- 17 10月, 2006 14 次提交
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由 Stephen Hemminger 提交于
Make net_random() more widely available by calling it random32 akpm: hopefully this will permit the removal of carta_random32. That needs confirmation from Stephane - this code looks somewhat more computationally expensive, and has a different (ie: callee-stateful) interface. [akpm@osdl.org: lots of build fixes, cleanups] Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net> Cc: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
Actually, the decimal representation of a 32-bit signed number can take 12 bytes, including the \0. And then some code adds a \n as well, so let's give it 13 bytes. Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Thomas Gleixner 提交于
The integer divisions in the timer accounting code can round the result down to 0. Adding 0 is without effect and the signal delivery stops. Clamp the division result to minimum 1 to avoid this. Problem was reported by Seongbae Park <spark@google.com>, who provided also an inital patch. Roland sayeth: I have had some more time to think about the problem, and to reproduce it using Toyo's test case. For the record, if my understanding of the problem is correct, this happens only in one very particular case. First, the expiry time has to be so soon that in cputime_t units (usually 1s/HZ ticks) it's < nthreads so the division yields zero. Second, it only affects each thread that is so new that its CPU time accumulation is zero so now+0 is still zero and ->it_*_expires winds up staying zero. For the VIRT and PROF clocks when cputime_t is tick granularity (or the SCHED clock on configurations where sched_clock's value only advances on clock ticks), this is not hard to arrange with new threads starting up and blocking before they accumulate a whole tick of CPU time. That's what happens in Toyo's test case. Note that in general it is fine for that division to round down to zero, and set each thread's expiry time to its "now" time. The problem only arises with thread's whose "now" value is still zero, so that now+0 winds up 0 and is interpreted as "not set" instead of ">= now". So it would be a sufficient and more precise fix to just use max(ticks, 1) inside the loop when setting each it_*_expires value. But, it does no harm to round the division up to one and always advance every thread's expiry time. If the thread didn't already fire timers for the expiry time of "now", there is no expectation that it will do so before the next tick anyway. So I followed Thomas's patch in lifting the max out of the loops. This patch also covers the reload cases, which are harder to write a test for (and I didn't try). I've tested it with Toyo's case and it fixes that. [toyoa@mvista.com: fix: min_t -> max_t] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NRoland McGrath <roland@redhat.com> Cc: Daniel Walker <dwalker@mvista.com> Cc: Toyo Abe <toyoa@mvista.com> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Seongbae Park <spark@google.com> Cc: Peter Mattis <pmattis@google.com> Cc: Rohit Seth <rohitseth@google.com> Cc: Martin Bligh <mbligh@google.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Akinobu Mita 提交于
I have seen mdadm oops after successfully unloading md module. This patch privents from unloading md module while mdadm is polling /proc/mdstat. Cc: Neil Brown <neilb@suse.de> Signed-off-by: NAkinbou Mita <akinobu.mita@gmail.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
If remove_mapping() failed to remove the page from its mapping, don't go and mark it not uptodate! Makes kernel go dead. (Actually, I don't think the ClearPageUptodate is needed there at all). Says Nick Piggin: "Right, it isn't needed because at this point the page is guaranteed by remove_mapping to have no references (except us) and cannot pick up any new ones because it is removed from pagecache. We can delete it." Signed-off-by: NAndrew Morton <akpm@osdl.org> Acked-by: NNick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Dave Kleikamp 提交于
This is Eric Sesterhenn's jbd patch applied to jbd2. Commit: 41716c7c His words: Since commit d1807793 we dereference a NULL pointer. Coverity id #1432. We set journal to NULL, and use it directly afterwards. Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com> Cc: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 john stultz 提交于
Avoid possible PIT livelock issues seen on SMP systems (and reported by Andi), by not allowing it as a clocksource on SMP boxes. However, since the PIT may no longer be present, we have to properly handle the cases where SMP systems have TSC skew and fall back from the TSC. Since the PIT isn't there, it would "fall back" to the TSC again. So this changes the jiffies rating to 1, and the TSC-bad rating value to 0. Thus you will get the following behavior priority on i386 systems: tsc [if present & stable] hpet [if present] cyclone [if present] acpi_pm [if present] pit [if UP] jiffies Rather then the current more complicated: tsc [if present & stable] hpet [if present] cyclone [if present] acpi_pm [if present] pit [if cpus < 4] tsc [if present & unstable] jiffies Signed-off-by: NJohn Stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Pierre Ossman 提交于
I will be taking over after Russell King as the new maintainer of the MMC layer. Signed-off-by: NPierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Ingo Molnar 提交于
In general, lockdep warnings are intended to be non-fatal, so I have put in various practical limits on internal data structure failure modes. We haven't had a /single/ lockdep-internal crash ever since lockdep went upstream [the unwinder crashes are outside of lockdep], and that's largely due to the good internal checks it does. Recursion within the dependency graph is currently limited to 20, that's probably not enough on some many-CPU boxes - this patch doubles it to 40. I have written the lockdep functions to have as small stackframes as possible, so 40 should be OK too. (The practical recursion limit should be somewhere between 100 and 200 entries. If we hit that then I'll change the algorithm to be iteration-based. Graph walking logic is so easy to program via recursion, so i'd like to keep recursion as long as possible.) Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paul Fulghum 提交于
Remove reference to PAGE_SIZE that causes errors if PAGE_SIZE != 4096 Signed-off-by: NPaul Fulghum <paulkf@microgate.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Brent Casavant 提交于
The SGI PCI-RT card, based on the SGI IOC4 chip, will be made available on Altix XE (x86_64) platforms in the near future. As such it is now a misnomer for the IOC4 base device driver to live under drivers/sn, and would complicate builds for non-SN2. This patch moves the IOC4 base driver code from drivers/sn to drivers/misc, and updates the associated Makefiles and Kconfig files to allow building on non-SN2 configs. Due to the resulting change in link order, it is now necessary to use late_initcall() for IOC4 subdriver initialization. [akpm@osdl.org: __udivdi3 fix] [akpm@osdl.org: fix default in Kconfig] Acked-by: NPat Gefre <pfg@sgi.com> Acked-by: NJeremy Higdon <jeremy@sgi.com> Signed-off-by: NBrent Casavant <bcasavan@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Brent Casavant 提交于
The SGI PCI-RT card, based on the SGI IOC4 chip, will be made available on Altix XE (x86_64) platforms in the near future. As such dependencies on SN2-specific features and config dependencies need to be removed. This patch updates the Kconfig files to remove the config dependency, and updates the IOC4 bus speed detection routine to use universally available time interfaces instead of mmtimer. Signed-off-by: NBrent Casavant <bcasavan@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Geert Uytterhoeven 提交于
The telecom clock driver for MPBL0010 ATCA SBC depends on X86 Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NMark Gross <mark.gross@intel.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Randy Dunlap 提交于
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7371 sys_epoll_pwait needs to be listed as a conditional (weak) entry point for CONFIG_EPOLL=n. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 16 10月, 2006 26 次提交
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits) [Bluetooth] Use work queue to trigger URB submission [Bluetooth] Add locking for bt_proto array manipulation [Bluetooth] Check if DLC is still attached to the TTY [Bluetooth] Fix reference count when connection lookup fails [Bluetooth] Disconnect HID interrupt channel first [Bluetooth] Support concurrent connect requests [Bluetooth] Make use of virtual devices tree [Bluetooth] Handle return values from driver core functions [Bluetooth] Fix compat ioctl for BNEP, CMTP and HIDP [IPV6] sit: Add missing MODULE_LICENSE [IPV6]: Remove bogus WARN_ON in Proxy-NA handling. [IPv6] rules: Use RT6_LOOKUP_F_HAS_SADDR and fix source based selectors [XFRM]: Fix xfrm_state_num going negative. [NET]: reduce sizeof(struct inet_peer), cleanup, change in peer_check_expire() NetLabel: the CIPSOv4 passthrough mapping does not pass categories correctly NetLabel: better error handling involving mls_export_cat() NetLabel: only deref the CIPSOv4 standard map fields when using standard mapping [BRIDGE]: flush forwarding table when device carrier off [NETFILTER]: ctnetlink: Remove debugging messages [NETFILTER]: Update MAINTAINERS entry ...
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由 David Howells 提交于
Use inc/dec_preempt_count() rather than preempt_enable/disable() and manually add in the compiler barriers that were provided by the latter. This makes FRV consistent with other archs. Furthermore, the compiler barrier effects are now there unconditionally - at least as far as preemption is concerned - because we don't want the compiler moving memory accesses out of the section of code in which the mapping is in force - in effect the kmap_atomic() must imply a LOCK-class barrier and the kunmap_atomic() must imply an UNLOCK-class barrier to the compiler. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrey Mirkin 提交于
It is known that 2 LSI Logic MegaRAID SATA RAID Controllers (150-4 and 150-6) don't support 64-bit DMA. Unfortunately currently this check is wrong and driver sets 64-bit DMA mode for these devices. Signed-off-by: NAndrey Mirkin <amirkin@sw.ru> Acked-by: NVasily Averin <vvs@sw.ru> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alan Cox 提交于
Without this the user can feed in bogus values and get very bogus results. Security impact is minimal as this ioctl isn't available to unpriviledged processes anyway. Reported to the l/k list and found with an auditing tool. Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alan Cox 提交于
Found by an analysis tool and reported to the list. Fix is simple enough Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Marcel Holtmann 提交于
The bcm203x firmware loading driver uses a timer to trigger the URB submission. It is better to use a work queue instead. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
The bt_proto array needs to be protected by some kind of locking to prevent a race condition between bt_sock_create and bt_sock_register. And in addition all calls to sk_alloc need to be made GFP_ATOMIC now. Signed-off-by: NMasatake YAMATO <jet@gyve.org> Signed-off-by: NFrederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
If the DLC device is no longer attached to the TTY device, then it makes no sense to go through with changing the termios settings. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
When the connection lookup for the device structure fails, the reference count for the HCI device needs to be decremented. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
The Bluetooth HID specification demands that the interrupt channel shall be disconnected first. This is needed to pass the qualification tests. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
Most Bluetooth chips don't support concurrent connect requests, because this would involve a multiple baseband page with only one radio. In the case an upper layer like L2CAP requests a concurrent connect these chips return the error "Command Disallowed" for the second request. If this happens it the responsibility of the Bluetooth core to queue the request and try again after the previous connect attempt has been completed. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
The Bluetooth subsystem currently uses a platform device for devices with no parent. It is a better idea to use the new virtual devices tree for these. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
Some return values of the driver core register and create functions are not handled and so might cause unexpected problems. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
There exists no attempt do deal with the fact that a structure with a uint32_t followed by a pointer is going to be different for 32-bit and 64-bit userspace. Any 32-bit process trying to use it will be failing with -EFAULT if it's lucky; suffering from having data dumped at a random address if it's not. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Jan Dittmer 提交于
This is missing the MODULE_LICENSE statements and taints the kernel upon loading. License is obvious from the beginning of the file. Signed-off-by: NJan Dittmer <jdi@l4x.org> Signed-off-by: NJoerg Roedel <joro-lkml@zlug.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Thomas Graf 提交于
Fixes rt6_lookup() to provide the source address in the flow and sets RT6_LOOKUP_F_HAS_SADDR whenever it is present in the flow. Avoids unnecessary prefix comparisons by checking for a prefix length first. Fixes the rule logic to not match packets if a source selector has been specified but no source address is available. Thanks to Kim Nordlund <kim.nordlund@nokia.com> for working on this patch with me. Signed-off-by: NThomas Graf <tgraf@suug.ch> Acked-by: NVille Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Missing counter bump when hashing in a new ACQ xfrm_state. Now that we have two spots to do the hash grow check, break it out into a helper function. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
1) shrink struct inet_peer on 64 bits platforms.
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由 Paul Moore 提交于
The CIPSO passthrough mapping had a problem when sending categories which would cause no or incorrect categories to be sent on the wire with a packet. This patch fixes the problem which was a simple off-by-one bug. Signed-off-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Paul Moore 提交于
Upon inspection it looked like the error handling for mls_export_cat() was rather poor. This patch addresses this by NULL'ing out kfree()'d pointers before returning and checking the return value of the function everywhere it is called. Signed-off-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Paul Moore 提交于
Fix several places in the CIPSO code where it was dereferencing fields which did not have valid pointers by moving those pointer dereferences into code blocks where the pointers are valid. Signed-off-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Stephen Hemminger 提交于
Flush the forwarding table when carrier is lost. This helps for availability because we don't want to forward to a downed device and new packets may come in on other links. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Pablo Neira Ayuso 提交于
Remove (compilation-breaking) debugging messages introduced at early development stage. Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
Patches should go to myself CC netfilter-devel. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
CONNSECMARK needs conntrack, add missing dependency to fix linking error with CONNSECMARK=y and CONNTRACK=m. Reported by Toralf Förster <toralf.foerster@gmx.de>. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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