- 20 Sep, 2006 5 commits
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Martin Schwidefsky authored
Add a bus for the adjunct processor interface. Up to 64 devices can be connect to the ap bus interface, each device with 16 domains. That makes 1024 message queues. The interface is asynchronous, the answer to a message sent to a queue needs to be received at some later point in time. Unfortunately the interface does not provide interrupts when a message reply is pending. So the ap bus needs to implement some fancy polling, each active queue is polled once per 1/HZ second or continuously if an idle cpus exsists and the poll thread is activ (see poll_thread parameter). The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes, ap_domain and config_time. The ap_domain selects one of the 16 domains to be used for this system. This limits the maximum number of ap devices to 64. The config_time attribute contains the number of seconds between two ap bus scans to find new devices. The ap bus uses the modalias entries of the form "ap:tN" to autoload the ap driver for hardware type N. Currently known types are: 3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C. Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
The z90crypt driver has served its term. It is replaced by the shiny new zcrypt device driver. Signed-off-by: -
Martin Schwidefsky authored
Add EX_TABLE helper macro to simplify creation of inline assembly exception table entries. Signed-off-by: -
Linus Torvalds authored
Ahoy, all land-lubbers, test me out right smartly! Signed-off-by:Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV4] fib_trie: missing ntohl() when calling fib_semantic_match() [NETFILTER]: xt_quota: add missing module aliases [ATM]: [he] don't hold the device lock when upcalling
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- 19 Sep, 2006 14 commits
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Al Viro authored
fib_trie.c::check_leaf() passes host-endian where fib_semantic_match() expects (and stores into) net-endian. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
Add missing aliases for ipt_quota and ip6t_quota to make autoload work. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Chas Williams authored
This can create a deadlock/lock ordering problem with other layers that want to use the transmit (or other) path of the card at that time. Signed-off-by:
Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by:
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git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds authored
* 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6: NFS: Fix nfs_page use after free issues in fs/nfs/write.c NFSv4: Fix incorrect semaphore release in _nfs4_do_open() NFS: Fix Oopsable condition in nfs_readpage_sync()
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Trond Myklebust authored
Signed-off-by:Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust authored
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Trond Myklebust authored
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Linus Torvalds authored
This reverts commits 11012d41 and 40dd2d20, which allowed us to use the MMIO accesses for PCI config cycles even without the area being marked reserved in the e820 memory tables. Those changes were needed for EFI-environment Intel macs, but broke some newer Intel 965 boards, so for now it's better to revert to our old 2.6.17 behaviour and at least avoid introducing any new breakage. Andi Kleen has a set of patches that work with both EFI and the broken Intel 965 boards, which will be applied once they get wider testing. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Edgar Hucek <hostmaster@ed-soft.at> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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git://git.infradead.org/mtd-2.6Linus Torvalds authored
* git://git.infradead.org/mtd-2.6: [MTD] Use SEEK_{SET,CUR,END} instead of hardcoded values in mtdchar lseek() MTD: Fix bug in fixup_convert_atmel_pri [JFFS2][SUMMARY] Fix a summary collecting bug. [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80 MTD: Add lock/unlock operations for Atmel AT49BV6416 MTD: Convert Atmel PRI information to AMD format fs/jffs2/xattr.c: remove dead code [PATCH] [MTD] Maps: Add dependency on alternate probe methods to physmap [PATCH] MTD: Add Macronix MX29F040 to JEDEC [MTD] Fixes of performance and stability issues in CFI driver. block2mtd.c: Make kernel boot command line arguments work (try 4) [MTD NAND] Fix lookup error in nand_get_flash_type() remove #error on !PCI from pmc551.c MTD: [NAND] Fix the sharpsl driver after breakage from a core conversion [MTD] NAND: OOB buffer offset fixups make fs/jffs2/nodelist.c:jffs2_obsolete_node_frag() static [PATCH] [MTD] NAND: fix dead URL in Kconfig
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Dave Kleikamp authored
Fix a performance degradation introduced in 2.6.17. (30% degradation running dbench with 16 threads) Commit 21730eed, which claims to make EXT2_DEBUG work again, moves the taking of the kernel lock out of debug-only code in ext2_count_free_inodes and ext2_count_free_blocks and into ext2_statfs. The same problem was fixed in ext3 by removing the lock completely (commit 5b116879) Signed-off-by:
Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Matthew Wilcox authored
Remove definitions of PAGE_* from the user view Delete unnecessary comments referring to the size of pages Only include <asm-generic> if we're in __KERNEL__ Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
Matthew Wilcox <matthew@wil.cx> Signed-off-by:
Kyle McMartin <kyle@parisc-linux.org> Signed-off-by:
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Geert Uytterhoeven authored
Fix 'make headers_check' on m68k Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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David Woodhouse authored
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Ingo Molnar authored
while porting the -rt tree to 2.6.18-rc7 i noticed the following screaming-IRQ scenario on an SMP system: 2274 0Dn.:1 0.001ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.010ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.020ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.029ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.039ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.048ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.058ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.068ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.077ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.087ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.097ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) as it turns out, the bug is caused by handle_level_irq(), which if it races with another CPU already handling this IRQ, it _unmasks_ the IRQ line on the way out. This is not how 2.6.17 works, and we introduced this bug in one of the early genirq cleanups right before it went into -mm. (the bug was not in the genirq patchset for a long time, and we didnt notice the bug due to the lack of -rt rebase to the new genirq code. -rt, and hardirq-preemption in particular opens up such races much wider than anything else.) Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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- 18 Sep, 2006 21 commits
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Linus Torvalds authored
(And reset it on new thread creation) It turns out that eflags is important to save and restore not just because of iopl, but due to the magic bits like the NT bit, which we don't want leaking between different threads. Tested-by:
Mike Galbraith <efault@gmx.de> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [ATM] CLIP: Do not refer freed skbuff in clip_mkip(). [NET]: Drop tx lock in dev_watchdog_up [PACKET]: Don't truncate non-linear skbs with mmaped IO [NET]: Mark frame diverter for future removal. [NETFILTER]: Add secmark headers to header-y [ATM]: linux-atm-general mailing list is subscribers only [ATM]: [he] when transmit fails, unmap the dma regions [TCP] tcp-lp: update information to MAINTAINERS [TCP] tcp-lp: bug fix for oops in 2.6.18-rc6 [BRIDGE]: random extra bytes on STP TCN packet [IPV6]: Accept -1 for IPV6_TCLASS [IPV6]: Fix tclass setting for raw sockets. [IPVS]: remove the debug option go ip_vs_ftp [IPVS]: Make sure ip_vs_ftp ports are valid [IPVS]: auto-help for ip_vs_ftp [IPVS]: Document the ports option to ip_vs_ftp in kernel-parameters.txt [TCP]: Turn ABC off. [NEIGH]: neigh_table_clear() doesn't free stats
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: Fix regression in sys_getdomainname() [OPENPROMIO]: Handle current_node being NULL correctly.
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3815/1: headers_install support for ARM [ARM] 3794/1: S3C24XX: do not defined set_irq_wake when no CONFIG_PM [ARM] 3793/1: S3C2412: fix wrong serial info struct [ARM] 3780/1: Fix iop321 cpuid [ARM] 3786/1: pnx4008: update defconfig [ARM] 3785/1: S3C2412: Fix idle code as default uses wrong clocks [ARM] 3784/1: S3C2413: fix config for MACH_S3C2413/MACH_SMDK2413
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Ralph Siemsen authored
Move kernel-only #includes into #ifdef __KERNEL__, so that headers_install target can be used on ARM. Signed-off-by:
Ralph Siemsen <ralphs@netwinder.org> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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Andy Walker authored
This patch corrects the buffer length checking in the sys_getdomainname() implementation for sparc/sparc64. Signed-off-by:
Andy Walker <andy@puszczka.com> Signed-off-by:
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YOSHIFUJI Hideaki authored
In clip_mkip(), skb->dev is dereferenced after clip_push(), which frees up skb. Advisory: AD_LAB-06009 (<adlab@venustech.com.cn>). Signed-off-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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Ben Dooks authored
Patch from Ben Dooks Do not define set_irq_wake as a real function if the CONFIG_PM option is not set. Fixes bug reported by Thomas Gleixner. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Ben Dooks authored
Patch from Ben Dooks The S3C2440 serial info struct is being passed through the S3C2412 serial info struct probe routine. Signed-off-by:
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David S. Miller authored
If the user tries to traverse to the next node of the last node, we get NULL in current_node and a zero phandle returned. That's fine, but if the user tries to obtain properties in that state, we try to dereference a NULL pointer in the downcall to the of_*() routines. So protect against that. Signed-off-by: -
Herbert Xu authored
Fix lockdep warning with GRE, iptables and Speedtouch ADSL, PPP over ATM. On Sat, Sep 02, 2006 at 08:39:28PM +0000, Krzysztof Halasa wrote: > > ======================================================= > [ INFO: possible circular locking dependency detected ] > ------------------------------------------------------- > swapper/0 is trying to acquire lock: > (&dev->queue_lock){-+..}, at: [<c02c8c46>] dev_queue_xmit+0x56/0x290 > > but task is already holding lock: > (&dev->_xmit_lock){-+..}, at: [<c02c8e14>] dev_queue_xmit+0x224/0x290 > > which lock already depends on the new lock. This turns out to be a genuine bug. The queue lock and xmit lock are intentionally taken out of order. Two things are supposed to prevent dead-locks from occuring: 1) When we hold the queue_lock we're supposed to only do try_lock on the tx_lock. 2) We always drop the queue_lock after taking the tx_lock and before doing anything else. > > the existing dependency chain (in reverse order) is: > > -> #1 (&dev->_xmit_lock){-+..}: > [<c012e7b6>] lock_acquire+0x76/0xa0 > [<c0336241>] _spin_lock_bh+0x31/0x40 > [<c02d25a9>] dev_activate+0x69/0x120 This path obviously breaks assumption 1) and therefore can lead to ABBA dead-locks. I've looked at the history and there seems to be no reason for the lock to be held at all in dev_watchdog_up. The lock appeared in day one and even there it was unnecessary. In fact, people added __dev_watchdog_up precisely in order to get around the tx lock there. The function dev_watchdog_up is already serialised by rtnl_lock since its only caller dev_activate is always called under it. So here is a simple patch to remove the tx lock from dev_watchdog_up. In 2.6.19 we can eliminate the unnecessary __dev_watchdog_up and replace it with dev_watchdog_up. Signed-off-by:Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Patrick McHardy authored
Non-linear skbs are truncated to their linear part with mmaped IO. Fix by using skb_copy_bits instead of memcpy. Signed-off-by:
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by:
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Stephen Hemminger authored
The code for frame diverter is unmaintained and has bitrotted. The number of users is very small and the code has lots of problems. If anyone is using it, they maybe exposing themselves to bad packet attacks. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
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James Morris authored
This patch includes xt_SECMARK.h and xt_CONNSECMARK.h to the kernel headers which are exported via 'make headers_install'. This is needed to allow userland code to be built correctly with these features. Please apply, and consider for inclusion with 2.6.18 as a bugfix. Signed-off-by:
James Morris <jmorris@redhat.com> Signed-off-by:
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Roland Dreier authored
As the automated reply I got to my last ATM patch shows, the linux-atm-general mailing list is subscribers-only. Signed-off-by:
Roland Dreier <roland@digitalvampire.org> Signed-off-by:
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Chas Williams authored
Signed-off-by:
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Wong Hoi Sing Edison authored
Signed-off-by:
Wong Hoi Sing Edison <hswong3i@gmail.com> Signed-off-by:
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Wong Hoi Sing Edison authored
Sorry that the patch submited yesterday still contain a small bug. This version have already been test for hours with BT connections. The oops is now difficult to reproduce. Signed-off-by:
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Stephen Hemminger authored
We seem to send 3 extra bytes in a TCN, which will be whatever happens to be on the stack. Thanks to Aji_Srinivas@emc.com for seeing. Signed-off-by:
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Remi Denis-Courmont authored
This patch should add support for -1 as "default" IPv6 traffic class, as specified in IETF RFC3542 §6.5. Within the kernel, it seems tclass < 0 is already handled, but setsockopt, getsockopt and recvmsg calls won't accept it from userland. Signed-off-by:
Remi Denis-Courmont <rdenis@simphalempin.com> Acked-by:
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YOSHIFUJI Hideaki authored
np->cork.tclass is used only in cork'ed context. Otherwise, np->tclass should be used. Bug#7096 reported by Remi Denis-Courmont <rdenis@simphalempin.com>. Signed-off-by:
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