959277fb87a2fef54c4e05) due to a misunderstanding of the srd instruction's behaviour (mea culpa). The problem arises when a 64-bit process maps some hugepages in the low 4GB of the address space (unusual). In this case, as well as the 256M segment in question being marked for hugepages, other segments at 32G intervals will be incorrectly marked for hugepages. In the process, this patch tweaks the semantics of the hugepage bitmaps to be more sensible. Previously, an address below 4G was marked for hugepages if the appropriate segment bit in the "low areas" bitmask was set *or* if the low bit in the "high areas" bitmap was set (which would mark all addresses below 1TB for hugepage). With this patch, any given address is governed by a single bitmap. Addresses below 4GB are marked for hugepage if and only if their bit is set in the "low areas" bitmap (256M granularity). Addresses between 4GB and 1TB are marked for hugepage iff the low bit in the "high areas" bitmap is set. Higher addresses are marked for hugepage iff their bit in the "high areas" bitmap is set (1TB granularity). To avoid conflicts, this patch must be applied on top of BenH's pending patch for 64k base page size [0]. As such, this patch also addresses a hugepage problem introduced by that patch. That patch allows hugepages of 1MB in size on hardware which supports it, however, that won't work when using 4k pages (4 level pagetable), because in that case hugepage PTEs are stored at the PMD level, and each PMD entry maps 2MB. This patch simply disallows hugepages in that case (we can do something cleverer to re-enable them some other day). Built, booted, and a handful of hugepage related tests passed on POWER5 LPAR (both ARCH=powerpc and ARCH=ppc64). [0] http://gate.crashing.org/~benh/ppc64-64k-pages.diff Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds2005-11-06
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| * [PATCH] kbuild: permanently fix kernel configuration include messRussell King2005-11-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include autoconf.h into every kernel compilation via the gcc command line using -imacros. This ensures that we have the kernel configuration included from the start, rather than relying on each file having #include <linux/config.h> as appropriate. History has shown that this is something which is difficult to get right. Since we now include the kernel configuration automatically, make configcheck becomes meaningless, so remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | Merge master.kernel.org:/home/rmk/linux-2.6-drvmodelLinus Torvalds2005-11-06
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