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* [IPV4]: Fix error handling for fib_insert_node callHerbert Xu2006-07-121-1/+1
| | | | | | | | The error handling around fib_insert_node was broken because we always zeroed the error before checking it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETROM] lockdep: fix false positiveRalf Baechle2006-07-121-0/+9
| | | | | | | | | | NETROM network devices are virtual network devices encapsulating NETROM frames into AX.25 which will be sent through an AX.25 device, so form a special "super class" of normal net devices; split their locks off into a separate class since they always nest. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ROSE] lockdep: fix false positiveRalf Baechle2006-07-121-0/+9
| | | | | | | | | | ROSE network devices are virtual network devices encapsulating ROSE frames into AX.25 which will be sent through an AX.25 device, so form a special "super class" of normal net devices; split their locks off into a separate class since they always nest. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AX.25]: Optimize AX.25 socket list lockRalf Baechle2006-07-123-13/+13
| | | | | | | | Right now all uses of the ax25_list_lock lock are _bh locks but knowing some code is only ever getting invoked from _bh context we can better. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPCOMP]: Fix truesize after decompressionHerbert Xu2006-07-122-2/+4
| | | | | | | | | | | | | | | The truesize check has uncovered the fact that we forgot to update truesize after pskb_expand_head. Unfortunately pskb_expand_head can't update it for us because it's used in all sorts of different contexts, some of which would not allow truesize to be updated by itself. So the solution for now is to simply update it in IPComp. This patch also changes skb_put to __skb_put since we've just expanded tailroom by exactly that amount so we know it's there (but gcc does not). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Use ipv6_addr_src_scope for link address sorting.YOSHIFUJI Hideaki2006-07-121-1/+2
| | | | | | | | | | | | | | | | | | | | | In the source address selection, the address must be sorted from global to node-local. But, ifp->scope is different from the scope for source address selection. 2001::1 fe80::1 ::1 ifp->scope 0 0x02 0x01 ipv6_addr_src_scope(&ifp->addr) 0x0e 0x02 0x01 So, we need to use ipv6_addr_src_scope(&ifp->addr) for sorting. And, for backward compatibility, addresses should be sorted from new one to old one. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP] tcp_highspeed: Fix AI updates.Xiaoliang (David) Wei2006-07-121-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | I think there is still a problem with the AIMD parameter update in HighSpeed TCP code. Line 125~138 of the code (net/ipv4/tcp_highspeed.c): /* Update AIMD parameters */ if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) { while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd && ca->ai < HSTCP_AIMD_MAX - 1) ca->ai++; } else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) { while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd && ca->ai > 0) ca->ai--; In fact, the second part (decreasing ca->ai) never decreases since the while loop's inequality is in the reverse direction. This leads to unfairness with multiple flows (once a flow happens to enjoy a higher ca->ai, it keeps enjoying that even its cwnd decreases) Here is a tentative fix (I also added a comment, trying to keep the change clear): Acked-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MAINTAINERS]: Add proper entry for TC classifierStephen Hemminger2006-07-122-2/+6
| | | | | Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETROM]: Drop lock before calling nr_destroy_socketRalf Baechle2006-07-121-1/+1
| | | | | | | | nr_destroy_socket takes the socket lock itself so it should better be called with the socket unlocked. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETROM]: Fix locking order when establishing a NETROM circuit.Ralf Baechle2006-07-121-6/+6
| | | | | | | | | | When establishing a new circuit in nr_rx_frame the locks are taken in a different order than in the rest of the stack. This should be harmless but triggers lockdep. Either way, reordering the code a little solves the issue. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AX.25]: Fix locking of ax25 protocol function list.Ralf Baechle2006-07-121-9/+9
| | | | | | | | Delivery of AX.25 frame to the layer 3 protocols happens in softirq context so locking needs to be bh-proof. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: order addresses by scopeBrian Haley2006-07-121-3/+21
| | | | | | | | | | If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge commit master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa of HEADLinus Torvalds2006-07-1264-186/+272
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * HEAD: [ALSA] Fix undefined (missing) references in ISA MIRO sound driver [ALSA] make sound/isa/gus/gusextreme.c:devices static [ALSA] hda-codec - Fix missing array terminators in AD1988 codec support [ALSA] Fix a deadlock in snd-rtctimer [ALSA] Fix section mismatch errors in ALSA PCI drivers [ALSA] remove unused snd_minor.name field [ALSA] Fix no mpu401 interface can cause hard freeze [ALSA] wavefront: fix __init/__devinit confusion [ALSA] Fix workaround for AD1988A rev2 codec [ALSA] trivial: Code clean up of i2c/cs8427.c [ALSA] sound/i2c/cs8427.c: don't export a static function [ALSA] intel8x0 - Add ac97 quirk for Tyan Thunder K8WE board [ALSA] Reduce the string length of Terratec Aureon 7.1 Universe [ALSA] sound/pci/Kconfig - fix broken indenting for SND_FM801_TEA575X [ALSA] fix the SND_FM801_TEA575X dependencies [ALSA] Memory leak in sound/pcmcia/pdaudiocf/pdaudiocf.c
| * [ALSA] Fix undefined (missing) references in ISA MIRO sound driverRandy Dunlap2006-07-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: /lib/modules/2.6.18-rc1-mm1/kernel/sound/isa/opti9xx/snd-miro.ko needs unknown symbol snd_cs4231_create WARNING: /lib/modules/2.6.18-rc1-mm1/kernel/sound/isa/opti9xx/snd-miro.ko needs unknown symbol snd_cs4231_pcm WARNING: /lib/modules/2.6.18-rc1-mm1/kernel/sound/isa/opti9xx/snd-miro.ko needs unknown symbol snd_cs4231_timer WARNING: /lib/modules/2.6.18-rc1-mm1/kernel/sound/isa/opti9xx/snd-miro.ko needs unknown symbol snd_cs4231_mixer WARNING: /lib/modules/2.6.18-rc1-mm1/kernel/fs/reiser4/reiser4.ko needs unknown symbol generic_file_read Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] make sound/isa/gus/gusextreme.c:devices staticAdrian Bunk2006-07-121-1/+1
| | | | | | | | | | | | | | | | | | 'devices' is not a good name for a global variable. Thankfully, it can become static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] hda-codec - Fix missing array terminators in AD1988 codec supportTakashi Iwai2006-07-121-0/+4
| | | | | | | | | | | | | | Fixed the missing array terminators in AD1988 codec support code. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Fix a deadlock in snd-rtctimerTakashi Iwai2006-07-121-2/+3
| | | | | | | | | | | | | | | | Fix a occasional deadlock occuring with snd-rtctimer driver, added irqsave to the lock in tasklet (ALSA bug#952). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Fix section mismatch errors in ALSA PCI driversTakashi Iwai2006-07-1250-75/+85
| | | | | | | | | | | | | | | | | | Fixed 'section mismatch' errors in ALSA PCI drivers: - removed invalid __devinitdata from pci id tables - fix/remove __devinit of functions called in suspend/resume Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] remove unused snd_minor.name fieldClemens Ladisch2006-07-122-4/+1
| | | | | | | | | | | | | | | | Drop the snd_minor structure's name field that was just a helper for devfs device deregistration. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Fix no mpu401 interface can cause hard freezeRandy Dunlap2006-07-122-20/+50
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the remaining instances in our tree where a non- existent mpu401 interface can cause a hard freeze when i/o is issued. This commit closes Malone #34831. Bug: https://launchpad.net/distros/ubuntu/+source/linux-source-2.6.15/+bug/34831 patch location: http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=b422309cdd980cfefe99379796c04e961d3c1544 From: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] wavefront: fix __init/__devinit confusionClemens Ladisch2006-07-123-26/+26
| | | | | | | | | | | | | | | | The wavefront driver used __init in some places referenced by __devinit functions. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Fix workaround for AD1988A rev2 codecTakashi Iwai2006-07-121-6/+9
| | | | | | | | | | | | | | | | Fix the workaround for AD1988A rev2 codec not to apply to AD1988B codec chips. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] trivial: Code clean up of i2c/cs8427.cTakashi Iwai2006-07-121-42/+73
| | | | | | | | | | | | | | | | - Fix spaces, wrap lines in 80 columns. - Move EXPORT_SYMBOL() adjacent to each function. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] sound/i2c/cs8427.c: don't export a static functionAdrian Bunk2006-07-121-1/+0
| | | | | | | | | | | | | | | | Static functions shouldn't be exported. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] intel8x0 - Add ac97 quirk for Tyan Thunder K8WE boardTakashi Iwai2006-07-121-0/+6
| | | | | | | | | | | | | | Added the default ac97 quirk (hp_only) for Tyan Thunder K8WE board. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Reduce the string length of Terratec Aureon 7.1 UniverseTakashi Iwai2006-07-121-1/+1
| | | | | | | | | | | | | | | | Fix the driver string name for Terratec Aureon 7.1 Universe to fit in 15 letters to avoid the overflow. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] sound/pci/Kconfig - fix broken indenting for SND_FM801_TEA575XJaroslav Kysela2006-07-121-4/+4
| | | | | | | | Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] fix the SND_FM801_TEA575X dependenciesAdrian Bunk2006-07-122-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_SND_FM801=y, CONFIG_SND_FM801_TEA575X=m resulted in the following compile error: <-- snip --> ... LD vmlinux sound/built-in.o: In function 'snd_fm801_free': fm801.c:(.text+0x3c15b): undefined reference to 'snd_tea575x_exit' sound/built-in.o: In function 'snd_card_fm801_probe': fm801.c:(.text+0x3cfde): undefined reference to 'snd_tea575x_init' make: *** [vmlinux] Error 1 <-- snip --> This patch fixes kernel Bugzilla #6458. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Memory leak in sound/pcmcia/pdaudiocf/pdaudiocf.cEric Sesterhenn2006-07-121-1/+3
| | | | | | | | | | | | | | | | | | | | | | if one of the first three CS_CHECKS fails, we goto cs_failed: In this case parse we donr kfree() parse. Since the the last three CS_CHECKS might also fail, i moved the kfree() below all the CS_CHECKs and added one in the error path. This fixes coverity bug id #1099 Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* | [PATCH] ide: fix Jmicron supportAlan Cox2006-07-122-0/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to 2.6.18rc1 you could install with devices on a JMicron chipset using the "all-generic-ide" option. As of this kernel the AHCI driver grabs the controller and rams it into AHCI mode losing the PATA ports and making CD drives and the like vanish. The all-generic-ide option fails because the AHCI driver grabbed the PCI device and reconfigured it. To fix this three things are needed. #1 We must put the chip into dual function mode #2 The AHCI driver must grab only function 0 (already in your rc1 tree) #3 Something must grab the PATA ports The attached patch is the minimal risk edition of this. It puts the chip into dual function mode so that AHCI will grab the SATA ports without losing the PATA ports. To keep the risk as low as possible the third patch adds the PCI identifiers for the PATA port and the FN check to the ide-generic driver. There is a more featured jmicron driver on its way but that adds risk and the ide-generic support is sufficient to install and run a system. The actual chip setup done by the quirk is the precise setup recommended by the vendor. (The JMB368 appears only in the ide-generic entry as it has no AHCI so does not need the quirk) Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Make cpu_relax() imply barrier() on all archesChase Venters2006-07-127-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | During the recent discussion of taking 'volatile' off of the spinlock, I noticed that while most arches #define cpu_relax() such that it implies barrier(), some arches define cpu_relax() to be empty. This patch changes the definition of cpu_relax() for frv, h8300, m68knommu, sh, sh64, v850 and xtensa from an empty while(0) to the compiler barrier(). Signed-off-by: Chase Venters <chase.venters@clientec.com> Acked-by: Arjan van de Ven <arjan@Linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] lockdep: HPET/RTC fixIngo Molnar2006-07-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Joseph Fannin reported that hpet_rtc_interrupt() enables hardirqs in irq context: [ 25.628000] [<c014af4e>] trace_hardirqs_on+0xce/0x200 [ 25.628000] [<c036cf21>] _spin_unlock_irq+0x31/0x70 [ 25.628000] [<c0296584>] rtc_get_rtc_time+0x44/0x1a0 [ 25.628000] [<c01198bb>] hpet_rtc_interrupt+0x21b/0x280 [ 25.628000] [<c0161141>] handle_IRQ_event+0x31/0x70 [ 25.628000] [<c0162d37>] handle_edge_irq+0xe7/0x210 [ 25.628000] [<c0106192>] do_IRQ+0x92/0x120 [ 25.628000] [<c0104121>] common_interrupt+0x25/0x2c the call of rtc_get_rtc_time() is highly suspect. At a minimum we need the patch below to save/restore hardirq state. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Joseph Fannin <jfannin@gmail.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] alloc_fdtable() expansion fixAndrew Morton2006-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | We're supposed to go the next power of two if nfds==nr. Of `nr', not of `nfsd'. Spotted by Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] msi: Only keep one msi_desc in each slab entry.Eric W. Biederman2006-07-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It looks like someone confused kmem_cache_create with a different allocator and was attempting to give it knowledge of how many cache entries there were. With the unfortunate result that each slab entry was big enough to hold every irq. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] /fs/proc/: 'larger than buffer size' memory accessed by clear_user()Adam B. Jerome2006-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | Address a potential 'larger than buffer size' memory access by clear_user(). Without this patch, this call to clear_user() can attempt to clear too many (tsz) bytes resulting in a wrong (-EFAULT) return code by read_kcore(). Signed-off-by: Adam B. Jerome <abj@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] lockdep: annotate the sysfs i_mutex to be a separate classArjan van de Ven2006-07-121-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sysfs has a different i_mutex lock order behavior for i_mutex than the other filesystems; sysfs i_mutex is called in many places with subsystem locks held. At the same time, many of the VFS locking rules do not apply to sysfs at all (cross directory rename for example). To untangle this mess (which gives false positives in lockdep), we're giving sysfs inodes their own class for i_mutex. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fix fdset leakageKirill Korotaev2006-07-121-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When found, it is obvious. nfds calculated when allocating fdsets is rewritten by calculation of size of fdtable, and when we are unlucky, we try to free fdsets of wrong size. Found due to OpenVZ resource management (User Beancounters). Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Fix prctl privilege escalation and suid_dumpable (CVE-2006-2451)Marcel Holtmann2006-07-121-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on a patch from Ernie Petrides During security research, Red Hat discovered a behavioral flaw in core dump handling. A local user could create a program that would cause a core file to be dumped into a directory they would not normally have permissions to write to. This could lead to a denial of service (disk consumption), or allow the local user to gain root privileges. The prctl() system call should never allow to set "dumpable" to the value 2. Especially not for non-privileged users. This can be split into three cases: 1) running as root -- then core dumps will already be done as root, and so prctl(PR_SET_DUMPABLE, 2) is not useful 2) running as non-root w/setuid-to-root -- this is the debatable case 3) running as non-root w/setuid-to-non-root -- then you definitely do NOT want "dumpable" to get set to 2 because you have the privilege escalation vulnerability With case #2, the only potential usefulness is for a program that has designed to run with higher privilege (than the user invoking it) that wants to be able to create root-owned root-validated core dumps. This might be useful as a debugging aid, but would only be safe if the program had done a chdir() to a safe directory. There is no benefit to a production setuid-to-root utility, because it shouldn't be dumping core in the first place. If this is true, then the same debugging aid could also be accomplished with the "suid_dumpable" sysctl. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2006-07-1256-283/+453
|\ | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] Fix sparse warnings. [S390] path grouping and path verifications fixes. [S390] xpram module parameter parsing. [S390] cpu_relax() is supposed to have barrier() semantics. [S390] fix futex_atomic_cmpxchg_inatomic [S390] subchannel register/unregister mutex. [S390] raw_local_save_flags/raw_local_irq_restore type check [S390] __builtin_trap() and gcc version.
| * [S390] Fix sparse warnings.Heiko Carstens2006-07-1240-152/+156
| | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] path grouping and path verifications fixes.Cornelia Huck2006-07-1210-48/+228
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Multipath devices for which SetPGID is not supported are not handled well. Use NOP ccws for path verification (sans path grouping) when SetPGID is not supported. 2. Check for PGIDs already set with SensePGID on _all_ paths (not just the first one) and try to find a common one. Moan if no common PGID can be found (and use NOP verification). If no PGIDs have been set, use the css global PGID (as before). (Rationale: SetPGID will get a command reject if the PGID it tries to set does not match the already set PGID.) 3. Immediately before reboot, issue RESET CHANNEL PATH (rcp) on all chpids. This will remove the old PGIDs. rcp will generate solicited CRWs which can be savely ignored by the machine check handler (all other actions create unsolicited CRWs). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] xpram module parameter parsing.Heiko Carstens2006-07-121-57/+6
| | | | | | | | | | | | | | | | | | | | | | | | The module parameters for xpram are not or in a wrong way parsed. The xpram module uses the module_param_array directive with an int parameter which causes the kernel to automatically parse the passed numbers. This will cause errors if arguments are omitted or cause wrong results if arguments have size qualifiers. Use module_param_array with charp and parse the arguments later. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] cpu_relax() is supposed to have barrier() semantics.Heiko Carstens2006-07-122-10/+9
| | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] fix futex_atomic_cmpxchg_inatomicMartin Schwidefsky2006-07-121-2/+3
| | | | | | | | | | | | | | | | | | futex_atomic_cmpxchg_inatomic has the same bug as the other atomic futex operations: the operation needs to be done in the user address space, not the kernel address space. Add the missing sacf 256 & sacf 0. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] subchannel register/unregister mutex.Cornelia Huck2006-07-125-7/+29
| | | | | | | | | | | | | | | | | | | | | | Add a reg_mutex to prevent unregistering a subchannel before it has been registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is found to be not operational during sense id when doing initial device recognition; it is not clear yet why that particular problem was not (yet) observed with earlier kernels... Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] raw_local_save_flags/raw_local_irq_restore type checkHeiko Carstens2006-07-121-6/+12
| | | | | | | | | | | | | | | | | | Make sure that raw_local_save_flags and raw_local_irq_restore always get an unsigned long parameter. raw_irqs_disabled should call raw_local_save_flags instead of local_save_flags. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * [S390] __builtin_trap() and gcc version.Heiko Carstens2006-07-121-1/+10
| | | | | | | | | | | | | | | | | | __builtin_trap() has the archictecture defined backend in gcc since gcc 3.3. To make sure the kernel builds with gcc 3.2 as well, use the old style BUG() statement if compiled with older gcc versions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | Add PIIX4 APCI quirk for the 440MX chipset tooLinus Torvalds2006-07-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is confirmed to fix a hang due to PCI resource conflicts with setting up the Cardbus bridge on old laptops with the 440MX chipsets. Original report by Alessio Sangalli, lspci debugging help by Pekka Enberg, and trial patch suggested by Daniel Ritz: "From the docs available i would _guess_ this thing is really similar to the 82443BX/82371AB combination. at least the SMBus base address register is hidden at the very same place (32bit at 0x90 in function 3 of the "south" brigde)" The dang thing is largely undocumented, but the patch was corroborated by Asit Mallick: "I am trying to find the register information. 440MX is an integration of 440BX north-bridge without AGP and PIIX4E (82371EB). PIIX4 quirk should cover the ACPI and SMBus related I/O registers." and verified to fix the problem by Alessio. Cc: Daniel Ritz <daniel.ritz-ml@swissonline.ch> Cc: Asit Mallick <asit.k.mallick@intel.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Dmitry Torokhov <dtor_core@ameritech.net> Tested-by: Alessio Sangalli <alesan@manoweb.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2006-07-121-105/+133
|\ \ | |/ |/| | | | | * 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: fix problems with sys_tee()
| * [PATCH] splice: fix problems with sys_tee()Jens Axboe2006-07-101-105/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Several issues noticed/fixed: - We cannot reliably block in link_pipe() while holding both input and output mutexes. So do preparatory checks before locking down both mutexes and doing the link. - The ipipe->nrbufs vs i check was bad, because we could have dropped the ipipe lock in-between. This causes us to potentially look at unknown buffers if we were racing with someone else reading this pipe. Signed-off-by: Jens Axboe <axboe@suse.de>
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