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2009-03-26[S390] Fix appldata build break with !NETSachin Sant
With CONFIG_NET not set appldata build breaks on s390. arch/s390/appldata/built-in.o: In function appldata_get_net_sum_data: appldata_net_sum.c:(.text+0x2684): undefined reference to dev_get_stats appldata_net_sum.c:(.text+0x2688): undefined reference to init_net appldata_net_sum.c:(.text+0x268c): undefined reference to init_net appldata_net_sum.c:(.text+0x2694): undefined reference to dev_base_lock The following patch fixes the issue for me. Signed-off-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>
2009-03-26[S390] ftrace: dont trace machine check handlerHeiko Carstens
The ftrace code is currently not reentrant, so we better don't trace our machine check handler. Machine checks are handled like NMIs on s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Fix hypervisor detection for KVMChristian Borntraeger
Currently we use the cpuid (via STIDP instruction) to recognize LPAR, z/VM and KVM. The architecture states, that bit 0-7 of STIDP returns all zero, and if STIDP is executed in a virtual machine, the VM operating system will replace bits 0-7 with FF. KVM should not use FE to distinguish z/VM from KVM for interested guests. The proper way to detect the hypervisor is the STSI (Store System Information) instruction, which return information about the hypervisors via function code 3, selector1=2, selector2=2. This patch changes the detection routine of Linux to use STSI instead of STIDP. This detection is earlier than bootmem, we have to use a static buffer. Since STSI expects a 4kb block (4kb aligned) this patch also changes the init.data alignment for s390. As this section will be freed during boot, this should be no problem. Patch is tested with LPAR, z/VM, KVM on LPAR, and KVM under z/VM. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] check addressing mode in s390_enable_sieCarsten Otte
The sie instruction requires address spaces to be switched to run proper. This patch verifies that this is the case in s390_enable_sie, otherwise the kernel would crash badly as soon as the process runs into sie. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] lockdep: trace hardirq off in smp_send_stopChristian Borntraeger
With lockdep we got the following trace after a panic: Badness at /home/autobuild/BUILD/linux-2.6.28-20090204/kernel/lockdep.c:2878 [...] Call Trace: [<0000000000176334>] lock_acquire+0x54/0xbc [<000000000050b4fe>] __atomic_notifier_call_chain+0x6e/0xdc [<000000000050b59c>] atomic_notifier_call_chain+0x30/0x44 [<0000000000504274>] panic+0xd0/0x1e8 [...] INFO: lockdep is turned off. Last Breaking-Event-Address: [<0000000000170e62>] check_flags+0xae/0x15c possible reason: unannotated irqs-off. lockdep is right. We missed a trace_hardirq_off in our smp_send_stop function and smp_send_stop is called before the panic call chain. Reported-by: Mijo <Safradin mijo@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] hvc_iucv: Provide IUCV z/VM user ID filteringHendrik Brueckner
This patch introduces the kernel parameter hvc_iucv_allow= that specifies a comma-separated list of z/VM user IDs. If specified, the z/VM IUCV hypervisor console device driver accepts IUCV connections from listed z/VM user IDs only. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] hvc_iucv: Update and add missing kernel messagesHendrik Brueckner
If the hvc_iucv= kernel parameter specifies a value that is not valid, display an error message. Minor changes to existing kernel messages. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] cputime: initialize per thread timer values on forkHeiko Carstens
Initialize per thread timer values instead of just copying them from the parent. That way it is easily possible to tell how much time a thread spent in user/system context. Doesn't fix a bug, this is just for debugging purposes. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] arch/s390/kernel/process.c: fix whitespace damageHeiko Carstens
Fix all the whitespace damage in process.c, especially copy_thread(). Next patch will add code to copy_thread() which needs to 'fixed' first. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] delete drivers/s390/ebcdic.cHeiko Carstens
Dead file. Seems to be a leftover from the 2.4->2.5 conversion. The used and uptodate version of this file is in arch/s390/kernel. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] move sysinfo.c from drivers/s390 to arch/s390/kernelHeiko Carstens
All in sysinfo.c is core kernel code and not driver code. So move it to arch/s390/kernel. Also includes some small cleanups. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] dasd: message cleanupStefan Haberland
Moved some Messages into s390 debug feature and changed remaining messages to use the dev_xxx and pr_xxx macros. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] dasd: add High Performance FICON supportStefan Weinhuber
To support High Performance FICON, the DASD device driver has to translate I/O requests into the new transport mode control words (TCW) instead of the traditional (command mode) CCW requests. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] dasd: add large volume supportStefan Weinhuber
The dasd device driver will now support ECKD devices with more then 65520 cylinders. In the traditional ECKD adressing scheme each track is addressed by a 16-bit cylinder and 16-bit head number. The new addressing scheme makes use of the fact that the actual number of heads is never larger then 15, so 12 bits of the head number can be redefined to be part of the cylinder address. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] dasd_eckd / Write format R0 is now allowed BBJean-Baptiste Joret
Permission is now granted to the subsystem to format write R0 with: * an ID = CCHHR, where CC = physical cylinder number, HH = physical head number, and R = 0 * a key length of zero * a data length of eight * a data field containing all zeros Signed-off-by: Jean-Baptiste Joret <joret@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] dasd: enable compat ioctlsHeiko Carstens
All of the ioctls are compatible. Just enable them. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] page fault: invoke oom-killerHeiko Carstens
s390 arch backend for 1c0fe6e3bda0464728c23c8d84aa47567e8b716c "mm: invoke oom-killer from page fault". Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[S390] Automatic IPL after dumpFrank Munzert
Provide new shutdown action "dump_reipl" for automatic ipl after dump. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-03-26[S390] fix dump_stack vs. %p and (null)Christian Borntraeger
The s390 implemenation of dump_stack uses %p to display stack content. Since d97106ab53f812910a62d18afb9dbe882819c1ba (Make %p print '(null)' for NULL pointers) this causes a strange output for dump_stack: [...] Process basename (pid: 8822, task: 00000000b2ece038, ksp: 00000000b24d7b38) 04000000b5685c00 00000000b24d7760 0000000000000002 (null) 00000000b24d7800 00000000b24d7778 00000000b24d7778 00000000001052fe (null) 00000000b24d7b38 (null) 000000000000000a 000000000000000d (null) 00000000b24d7760 00000000b24d77d8 000000000051a7e8 00000000001052fe 00000000b24d7760 00000000b24d77b0 Call Trace: [...] This patch changes our dump_stack to use the appropriate %x format. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-03-26[ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP definedEric Miao
arch/arm/plat-pxa/mfp.c is not intended to be use by PXA25x/PXA27x, make it explicit here only for use by PXA3xx or ARCH_MMP. Reported-by: Guennadi Liakhovestski <g.liakhovestski@gmx.de> Reported-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-26ctnetlink: compute generic part of event more acuratelyHolger Eitzenberger
On a box with most of the optional Netfilter switches turned off some of the NLAs are never send, e. g. secmark, mark or the conntrack byte/packet counters. As a worst case scenario this may possibly still lead to ctnetlink skbs being reallocated in netlink_trim() later, loosing all the nice effects from the previous patches. I try to solve that (at least partly) by correctly #ifdef'ing the NLAs in the computation. Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-03-26Get rid of pdflush_operation() in emergency sync and remountJens Axboe
Opencode a cheasy approach with kevent. The idea here is that we'll add some generic delayed work infrastructure, which probably wont be based on pdflush (or maybe it will, in which case we can just add it back). This is in preparation for getting rid of pdflush completely. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26btrfs: get rid of current_is_pdflush() in btrfs_btree_balance_dirtyJens Axboe
Chris says it's safe to kill. Acked-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26Move the default_backing_dev_info out of readahead.c and into backing-dev.cJens Axboe
It really makes no sense to have it in readahead.c, so move it where it belongs. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26block: Repeated lines in switching-sched.txtAvishay Traeger
These lines appear in this file twice - removed one occurrence. Signed-off-by: Avishay Traeger <avishay@il.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26bsg: Remove bogus check against request_queue->max_sectorsBoaz Harrosh
bsg submits REQ_TYPE_BLOCK_PC so the right check is max_hw_sectors. But I've removed this check because right after, bsg proceeds with calling blk_rq_map_user() which does all the right checks. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26block: WARN in __blk_put_request() for potential bio leakBoaz Harrosh
Put a WARN_ON in __blk_put_request if it is about to leak bio(s). This is a serious bug that can happen in error handling code paths. For this to work I have fixed a couple of places in block/ where request->bio != NULL ownership was not honored. And a small cleanup at sg_io() while at it. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26loop: fix circular locking in loop_clr_fd()Nikanth Karthikesan
With CONFIG_PROVE_LOCKING enabled $ losetup /dev/loop0 file $ losetup -o 32256 /dev/loop1 /dev/loop0 $ losetup -d /dev/loop1 $ losetup -d /dev/loop0 triggers a [ INFO: possible circular locking dependency detected ] I think this warning is a false positive. Open/close on a loop device acquires bd_mutex of the device before acquiring lo_ctl_mutex of the same device. For ioctl(LOOP_CLR_FD) after acquiring lo_ctl_mutex, fput on the backing_file might acquire the bd_mutex of a device, if backing file is a device and this is the last reference to the file being dropped . But it is guaranteed that it is impossible to have a circular list of backing devices.(say loop2->loop1->loop0->loop2 is not possible), which guarantees that this can never deadlock. So this warning should be suppressed. It is very difficult to annotate lockdep not to warn here in the correct way. A simple way to silence lockdep could be to mark the lo_ctl_mutex in ioctl to be a sub class, but this might mask some other real bugs. @@ -1164,7 +1164,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, struct loop_device *lo = bdev->bd_disk->private_data; int err; - mutex_lock(&lo->lo_ctl_mutex); + mutex_lock_nested(&lo->lo_ctl_mutex, 1); switch (cmd) { case LOOP_SET_FD: err = loop_set_fd(lo, mode, bdev, arg); Or actually marking the bd_mutex after lo_ctl_mutex as a sub class could be a better solution. Luckily it is easy to avoid calling fput on backing file with lo_ctl_mutex held, so no lockdep annotation is required. If you do not like the special handling of the lo_ctl_mutex just for the LOOP_CLR_FD ioctl in lo_ioctl(), the mutex handling could be moved inside each of the individual ioctl handlers and I could send you another patch. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26sparc64: Flush TLB before releasing pages.David S. Miller
tlb_flush_mmu() needs to flush pending TLB entries before processing the mmu_gather ->pages list. Noticed by Benjamin Herrenschmidt. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-03-26ixgbe: Allow Priority Flow Control settings to survive a device resetPJ Waskiewicz
When changing DCB parameters, ixgbe needs to have the MAC reset. The way the flow control code is setup today, PFC will be disabled on a reset. This patch adds a new flow control type for PFC, and then has the netlink layer take care of toggling which type of flow control to enable. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26net: core: remove unneeded include in net/core/utils.c.Rami Rosen
Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000e: update version numberJesse Brandeburg
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000e: fix close interrupt raceJesse Brandeburg
As noticed by Alan Cox, it is possible for e1000e to exit its interrupt handler or NAPI with interrupts enabled even when the driver is unloading or being configured administratively down. fix related to fix for: http://bugzilla.kernel.org/show_bug.cgi?id=12876 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000e: fix loss of multicast packetsJesse Brandeburg
e1000e (and e1000, igb, ixgbe, ixgb) all do a series of operations each time a multicast address is added. The flow goes something like 1) stack adds one multicast address 2) stack passes whole current list of unicast and multicast addresses to driver 3) driver clears entire list in hardware 4) driver programs each multicast address using iomem in a loop This was causing multicast packets to be lost during the reprogramming process. reference with test program: http://kerneltrap.org/mailarchive/linux-netdev/2009/3/14/5160514/thread Thanks to Dave Boutcher for his report and test program. This driver fix prepares an array all at once in memory and programs it in one shot to the hardware, not requiring an "erase" cycle. It would still be possible for packets to be dropped while the receiver is off during reprogramming. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Dave Boutcher <daveboutcher@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000e: commonize tx cleanup routine to match e1000 & igbAlexander Duyck
This change updates the e1000e tx cleanup routine to more closely match what already exists in igb and e1000. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26Gemini: Add support for Teltonika RUT100Paulius Zaleckas
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
2009-03-26Gemini: gpiolib based GPIO support v2Paulius Zaleckas
v2: - update copyrights Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
2009-03-26MAINTAINERS: add myself as Gemini architecture maintainerPaulius Zaleckas
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
2009-03-26ARM: Add Gemini architecture v3Paulius Zaleckas
Adds support for Cortina Systems Gemini family CPUs: http://www.cortina-systems.com/products/category/18 v3: - fixed __io(a) to be defined as __typesafe_io(a) v2: - #include <asm/io.h> -> <linux/io.h> - remove asm/system.h include - revorked mm.c to use named initializers - removed "empty" dma.h - updated copyrights Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
2009-03-26netfilter: fix nf_logger name in ebt_ulog.Eric Leblond
This patch renames the ebt_ulog nf_logger from "ulog" to "ebt_ulog" to be in sync with other modules naming. As this name was currently only used for informational purpose, the renaming should be harmless. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26netfilter: fix warning in ebt_ulog init function.Eric Leblond
The ebt_ulog module does not follow the fixed convention about function return. Loading the module is triggering the following message: sys_init_module: 'ebt_ulog'->init suspiciously returned 1, it should follow 0/-E convention sys_init_module: loading module anyway... Pid: 2334, comm: modprobe Not tainted 2.6.29-rc5edenwall0-00883-g199e57b #146 Call Trace: [<c0441b81>] ? printk+0xf/0x16 [<c02311af>] sys_init_module+0x107/0x186 [<c0202cfa>] syscall_call+0x7/0xb The following patch fixes the return treatment in ebt_ulog_init() function. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26netfilter: fix warning about invalid const usageEric Leblond
This patch fixes the declaration of the logger structure in ebt_log and ebt_ulog: I forgot to remove the const option from their declaration in the commit ca735b3aaa945626ba65a3e51145bfe4ecd9e222 ("netfilter: use a linked list of loggers"). Pointed-out-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000: fix close race with interruptJesse Brandeburg
this is in regards to http://bugzilla.kernel.org/show_bug.cgi?id=12876 where it appears that e1000 can leave its interrupt enabled after exiting the driver. Fix the bug by making the interrupt enable paths more aware of the driver exiting. Thanks to Alan Cox for the poke and initial investigation. CC: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000: cleanup clean_tx_irq routine so that it completely cleans ringAlexander Duyck
The tx cleanup routine was stopping after 64 packets and this was causing issues resulting in the ring not being completely cleaned. This change updates the driver to clean the entire ring and if it doesn't it then will retry on the next pass. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26e1000: fix tx hang detect logic and address dma mapping issuesAlexander Duyck
This patch changes the dma mapping to better support skb_dma_map/skb_dma_unmap and addresses and redefines the tx hang logic to be based off of time stamp instead of if the dma field is populated Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-25bridge: bad error handling when adding invalid ether addressStephen Hemminger
This fixes an crash when empty bond device is added to a bridge. If an interface with invalid ethernet address (all zero) is added to a bridge, then bridge code detects it when setting up the forward databas entry. But the error unwind is broken, the bridge port object can get freed twice: once when ref count went to zeo, and once by kfree. Since object is never really accessible, just free it. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-26ext2: Zero our b_size in ext2_quota_read()Manish Katiyar
ext2_quota_read() doesn't initialize tmp_bh.b_size before calling ext2_get_block() where we access it. Since it is a local variable it might contain some garbage. Make sure it is filled with reasonable value before passing. Signed-off-by: Manish Katiyar <mkatiyar@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2009-03-26trivial: fix typos/grammar errors in fs/KconfigMatt LaPlante
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jan Kara <jack@suse.cz>
2009-03-26quota: Coding style fixesJan Kara
Wrap long lines, remove assignments from conditions, rewrite two overcomplicated for loops. Signed-off-by: Jan Kara <jack@suse.cz>
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