- Dec 30, 2006
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Stefan Richter authored
Need to use a PCI device, not a FireWire host device. Problem found by Andreas Schwab, mistake pointed out by Benjamin Herrenschmidt. http://ozlabs.org/pipermail/linuxppc-dev/2006-December/029595.html Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by:
Andreas Schwab <schwab@suse.de>
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Stefan Richter authored
Delete some incorrect code, left over from the initial driver submission in March 2001. SBP-2 targets should provide sense data via the SBP-2 status block (autosense). We have to pass the REQUEST_SENSE command through to targets which don't implement autosense, if there are any, and to accomodate application clients which use this command. Signed-off-by:
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- Dec 14, 2006
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Linus Torvalds authored
.. and so the stabilization phase starts. Signed-off-by:Linus Torvalds <torvalds@osdl.org>
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Patrick McHardy authored
Remove the deferred hooks and all related code as scheduled in feature-removal-schedule. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Kim Nordlund authored
Make fib6_node 'subtree' depend on IPV6_SUBTREES. Signed-off-by:
Kim Nordlund <kim.nordlund@nokia.com> Signed-off-by:
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Ivan Skytte Jorgensen authored
Signed-off-by:
Ivan Skytte Jorgensen <isj-sctp@i1.dk> Signed-off-by:
Sridhar Samudrala <sri@us.ibm.com> Signed-off-by:
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Sridhar Samudrala authored
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Sridhar Samudrala authored
Currently in SCTP, we maintain a local address list by rebuilding the whole list from the device list whenever we get a address add/delete event. This patch fixes it by only adding/deleting the address for which we receive the event. Also removed the sctp_local_addr_lock() which is no longer needed as we now use list_for_each_safe() to traverse this list. This fixes the bugs in sctp_copy_laddrs_xxx() routines where we do copy_to_user() while holding this lock. Signed-off-by:
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David S. Miller authored
It should call tcp_free_md5sig_pool() not __tcp_free_md5sig_pool() so that it does proper refcounting. Signed-off-by: -
Brian Haley authored
> Relevant standard (RFC 3493) notes: > > The IPV6_UNICAST_HOPS option may be used with getsockopt() to > determine the hop limit value that the system will use for subsequent > unicast packets sent via that socket. > > I don't reckon -1 could be the hop limit value. -1 means un-initialized. > IMHO, the value from > case 1 (if socket is connected to some destination), otherwise case 2 > (if bound to a scope interface) or ultimately the default hop limit > ought to be returned instead, as it will be most often correct, while > the current behavior is always wrong, unless setsockopt() has been used > first. I don't if some people may think doing a route lookup in > getsockopt might be overly expensive, but at least the two other cases > should be ok, particularly the last one. The following patch seems to work for me, but this code has behaved this way for a while, so don't know if it will break any existing apps. Signed-off-by:
Brian Haley <brian.haley@hp.com> Signed-off-by:
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Ian McDonald authored
In a recent patch we introduced invalid return codes which will result in the opposite of what is intended (i.e. send more packets in face of peculiar network conditions). This fixes it by returning ~0 which means not calculated as per dccp_li_hist_calc_i_mean. Signed-off-by:
Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by:
Arnaldo Carvalho de Melo <acme@mandriva.com>
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Al Viro authored
If we come to node we'd already marked as seen and it's not a part of path (i.e. we don't have a loop right there), we already know that it isn't a part of any loop, so we don't need to revisit it. That speeds the things up if some chain is refered to from several places and kills O(exp(table size)) worst-case behaviour (without sleeping, at that, so if you manage to self-LART that way, you are SOL for a long time)... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Dmitry Mishin authored
Matches and targets verification is duplicated in normal and compat processing ways. This patch refactors code in order to remove this. Signed-off-by:
Dmitry Mishin <dim@openvz.org> Signed-off-by:
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Yasuyuki Kozakai authored
CLUSTERIP, CONNMARK, CONNSECMARK, and connbytes need ip_conntrack or layer 3 protocol module of nf_conntrack. Signed-off-by:
Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by:
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Yasuyuki Kozakai authored
To do that, this makes nf_ct_l3proto_try_module_{get,put} compatible functions. As a result we can remove '#ifdef' surrounds and direct call of need_conntrack(). Signed-off-by: -
Yasuyuki Kozakai authored
NF_NAT depends on NF_CONNTRACK_IPV4, not NF_CONNTRACK. Signed-off-by:
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Patrick McHardy authored
Building with INET=n results in WARNING: "ip_route_output_key" [net/netfilter/nf_conntrack_h323.ko] undefined! The entire code in net/netfilter is only used for IPv4/IPv6 currently, so let it depend on INET. Noticed by Toralf Förster <toralf.foerster@gmx.de>. Signed-off-by:
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Linus Torvalds authored
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4017/1: [Jornada7xx] - Updating Jornada720.c [ARM] 3992/1: i.MX/MX1 CPU Frequency scaling support [ARM] Provide a method to alter the control register [ARM] 4016/1: prefetch macro is wrong wrt gcc's "delete-null-pointer-checks" [ARM] Remove empty fixup function [ARM] 4014/1: include drivers/hid/Kconfig [ARM] 4013/1: clocksource driver for netx [ARM] 4012/1: Clocksource for pxa [ARM] Clean up ioremap code [ARM] Unuse another Linux PTE bit [ARM] Clean up KERNEL_RAM_ADDR [ARM] Add sys_*at syscalls [ARM] 4004/1: S3C24XX: UDC remove implict addition of VA to regs [ARM] Formalise the ARMv6 processor name string [ARM] Handle HWCAP_VFP in VFP support code [ARM] 4011/1: AT91SAM9260: Fix compilation with NAND driver [ARM] 4010/1: AT91SAM9260-EK board: Prepare for MACB Ethernet support
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Linus Torvalds authored
* 'release' of master.kernel.org:/home/ftp/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Move sg_dma_{len,address} from pci.h to scatterlist.h -
David Brownell authored
Deprecate the old "legacy" PM API, and more importantly default it to "n". Virtually nothing in-tree uses it any more. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Scott Wood authored
platform_device_add_data() makes a copy of the data that is given to it, and thus the parameter can be const. This removes a warning when data from get_property() on powerpc is handed to platform_device_add_data(), as get_property() returns a const pointer. Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Andrew Morton authored
This function can be __init Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
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Mathieu Desnoyers authored
Fix file and directory removal in debugfs. Add inotify support for file removal. The following scenario : create dir a create dir a/b cd a/b (some process goes in cwd a/b) rmdir a/b rmdir a fails due to the fact that "a" appears to be non empty. It is because the "b" dentry is not deleted from "a" and still in use. The same problem happens if "b" is a file. d_delete is nice enough to know when it needs to unhash and free the dentry if nothing else is using it or, if someone is using it, to remove it from the hash queues and wait for it to be deleted when it has no users. The nice side-effect of this fix is that it calls the file removal notification. Signed-off-by:
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by:
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Mathieu Desnoyers authored
Correct dentry count to handle creation errors. This patch puts a dput at the file creation instead of the file removal : lookup_one_len already returns a dentry with reference count of 1. Then, the dget() in simple_mknod increments it when the dentry is associated with a file. In a scenario where simple_create or simple_mkdir returns an error, this would lead to an unwanted increment of the reference counter, therefore making file removal impossible. Signed-off-by:
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Mathieu Desnoyers authored
Fix error handling of file and directory creation in DebugFS. The error path should release the file system because no _remove will be called for this erroneous creation. Signed-off-by:
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Mathieu Desnoyers authored
Minor coding style fixes along the way : 80 cols and a white space. Signed-off-by:
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Mathieu Desnoyers authored
Add inotify create and mkdir events to DebugFS. Signed-off-by:
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Akinobu Mita authored
Class virtual directory is created as the need arises. But it is not deleted when the class is unregistered. Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by:
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Kay Sievers authored
Show the initialization state(live, coming, going) of the module: $ cat /sys/module/usbcore/initstate live Signed-off-by:
Kay Sievers <kay.sievers@vrfy.org> Signed-off-by:
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Russell King authored
Signed-off-by:Russell King <rmk+kernel@arm.linux.org.uk>
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Kristoffer Ericson authored
* HP Jornada 720 uses epson 1356 chip for graphics. This chip is compatible with s1d13xxxfb driver. * HP Jornada 720 uses a Microprocessor Control Unit to talk to various hardware. We add it as a platform device in jornada720_init() * We provide pm_suspend() to avoid unresolved symbols in apm.o. We are unable to truly suspend now, hence the stub. * Speaker/microphone enabling got removed because it will be placed in the alsa driver. Signed-off-by: Filip Zyzniewski <(address hidden)> Signed-off-by: Kristoffer Ericson <(address hidden)> Signed-off-by: -
Tony Luck authored
IA64 is in a tiny minority providing these defines in pci.h. Almost everyone else has them in scatterlist.h Signed-off-by:Tony Luck <tony.luck@intel.com>
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Pavel Pisa authored
Support to change MX1 CPU frequency at runtime. Tested on PiKRON's PiMX1 board and seems to be fully stable up to 200 MHz end even as low as 8 MHz. Signed-off-by:
Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by:
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Russell King authored
i.MX needs to tweak the control register to support CPU frequency scaling. Rather than have folk blindly try and change the control register by writing to it and then wondering why it doesn't work, provide a method (which is safe for UP only, and therefore only available for UP) to achieve this. Signed-off-by: -
Nicolas Pitre authored
optimization The gcc manual says: |`-fdelete-null-pointer-checks' | Use global dataflow analysis to identify and eliminate useless | checks for null pointers. The compiler assumes that dereferencing | a null pointer would have halted the program. If a pointer is | checked after it has already been dereferenced, it cannot be null. | Enabled at levels `-O2', `-O3', `-Os'. Now the problem can be seen with this test case: #include <linux/prefetch.h> extern void bar(char *x); void foo(char *x) { prefetch(x); if (x) bar(x); } Because the constraint to the inline asm used in the prefetch() macro is a memory operand, gcc assumes that the asm code does dereference the pointer and the delete-null-pointer-checks optimization kicks in. Inspection of generated assembly for the above example shows that bar() is indeed called unconditionally without any test on the value of x. Of course in the prefetch case there is no real dereference and it cannot be assumed that a null pointer would have been caught at that point. This causes kernel oopses with constructs like hlist_for_each_entry() where the list's 'next' content is prefetched before the pointer is tested against NULL, and only when gcc feels like applying this optimization which doesn't happen all the time with more complex code. It appears that the way to prevent delete-null-pointer-checks optimization to occur in this case is to make prefetch() into a static inline function instead of a macro. At least this is what is done on x86_64 where a similar inline asm memory operand is used (I presume they would have seen the same problem if it didn't work) and resulting code for the above example confirms that. An alternative would consist of replacing the memory operand by a register operand containing the pointer, and use the addressing mode explicitly in the asm template. But that would be less optimal than an offsettable memory reference. Signed-off-by:Nicolas Pitre <nico@cam.org> Signed-off-by:
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Russell King authored
Oops, sorry about that. Signed-off-by: -
Ralf Baechle authored
Virtually index, physically tagged cache architectures can get away without cache flushing when forking. This patch adds a new cache flushing function flush_cache_dup_mm(struct mm_struct *) which for the moment I've implemented to do the same thing on all architectures except on MIPS where it's a no-op. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Atsushi Nemoto authored
Provide a custom copy_user_highpage() to deal with aliasing issues on MIPS. It uses kmap_coherent() to map an user page for kernel with same color. Rewrite copy_to_user_page() and copy_from_user_page() with the new interfaces to avoid extra cache flushing. The main part of this patch was originally written by Ralf Baechle; Atushi Nemoto did the the debugging. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
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Atsushi Nemoto authored
To allow a more effective copy_user_highpage() on certain architectures, a vma argument is added to the function and cow_user_page() allowing the implementation of these functions to check for the VM_EXEC bit. The main part of this patch was originally written by Ralf Baechle; Atushi Nemoto did the the debugging. Signed-off-by:
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Atsushi Nemoto authored
Problem: 1. There is a process containing two thread (T1 and T2). The thread T1 calls fork(). Then dup_mmap() function called on T1 context. static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) ... flush_cache_mm(current->mm); ... /* A */ (write-protect all Copy-On-Write pages) ... /* B */ flush_tlb_mm(current->mm); ... 2. When preemption happens between A and B (or on SMP kernel), the thread T2 can run and modify data on COW pages without page fault (modified data will stay in cache). 3. Some time after fork() completed, the thread T2 may cause a page fault by write-protect on a COW page. 4. Then data of the COW page will be copied to newly allocated physical page (copy_cow_page()). It reads data via kernel mapping. The kernel mapping can have different 'color' with user space mapping of the thread T2 (dcache aliasing). Therefore copy_cow_page() will copy stale data. Then the modified data in cache will be lost. In order to allow architecture code to deal with this problem allow architecture code to override copy_user_highpage() by defining __HAVE_ARCH_COPY_USER_HIGHPAGE in <asm/page.h>. The main part of this patch was originally written by Ralf Baechle; Atushi Nemoto did the the debugging. Signed-off-by:
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