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2007-05-08[POWERPC] PowerPC MSI infrastructureMichael Ellerman
This provides the architecture specific hooks to support MSI on powerpc. We implement the newly added arch_setup_msi_irqs() and arch_teardown_msi_irqs(), and then delegate to ppc_md routines. Platforms that don't implement MSI will leave the ppc_md calls blank, arch_msi_check_device() will detect this and return ENOSYS. Drivers should detect this error and continue to use LSI. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Rip out the existing powerpc msi stubsMichael Ellerman
Rip out the existing powerpc msi stubs. These were the start of an implementation based on ppc_md calls, but were never used in mainline. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Remove use of 4level-fixup.h for ppc32David Gibson
For 32-bit systems, powerpc still relies on the 4level-fixup.h hack, to pretend that the generic pagetable handling stuff is 3-levels rather than 4. This patch removes this, instead using the newer pgtable-nopmd.h to handle the elision of both the pud and pmd pagetable levels (ppc32 pagetables are actually 2 levels). This removes a little extraneous code, and makes it more easily compared to the 64-bit pagetable code. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add powerpc PCI-E reset API implementationBrian King
Adds the pSeries platform implementation for a new PCI API which can be used to issue various types of PCI-E reset, including PCI-E warm reset and PCI-E hot reset. This is needed for an ipr PCI-E adapter which does not properly implement BIST. Running BIST on this adapter results in PCI-E errors. The only reliable reset mechanism that exists on this hardware is PCI Fundamental reset (warm reset). Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08Merge branch 'linux-2.6'Paul Mackerras
2007-05-08[POWERPC] Holly bootwrapperJosh Boyer
Add Holly/Hickory bootwrapper Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Holly DTSJosh Boyer
Add Holly DTS file Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Holly defconfigJosh Boyer
Holly/Hickory defconfig Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add support for 750CL Holly boardJosh Boyer
Add PowerPC 750 Holly/Hickory platform support Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Generalize tsi108 PCI setupJosh Boyer
Generalize tsi108_setup_pci to take the config space physical address and primary bus designator as a parameter. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Generalize tsi108 PHY typesJosh Boyer
Add a phy_type field to the tsi108 ethernet structures to indicate which PHY is used on a board. This is derived from the "compatible" property in the ethernet-phy node of the device tree. The default remains the MV88E PHY. Also, convert the setup code to use of_get_mac_address instead of hard coding a lookup for the "address" property in the ethernet node. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add tsi108_pci.h for common PCI functionsJosh Boyer
Add a header file for the common PCI routines used for the TSI bridge Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Export pcibios_remove_pci_devicesLinas Vepstas
The pseries PCI hotplug code cannot build as a module, unless the pcibios_remove_pci_devices function is exported. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/pci_dlpar.c | 1 + 1 file changed, 1 insertion(+) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] via-pmu: remove LED sleep notifierJohannes Berg
The generic LED code now makes sure that suspended devices don't blink, so we no longer need to do it ourselves. For the suspend to disk case, however, we need to make sure that we don't blink if the PMU sysdev was suspended before the LED device. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add __init annotations to reserve_mem() and stabs_alloc()Michael Ellerman
reserve_mem() and stabs_alloc() are both called only from other __init routines, so can be marked __init. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Cope with PCI host bridge I/O window not starting at 0Paul Mackerras
Currently our code to set up the data structures for a PCI host bridge and create the mapping for its I/O window assumes that the window starts at I/O port 0 on the PCI side. If this is not true, we can end up with I/O port numbers in the resources for PCI devices which will cause an oops if a driver tries to access them via inb/outb etc., because there is no mapping for the corresponding addresses. Normally the I/O window starts at 0, but there are some situations on partitioned machines with a hypervisor where the window may not start at 0. This fixes the problem by allocating space for the range from 0 to the end of the I/O window. That is, hose->io_base_virt contains the virtual address for I/O port 0 on the PCI bus, and thus the assumption that hose->io_base_virt - pci_io_base is the offset between the "global" I/O port numbers (those in the PCI device resources) and the I/O port numbers on the PCI bus is maintained. For PCI host bridges that are present at boot, we only map the portion of that range that correspond to the bridge's I/O window. For bridges added after boot we ioremap the range from 0 to the end of the I/O window, for now; in fact hot-added bridges should be using reserve_phb_iospace() and __ioremap_explicit (so they get sensible global port numbers), but we don't have the infrastructure yet to do that (basically a free_phb_iospace() routine plus appropriate locking). Interestingly, this makes the two arms of the if statement in get_bus_io_range do almost exactly the same thing; that function could now be simplified in a further patch. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SCSI] esp_scsi: Fix section mismatch warnings. [VIDEO] sunxvr2500: Fix PCI device ID table.
2007-05-07Fix bluetooth HCI sysfs compileLinus Torvalds
More fallout from the removal of "struct subsystem" from the core device model. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07[SCSI] esp_scsi: Fix section mismatch warnings.Martin Habets
Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-07[VIDEO] sunxvr2500: Fix PCI device ID table.David S. Miller
Noticed by Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] update memory attribute aliasing documentation & test cases [IA64] fail mmaps that span areas with incompatible attributes [IA64] allow WB /sys/.../legacy_mem mmaps [IA64] make ioremap avoid unsupported attributes [IA64] rename ioremap variables to match i386 [IA64] relax per-cpu TLB requirement to DTC [IA64] remove per-cpu ia64_phys_stacked_size_p8 [IA64] Fix example error injection program [IA64] Itanium MC Error Injection Tool: pal_mc_error_inject() interface [IA64] Itanium MC Error Injection Tool: Makefile changes [IA64] Itanium MC Error Injection Tool: Driver sysfs interface [IA64] Itanium MC Error Injection Tool: Doc and sample application [IA64] Itanium MC Error Injection Tool: Kernel configuration
2007-05-07Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux: gfs2: nfs lock support for gfs2 lockd: add code to handle deferred lock requests lockd: always preallocate block in nlmsvc_lock() lockd: handle test_lock deferrals lockd: pass cookie in nlmsvc_testlock lockd: handle fl_grant callbacks lockd: save lock state on deferral locks: add fl_grant callback for asynchronous lock return nfsd4: Convert NFSv4 to new lock interface locks: add lock cancel command locks: allow {vfs,posix}_lock_file to return conflicting lock locks: factor out generic/filesystem switch from setlock code locks: factor out generic/filesystem switch from test_lock locks: give posix_test_lock same interface as ->lock locks: make ->lock release private data before returning in GETLK case locks: create posix-to-flock helper functions locks: trivial removal of unnecessary parentheses
2007-05-07Fix up SLUB compileLinus Torvalds
The newly merged SLUB allocator patches had been generated before the removal of "struct subsystem", and ended up applying fine, but wouldn't build based on the current tree as a result. Fix up that merge error - not that SLUB is likely really ready for showtime yet, but at least I can fix the trivial stuff. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (34 commits) [GFS2] Uncomment sprintf_symbol calling code [DLM] lowcomms style [GFS2] printk warning fixes [GFS2] Patch to fix mmap of stuffed files [GFS2] use lib/parser for parsing mount options [DLM] Lowcomms nodeid range & initialisation fixes [DLM] Fix dlm_lowcoms_stop hang [DLM] fix mode munging [GFS2] lockdump improvements [GFS2] Patch to detect corrupt number of dir entries in leaf and/or inode blocks [GFS2] bz 236008: Kernel gpf doing cat /debugfs/gfs2/xxx (lock dump) [DLM] fs/dlm/ast.c should #include "ast.h" [DLM] Consolidate transport protocols [DLM] Remove redundant assignment [GFS2] Fix bz 234168 (ignoring rgrp flags) [DLM] change lkid format [DLM] interface for purge (2/2) [DLM] add orphan purging code (1/2) [DLM] split create_message function [GFS2] Set drop_count to 0 (off) by default ...
2007-05-07Merge branch 'drm-patches' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/i915: Add 965GM pci id update drm: just use io_remap_pfn_range on all archs.. drm: fix DRM_CONSISTENT mapping drm: fix up mmap locking in preparation for ttm changes drm: fix driver deadlock with AIGLX and reclaim_buffers_locked drm: fix warning in drm_fops.c drm: allow for more generic drm ioctls drm: fix alpha domain handling via: fix CX700 pci id drm: make drm_io_prot static. drm: remove via_mm.h drm: add missing NULL assignment drm/radeon: Fix u32 overflows when determining AGP base address in card space. drm: port over use_vmalloc code from git hashtab drm: fix crash with fops lock and fixup sarea/page size locking drm: bring bufs code from git tree. drm: move protection stuff into separate function drm: Use ARRAY_SIZE macro when appropriate drm: update README.drm (bugzilla #7933) drm: remove unused exports
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: rfkill: add support for input key to control wireless radio [NET] net/core: Fix error handling [TG3]: Update version and reldate. [TG3]: Eliminate spurious interrupts. [TG3]: Add ASPM workaround. [Bluetooth] Correct SCO buffer for another Broadcom based dongle [Bluetooth] Add support for Targus ACB10US USB dongle [Bluetooth] Disconnect L2CAP connection after last RFCOMM DLC [Bluetooth] Check that device is in rfcomm_dev_list before deleting [Bluetooth] Use in-kernel sockets API [Bluetooth] Attach host adapters to the Bluetooth bus [Bluetooth] Fix L2CAP and HCI setsockopt() information leaks
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SERIAL] sunsu: Fix section mismatch warnings. [SPARC64]: pgtable_cache_init() should be __init. [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/prom.c [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/pci.c [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/console.c [MM]: sparse_init() should be __init. [SPARC64]: Update defconfig. [VIDEO]: Add Sun XVR-2500 framebuffer driver. [VIDEO]: Add Sun XVR-500 framebuffer driver. [SPARC64]: SUN4U PCI-E controller support. [SPARC]: Fix comment typo in smp4m_blackbox_current(). [SCSI] SUNESP: sun_esp.c needs linux/delay.h Fix up conflict in arch/sparc64/mm/init.c manually due to removal of pgtable_cache_init() through the -mm patches (even though that patch was also by David ;) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IPoIB: Convert to NAPI IB: Return "maybe missed event" hint from ib_req_notify_cq() IB: Add CQ comp_vector support IB/ipath: Fix a race condition when generating ACKs IB/ipath: Fix two more spin lock problems IB/fmr_pool: Add prefix to all printks IB/srp: Set proc_name IB/srp: Add orig_dgid sysfs attribute to scsi_host IPoIB/cm: Don't crash if remote side uses one QP for both directions RDMA/cxgb3: Support for new abort logic RDMA/cxgb3: Initialize cpu_idx field in cpl_close_listserv_req message RDMA/cxgb3: Fail qp creation if the requested max_inline is too large RDMA/cxgb3: Fix TERM codes IPoIB/cm: Fix error handling in ipoib_cm_dev_open() IB/ipath: Don't corrupt pending mmap list when unmapped objects are freed IB/mthca: Work around kernel QP starvation IB/ipath: Don't put QP in timeout queue if waiting to send IB/ipath: Don't call spin_lock_irq() from interrupt context
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (38 commits) sh: R7785RP board updates. sh: Update r7780rp defconfig. sh: Add die chain notifiers. sh: Fix APM emulation on hp6xx. sh: Wire up more IRQs for SH7709. sh: Solution Engine 7722 board support. sh: Fix r7780rp build. sh: kdump support. sh: Move clock reporting to its own proc entry. sh: Solution Engine SH7705 board and CPU updates. serial: sh-sci: Fix module clock refcount for serial console. serial: sh-sci: Fix module clock refcounting. sh: SH7722 clock framework support. sh: hp6xx pata_platform support. sh: Obey CONFIG_HZ for HZ definition. sh: Fix fstatat64() syscall. sh: se7780 PCI support. sh: SH7780 Solution Engine board support. sh: Add a dummy SH-4 PCIC fixup. sh: Tidy up L-BOX area5 addresses. ...
2007-05-07spi_s3c24xx.c: Fix buildArnaud Patard
Commit a836f5856ae46ccb2464ea76031ea05ae967b832 removes the shutdown member of the bitbang structure, breaking the build of spi_s3c24xx.c. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07rename TANBAC TB0219 configYoichi Yuasa
Rename config for TANBAC TB0219 GPIO support to something more appropriate. Fixes this: drivers/char/Kconfig:906:warning: type of 'TANBAC_TB0219' redefined from 'boolean' to 'tristate' drivers/char/Kconfig:907:warning: choice values currently only support a single prompt Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07ehci-ps3, ohci-ps3: fix compilationGeoff Levand
As seen on powerpc-cell et al: CC [M] drivers/usb/host/ehci-hcd.o In file included from drivers/usb/host/ehci-hcd.c:941: drivers/usb/host/ehci-ps3.c:79: error: conflicting types for 'dev_dbg' include/linux/device.h:576: error: previous definition of 'dev_dbg' was here make[4]: *** [drivers/usb/host/ehci-hcd.o] Error 1 CC [M] drivers/usb/host/ohci-hcd.o In file included from drivers/usb/host/ohci-hcd.c:921: drivers/usb/host/ohci-ps3.c:83: error: conflicting types for 'dev_dbg' include/linux/device.h:576: error: previous definition of 'dev_dbg' was here dev_dbg() will check format string for you in dummy case also, so remove buggers. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg KH <greg@kroah.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Fix ppp_deflate issues with recent zlib_inflate changesRichard Purdie
The last zlib_inflate update broke certain corner cases for ppp_deflate decompression handling. This patch fixes some logic to make things work properly again. Users other than ppp_deflate (the only Z_PACKET_FLUSH user) should be unaffected. Fixes bug 8405 (confirmed by Stefan) Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Cc: Stefan Wenk <stefan.wenk@gmx.at> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07cx88-video build fixAndrew Morton
alpha: drivers/media/video/cx88/cx88-video.c: In function 'cx8800_initdev': drivers/media/video/cx88/cx88-video.c:1782: error: 'DMA_32BIT_MASK' undeclared (first use in this function) drivers/media/video/cx88/cx88-video.c:1782: error: (Each undeclared identifier is reported only once drivers/media/video/cx88/cx88-video.c:1782: error: for each function it appears in.) Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07xtensa: strlcpy is smart enoughJean Delvare
strlcpy already accounts for the trailing zero in its length computation, so there is no need to substract one to the buffer size. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07v850: generic timekeeping conversionjohn stultz
Convert an arch that does not currently implement sub-jiffy timekeeping to use the generic timekeeping code. v850 looks like it has some intent to implement sub-jiffy timekeeping, so it may not yet be appropriate to try to convert, but I figured I'd get the maintainer's input and submit the patch for comment. Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: fix prototypesPaolo 'Blaisorblade' Giarrusso
Declare strlcpy and strlcat more correctly. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: virtualized time fixJeff Dike
With the current timekeeping, !CONFIG_UML_REAL_TIME_CLOCK has inconsistent behavior. Previously, gettimeofday could be (and was) isolated from the clock ticking. Now, it's not, so when CONFIG_UML_REAL_TIME_CLOCK is disabled, gettimeofday must progress in lockstep with the clock, making it fully virtual. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: out of tmpfs space error clarificationJeff Dike
It turns out that the message complaining about a lack of tmpfs space on the host can be misunderstood as referring to the UML. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: only flush areas covered by VMAJeff Dike
When doing a full address space flush, only look at areas covered by a VMA. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: more page fault path trimmingJeff Dike
More trimming of the page fault path. Permissions are passed around in a single int rather than one bit per int. The permission values are copied from libc so that they can be passed to mmap and mprotect without any further conversion. The register sets used by do_syscall_stub and copy_context_skas0 are initialized once, at boot time, rather than once per call. wait_stub_done checks whether it is getting the signals it expects by comparing the wait status to a mask containing bits for the signals of interest rather than comparing individually to the signal numbers. It also has one check for a wait failure instead of two. The caller is expected to do the initial continue of the stub. This gets rid of an argument and some logic. The fname argument is gone, as that can be had from a stack trace. user_signal() is collapsed into userspace() as it is basically one or two lines of code afterwards. The physical memory remapping stuff is gone, as it is unused. flush_tlb_page is inlined. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: eliminate a piece of debugging codeJeff Dike
I missed removing another piece of debugging in an earlier patch. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: speed page fault pathJeff Dike
Give the page fault code a specialized path. There is only one page to look at, so there's no point in going into the general page table walking code. There's only going to be one host operation, so there are no opportunities for merging. So, we go straight to the pte we want, figure out what needs doing, and do it. While I was in here, I fixed the wart where the address passed to unmap was a void *, but an unsigned long to map and protect. This gives me just under 10% on a kernel build. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: aIO deadlock avoidanceJeff Dike
Allow deadlocks to be avoided in the AIO code by setting the pipe to the I/O thread non-blocking. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: rename os_{read_write}_file_k back to os_{read_write}_fileJeff Dike
Rename os_{read_write}_file_k back to os_{read_write}_file, delete the originals and their bogus infrastructure, and fix all the callers. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: remove debugging remnantsJeff Dike
I accidentally left the remnants of some debugging in an earlier patch. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: formatting fixes around os_{read_write}_file callersJeff Dike
Formatting fixes ahead of renaming os_{read_write}_file_k to os_{read_write}_file and fixing all the callers. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: change remaining callers of os_{read_write}_fileJeff Dike
Convert all remaining os_{read_write}_file users to use the simple {read,write} wrappers, os_{read_write}_file_k. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: don't try to handle signals on initial process stackJeff Dike
Code running on the initial UML stack can't receive or process signals since current must be valid when IRQs are handled, and there is no current for this stack. So, instead of using UML_LONGJMP and UML_SETJMP, which are careful to save and restore signal state, and, as a side-effect, handle any deferred signals, start_idle_thread must use the bare equivalents, which don't do anything with signals. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07uml: dump core on panicJeff Dike
Dump core after a panic. This will provide better debugging information than is currently available. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>