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2009-04-03Merge branch 'ipi-for-linus' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: s390: remove arch specific smp_send_stop() panic: clean up kernel/panic.c panic, smp: provide smp_send_stop() wrapper on UP too panic: decrease oops_in_progress only after having done the panic generic-ipi: eliminate WARN_ON()s during oops/panic generic-ipi: cleanups generic-ipi: remove CSD_FLAG_WAIT generic-ipi: remove kmalloc() generic IPI: simplify barriers and locking
2009-04-02Allow rwlocks to re-enable interruptsRobin Holt1-0/+3
Pass the original flags to rwlock arch-code, so that it can re-enable interrupts if implemented for that architecture. Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs which just do the same thing as non-flags variants. Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-arch@vger.kernel.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02Simplify copy_thread()Alexey Dobriyan1-1/+1
First argument unused since 2.3.11. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02generic debug pagealloc: build fixAkinobu Mita1-9/+0
This fixes a build failure with generic debug pagealloc: mm/debug-pagealloc.c: In function 'set_page_poison': mm/debug-pagealloc.c:8: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'clear_page_poison': mm/debug-pagealloc.c:13: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'page_poison': mm/debug-pagealloc.c:18: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: At top level: mm/debug-pagealloc.c:120: error: redefinition of 'kernel_map_pages' include/linux/mm.h:1278: error: previous definition of 'kernel_map_pages' was here mm/debug-pagealloc.c: In function 'kernel_map_pages': mm/debug-pagealloc.c:122: error: 'debug_pagealloc_enabled' undeclared (first use in this function) by fixing - debug_flags should be in struct page - define DEBUG_PAGEALLOC config option for all architectures Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-01Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2-0/+4
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] cio: online_store - trigger recognition for boxed devices [S390] cio: disallow online setting of device in transient state [S390] cio: introduce notifier for boxed state [S390] cio: introduce ccw_device_schedule_sch_unregister [S390] cio: wake up on failed recognition [S390] fix hypfs build failure [PATCH] sysrq: include interrupt.h instead of irq.h
2009-04-01generic debug pageallocAkinobu Mita2-0/+4
CONFIG_DEBUG_PAGEALLOC is now supported by x86, powerpc, sparc64, and s390. This patch implements it for the rest of the architectures by filling the pages with poison byte patterns after free_pages() and verifying the poison patterns before alloc_pages(). This generic one cannot detect invalid page accesses immediately but invalid read access may cause invalid dereference by poisoned memory and invalid write access can be detected after a long delay. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-31[S390] cio: introduce notifier for boxed stateSebastian Ott1-0/+2
If a ccw device did not respond in time during internal io, we set it into boxed state. With this patch we have the following behaviour: * the ccw driver will get a notification if the device was online and goes into the boxed state * if the device was disconnected and got boxed nothing special is to be done (it will be handled in reprobing later) * if the device got boxed while initial sensing it will be unregistered Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-31[S390] fix hypfs build failureHeiko Carstens1-0/+2
Fix build breakage below which probably was introduced with ("rcu: don't include unnecessary headers, allow kmemtrace w/ tracepoints"). CC arch/s390/hypfs/hypfs_diag.o arch/s390/hypfs/hypfs_diag.c: In function 'diag204_free_buffer': arch/s390/hypfs/hypfs_diag.c:364: error: implicit declaration of function 'free_pages' arch/s390/hypfs/hypfs_diag.c: In function 'diag204_alloc_rbuf': arch/s390/hypfs/hypfs_diag.c:384: error: implicit declaration of function '__get_free_pages' arch/s390/hypfs/hypfs_diag.c:384: error: 'GFP_KERNEL' undeclared (first use in this function) arch/s390/hypfs/hypfs_diag.c:384: error: (Each undeclared identifier is reported only once arch/s390/hypfs/hypfs_diag.c:384: error: for each function it appears in.) Reported-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-27Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (37 commits) fs: avoid I_NEW inodes Merge code for single and multiple-instance mounts Remove get_init_pts_sb() Move common mknod_ptmx() calls into caller Parse mount options just once and copy them to super block Unroll essentials of do_remount_sb() into devpts vfs: simple_set_mnt() should return void fs: move bdev code out of buffer.c constify dentry_operations: rest constify dentry_operations: configfs constify dentry_operations: sysfs constify dentry_operations: JFS constify dentry_operations: OCFS2 constify dentry_operations: GFS2 constify dentry_operations: FAT constify dentry_operations: FUSE constify dentry_operations: procfs constify dentry_operations: ecryptfs constify dentry_operations: CIFS constify dentry_operations: AFS ...
2009-03-27generic compat_sys_ustatChristoph Hellwig1-1/+1
Due to a different size of ino_t ustat needs a compat handler, but currently only x86 and mips provide one. Add a generic compat_sys_ustat and switch all architectures over to it. Instead of doing various user copy hacks compat_sys_ustat just reimplements sys_ustat as it's trivial. This was suggested by Arnd Bergmann. Found by Eric Sandeen when running xfstests/017 on ppc64, which causes stack smashing warnings on RHEL/Fedora due to the too large amount of data writen by the syscall. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-03-26Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds48-726/+1688
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits) [S390] remove duplicated #includes [S390] cpumask: use mm_cpumask() wrapper [S390] cpumask: Use accessors code. [S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits. [S390] cpumask: remove cpu_coregroup_map [S390] fix clock comparator save area usage [S390] Add hwcap flag for the etf3 enhancement facility [S390] Ensure that ipl panic notifier is called late. [S390] fix dfp elf hwcap/facility bit detection [S390] smp: perform initial cpu reset before starting a cpu [S390] smp: fix memory leak on __cpu_up [S390] ipl: Improve checking logic and remove switch defaults. [S390] s390dbf: Remove needless check for NULL pointer. [S390] s390dbf: Remove redundant initilizations. [S390] use kzfree() [S390] BUG to BUG_ON changes [S390] zfcpdump: Prevent zcore from beeing built as a kernel module. [S390] Use csum_partial in checksum.h [S390] cleanup lowcore.h [S390] eliminate ipl_device from lowcore ...
2009-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds1-0/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits) ixgbe: Allow Priority Flow Control settings to survive a device reset net: core: remove unneeded include in net/core/utils.c. e1000e: update version number e1000e: fix close interrupt race e1000e: fix loss of multicast packets e1000e: commonize tx cleanup routine to match e1000 & igb netfilter: fix nf_logger name in ebt_ulog. netfilter: fix warning in ebt_ulog init function. netfilter: fix warning about invalid const usage e1000: fix close race with interrupt e1000: cleanup clean_tx_irq routine so that it completely cleans ring e1000: fix tx hang detect logic and address dma mapping issues bridge: bad error handling when adding invalid ether address bonding: select current active slave when enslaving device for mode tlb and alb gianfar: reallocate skb when headroom is not enough for fcb Bump release date to 25Mar2009 and version to 0.22 r6040: Fix second PHY address qeth: fix wait_event_timeout handling qeth: check for completion of a running recovery qeth: unregister MAC addresses during recovery. ... Manually fixed up conflicts in: drivers/infiniband/hw/cxgb3/cxio_hal.h drivers/infiniband/hw/nes/nes_nic.c
2009-03-26Merge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds9-13/+35
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (113 commits) KVM: VMX: Don't allow uninhibited access to EFER on i386 KVM: Correct deassign device ioctl to IOW KVM: ppc: e500: Fix the bug that KVM is unstable in SMP KVM: ppc: e500: Fix the bug that mas0 update to wrong value when read TLB entry KVM: Fix missing smp tlb flush in invlpg KVM: Get support IRQ routing entry counts KVM: fix sparse warnings: Should it be static? KVM: fix sparse warnings: context imbalance KVM: is_long_mode() should check for EFER.LMA KVM: VMX: Update necessary state when guest enters long mode KVM: ia64: Fix the build errors due to lack of macros related to MSI. ia64: Move the macro definitions related to MSI to one header file. KVM: fix kvm_vm_ioctl_deassign_device KVM: define KVM_CAP_DEVICE_DEASSIGNMENT KVM: ppc: Add emulation of E500 register mmucsr0 KVM: Report IRQ injection status for MSI delivered interrupts KVM: MMU: Fix another largepage memory leak KVM: SVM: set accessed bit for VMCB segment selectors KVM: Report IRQ injection status to userspace. KVM: MMU: remove assertion in kvm_mmu_alloc_page ...
2009-03-26Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller13-126/+149
Conflicts: drivers/net/wimax/i2400m/usb-notif.c
2009-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds5-86/+101
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (29 commits) crypto: sha512-s390 - Add missing block size hwrng: timeriomem - Breaks an allyesconfig build on s390: nlattr: Fix build error with NET off crypto: testmgr - add zlib test crypto: zlib - New zlib crypto module, using pcomp crypto: testmgr - Add support for the pcomp interface crypto: compress - Add pcomp interface netlink: Move netlink attribute parsing support to lib crypto: Fix dead links hwrng: timeriomem - New driver crypto: chainiv - Use kcrypto_wq instead of keventd_wq crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq crypto: api - Use dedicated workqueue for crypto subsystem crypto: testmgr - Test skciphers with no IVs crypto: aead - Avoid infinite loop when nivaead fails selftest crypto: skcipher - Avoid infinite loop when cipher fails selftest crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention crypto: api - crypto_alg_mod_lookup either tested or untested crypto: amcc - Add crypt4xx driver crypto: ansi_cprng - Add maintainer ...
2009-03-26[S390] remove duplicated #includesHuang Weiyi1-1/+0
Remove duplicated #include's in arch/s390/kernel/ipl.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cpumask: use mm_cpumask() wrapperRusty Russell3-4/+4
Makes code futureproof against the impending change to mm->cpu_vm_mask. It's also a chance to use the new cpumask_ ops which take a pointer (the older ones are deprecated, but there's no hurry for arch code). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cpumask: Use accessors code.Rusty Russell1-3/+2
Impact: use new API Use the accessors rather than frobbing bits directly. Most of this is in arch code I haven't even compiled, but is straightforward. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.Rusty Russell1-9/+9
Impact: cleanup, futureproof In fact, all cpumask ops will only be valid (in general) for bit numbers < nr_cpu_ids. So use that instead of NR_CPUS in various places (I also updated the immediate sites to use the new cpumask_ operators). This is always safe: no cpu number can be >= nr_cpu_ids, and nr_cpu_ids is initialized to NR_CPUS at boot. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cpumask: remove cpu_coregroup_mapRusty Russell2-2/+1
Impact: cleanup cpu_coregroup_mask is the New Hotness. As S/390 uses theirs internally, so we just make it static. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] fix clock comparator save area usageHeiko Carstens1-7/+4
The lowcore clock comparator save area on 64 bit machines is defined to contain only the seven most significant bits of the register. That's also why it starts at an uneven address (0x1331). The current code however writes eight bytes to the address and therefore overwrites the first byte of the access register save area. Fix this and write only seven bytes to the save area. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Add hwcap flag for the etf3 enhancement facilityAndreas Krebbel2-6/+13
The Extended Translation Facility 3 (ETF3) added instructions which allow conversions between different unicode character maps (UTF-8, UTF-32 ...). These instructions got enhanced with a later version of the ETF3 allowing malformed multibyte chars to be recognized and reported correctly. The attached patch reserves bit 8 in the elf hwcaps vector for the enhanced version of ETF3. The bit corresponds to the stfle bits 22 and 30 and will only be set if both of the stfle bits are set. Signed-off-by: Andreas Krebbel <krebbel@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Ensure that ipl panic notifier is called late.Michael Holzheu1-1/+1
The s390 ipl panic notifier will stop the system or trigger a system dump. This should be done as final action on the panic path. All other panic notifiers should be executed before. Currently we use priority 0 for the ipl notifier. In order to be called late, this patch changes the priority to INT_MIN which is the lowest possible priority. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] fix dfp elf hwcap/facility bit detectionChristian Ehrhardt1-2/+4
The old dfp detection wanted to check bit 43 (dfp high performance), but due to a wrong calculation always used to check bit 42. Additionally the "userspace expectation" is, that the dfp capability bit is set is if facility bit 42 (decimal floating point facility available) and bit 44 (perform floating point operation facility avail). The patch fixes the bit calculation and extends the check to work like: elf hw cap dfp bit = facility bits 42 (dfp) & 44 (pfpo) available Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] smp: perform initial cpu reset before starting a cpuHeiko Carstens1-7/+16
Performing an initial cpu reset makes sure all registers and tlbs of the targeted cpu are initialized and flushed. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] smp: fix memory leak on __cpu_upHeiko Carstens2-5/+3
If sigp_set_prefix fails on __cpu_up we leak the lowcore structures and async+panic stacks for the failed cpu. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] ipl: Improve checking logic and remove switch defaults.Michael Holzheu1-7/+6
A code analysis tool reported two warnings: "The expression `ipl_info.type == IPL_TYPE_FCP' is true whenever evaluated." and "Default is not possible". This patch improves the corresponding if statement logic and removes the unnecessary switch defaults. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] s390dbf: Remove needless check for NULL pointer.Michael Holzheu1-2/+1
The check for NULL pointer has already be done before. Therefore we can remove the second check. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] s390dbf: Remove redundant initilizations.Michael Holzheu1-2/+1
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] use kzfree()Johannes Weiner1-2/+1
Use kzfree() instead of memset() + kfree(). Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] BUG to BUG_ON changesStoyan Gaydarov2-4/+2
Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] zfcpdump: Prevent zcore from beeing built as a kernel module.Michael Holzheu3-5/+5
The zcore code switches to real addressing mode when creating a kernel dump. This is not possible, if it is built as a kernel module. With this patch zcore (zfcpdump) can't be built as a kernel module any more. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Use csum_partial in checksum.hFrank Munzert2-17/+3
The cksm function in system.h is duplicate to csum_partial in checksum.h. Remove cksm and use csum_partial instead. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cleanup lowcore.hMartin Schwidefsky2-323/+331
The lowcore.h header has quite a lot of whitespace damage and a rather wild collection of entries. Remove all that whitespace and tidy up the order of the lowcore fields. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] eliminate ipl_device from lowcoreMartin Schwidefsky5-10/+2
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] eliminate cpuinfo_S390 structureMartin Schwidefsky6-74/+51
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Fix comments in lowcore structureChristian Borntraeger1-2/+2
This patch fixes two addresses in the comments for the lowcore structure. Looks like an copy-paste bug. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Expose a constant for the number of words representing the CRsDan Smith2-2/+5
We need to use this value in the checkpoint/restart code and would like to have a constant instead of a magic '3'. Cc: linux-s390@vger.kernel.org Signed-off-by: Dan Smith <danms@us.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] use compiler builtin versions of strlen/strcpy/strcatHeiko Carstens2-0/+16
Use builtin variants if gcc 4 or newer is used to compile the kernel. Generates better code than the asm variants. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] module function call optimizationMartin Schwidefsky1-7/+12
Avoid the detour over the PLT if the branch target of a function call in a module is in the range of the bras (16-bit) or brasl (32-bit) instruction. The PLT is still generated but it is unused. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] bitops: remove likely annotationsHeiko Carstens1-6/+6
likely/unlikely profiling revealed that none of the branches in bitops is taken likely or unlikely. So remove the annotations. In addition the generated code is shorter. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] remove duplicate nul-termination of stringHendrik Brueckner1-1/+0
strlcpy() does already NUL-terminate the destination string. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] allow usage of string functions in linux/string.hRusty Russell1-1/+7
In introducing a trivial "strstarts()" function in linux/string.h, we hit the following error on s390: In file included from include/linux/bitmap.h:8, from include/linux/cpumask.h:142, from include/linux/smp.h:12, from /home/rusty/devel/kernel/patches/linux-2.6/arch/s390/include/asm/spinlock.h:14, from include/linux/spinlock.h:88, from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/stat.h:60, from include/linux/module.h:10, from arch/s390/lib/string.c:13: include/linux/string.h: In function 'strstarts': include/linux/string.h:124: error: implicit declaration of function 'strlen' include/linux/string.h:124: warning: incompatible implicit declaration of built-in function 'strlen' Because when including asm/string.h from arch/s390/lib/string.c we don't declare the string ops we are about to define, and linux/string.h barfs. The fix is to declare them in this IN_ARCH_STRING_C case, but in general I wonder if there's a neater fix. Reported-by: linux-next Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] qdio: report SIGA errors directlyJan Glauber1-0/+1
Errors from SIGA instructions are stored in the per queue qdio_error and reported back when the queue handler is called. That opens a race when multiple error conditions occur simultanously. Report SIGA errors immediately in the return value of do_QDIO so the upper layer can react and SIGA errors no longer interfere with other errors. Move the SIGA error handling in qeth from the outbound handler to qeth_flush_buffers. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
2009-03-26[S390] kernel: Disable switch_amode by defaultGerald Schaefer1-4/+0
Disable switch_amode by default because pagetable walk on pre z9 hardware has negative performance impact. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] clock sync mode flagsMartin Schwidefsky1-27/+44
The clock sync mode flag CLOCK_SYNC_STP is not cleared when stp is set offline. In this case the get_sync_clock() function returns -EACCESS and the dasd driver will block all i/o until stp is enabled again. In addition get_sync_clock can return -EACCESS if the clock is not in sync instead of -EAGAIN. Rework the stp/etr online handling to fix these problems. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] move EXPORT_SYMBOLs to definitionsHeiko Carstens6-44/+19
Move all EXPORT_SYMBOLs to their corresponding definitions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] convert bitmap definitions to CHeiko Carstens3-57/+50
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Remove CONFIG_MACHCHK_WARNING.Heiko Carstens2-25/+11
Everybody enables it so there is no point for an extra config option. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] split/move machine check handler codeHeiko Carstens6-5/+520
Split machine check handler code and move it to cio and kernel code where it belongs to. No functional change. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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