- 21 May, 2005 1 commit
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- 20 May, 2005 39 commits
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Andi Kleen authored
Needed for the powernow k8 driver for dual core support. Signed-off-by:
Andi Kleen <ak@suse.de> Cc: <mark.langsdorf@amd.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
This works around the too fast timer seen on some ATI boards. I don't feel confident enough about it yet to enable it by default, but give users the option. Patch and debugging from Christopher Allen Wing <wingc@engin.umich.edu>, with minor tweaks (renamed the option and documented it) Signed-off-by:
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Andi Kleen authored
The test case at http://cvs.sourceforge.net/viewcvs.py/posixtest/posixtestsuite/conforman ce/interfaces/clock_nanosleep/1-5.c fails if it runs as a 32bit process on x86_86 machines. The root cause is the sub 32bit process fails to restart the syscall after it is interrupted by a signal. The syscall number of sys_restart_syscall in table sys_call_table is __NR_restart_syscall (219) while it's __NR_ia32_restart_syscall (0) in ia32_sys_call_table. When regs->rax==(unsigned long)-ERESTART_RESTARTBLOCK, function do_signal doesn't distinguish if the process is 64bit or 32bit, and always sets restart syscall number as __NR_restart_syscall (219). Signed-off-by:
Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by:
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Andi Kleen authored
We need to hold the vmlist_lock while doing change_page_attr, otherwise we could reset someone else's mapping. Requires previous patch to add __remove_vm_area Signed-off-by:
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Andi Kleen authored
Caused oopses again. Also fix potential mismatch in checking if change_page_attr was needed. To do it without races I needed to change mm/vmalloc.c to export a __remove_vm_area that does not take vmlist lock. Noticed by Terence Ripperda and based on a patch of his. Signed-off-by:
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Andi Kleen authored
There was a "off by one quad word" error in there. I don't think it is exploitable because it will only store into a unused area, but better to plug it. Found and fixed by John Blackwood Signed-off-by:
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Andi Kleen authored
- Remove duplicated ifdef - Make core_id match what Intel uses - Initialize phys_proc_id correctly for non DC case - Handle non power of two core numbers. Fixes for both i386 and x86-64 Signed-off-by:
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Paul Jackson authored
This patch removes the entwining of cpusets and hotplug code in the "No more Mr. Nice Guy" case of sched.c move_task_off_dead_cpu(). Since the hotplug code is holding a spinlock at this point, we cannot take the cpuset semaphore, cpuset_sem, as would seem to be required either to update the tasks cpuset, or to scan up the nested cpuset chain, looking for the nearest cpuset ancestor that still has some CPUs that are online. So we just punt and blast the tasks cpus_allowed with all bits allowed. This reverts these lines of code to what they were before the cpuset patch. And it updates the cpuset Doc file, to match. The one known alternative to this that seems to work came from Dinakar Guniguntala, and required the hotplug code to take the cpuset_sem semaphore much earlier in its processing. So far as we know, the increased locking entanglement between cpusets and hot plug of this alternative approach is not worth doing in this case. Signed-off-by:
Paul Jackson <pj@sgi.com> Acked-by:
Nathan Lynch <ntl@pobox.com> Acked-by:
Dinakar Guniguntala <dino@in.ibm.com> Signed-off-by:
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Matt Porter authored
This patch fixed CONFIG_TASK_SIZE handling on 44x. Currently head_44x.S hardcodes 0x80000000, which breaks if user chooses to change TASK_SIZE (e.g. for 3G user-space). Tested on Ocotea in 3G/1G configuration. Signed-off-by:
Eugene Surovegin <ebs@ebshome.net> Signed-off-by:
Matt Porter <mporter@kernel.crashing.org> Signed-off-by:
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Kumar Gala authored
Initialization of 8250 serial ports that are platform devices require that at empty entry exists in the array of plat_serial8250_port. With out an empty entry we can get some pretty random behavior. Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Jeff Dike authored
From: Al Viro - we have error messages with KERN_ERR in them, so they should be printk-ed rather than printf-ed. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by:
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Jeff Dike authored
From: Al Viro - add three-level page table support to fixrange_init. Signed-off-by:
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Jeff Dike authored
Finally rip out the ubd-mmap code, which turned out to be broken by design. Signed-off-by:
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Jeff Dike authored
The serial UML OS-abstraction layer patch (um/kernel dir). This moves all systemcalls from initrd_user.c file under os-Linux dir and join initrd_user.c and initrd_kern.c files in new file initrd.c Signed-off-by:
Gennady Sharapov <Gennady.V.Sharapov@intel.com> Signed-off-by:
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Jeff Dike authored
From: Oleg Drokin: This patch is needed to support kernel modules that want to use clear_user() (that is exported symbol on all other architectures). Signed-off-by:
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Jeff Dike authored
Byte-swapping of the port and IP address passed in to the multicast driver by the user used to happen in different places, which was a bug in itself. The port also was swapped before being printk-ed, which led to a misleading message. This patch moves the port swapping to the same place as the IP address swapping. It also cleans up the error paths of mcast_open. Signed-off-by:
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Jeff Dike authored
This patch cleans up the delay implementations a bit, makes the loops unoptimizable, and exports __udelay and __const_udelay. Signed-off-by:
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Jeff Dike authored
Any access to a PROT_NONE page should segfault the process. A JVM seems to do this on purpose. Also, Al noticed some bogus code, which is now deleted. Signed-off-by:
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Jeff Dike authored
Some changes that I sent in didn't make 2.6.12-rc4 for some reason. This adds them back. We have an x86_64 definition of TOP_ADDR a reimplementation of the x86_64 csum_partial_copy_from_user some syntax fixes in arch/um/kernel/ptrace.c removal of a CFLAGS definition in the x86_64 Makefile some include changes in the x86_64 ptrace.c and user-offsets.h a syntax fix in elf-x86_64.h Also moved an include in the i386 and x86_64 Makefiles to make the symlinks work, and some small fixes from Al Viro. Signed-off-by:
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Peter Osterlund authored
If you tried to open a packet device first in read-only mode and then a second time in read-write mode, the second open succeeded even though the device was not correctly set up for writing. If you then tried to write data to the device, the writes would fail with I/O errors. This patch prevents that problem by making the second open fail with -EBUSY. Signed-off-by:
Peter Osterlund <petero2@telia.com> Cc: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by:
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James Bottomley authored
The new period/dt setting routines don't get the coupling of these parameters correct. This means that Domain Validation never gets DT set, and thus the drive gets restricted to U80. Fix this by restoring the couplings in the set routines. Signed-off-by:James Bottomley <James.Bottomley@SteelEye.com>
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James Bottomley authored
Tampering with the settings has to be done under the host lock ... slave_alloc isn't called under any lock, so this has to be done explicitly. Signed-off-by: -
James Bottomley authored
The allocation of all of our components should be done in slave alloc. Currently it's rather fancifully refcounted in the queuecommand callback. This patch moves allocation and destroy to their correct places in slave_alloc/slave_destory. Now we can guarantee that everywhere a device is requested, it's actually been allocated, so don't check for this anymore. Additionally, the per device busy timer was the only source of potential use after free. It's been deleted because Linux does the correct thing with busy returns, so there's no need to implement a separate timer in the driver. Finally, implement code that forces all the device parameters to zero (i.e. async and narrow) in the slave alloc, inform the spi class of the bios recorded maximums and wait until slave configure before trying anything more adventurous. Signed-off-by: -
James Bottomley authored
This should finish the spurious queue removal from aic7xxx (there are other queues that are probably unnecessary, but at least the major and obviously unnecessary ones are done with). Signed-off-by: -
James Bottomley authored
This was rendered obsolete by the busyq removal; remove some of the last remnants of its presence. Signed-off-by: -
Christoph Hellwig authored
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Christoph Hellwig authored
pci_alloc_consistent is under 4G by default. Also simplify the definition of bus_dmamap_t. Signed-off-by: -
Christoph Hellwig authored
There's not much sense in sharing code anymore now that aic7xxx uses various transport class facilities. Signed-off-by: -
Christoph Hellwig authored
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James Bottomley authored
The aic7xxx driver has two spurious queues in it's linux glue code: the busyq which queues incoming commands to the driver and the completeq which queues finished commands before sending them back to the mid-layer This patch just removes the busyq and makes the aic finally return the correct status to get the mid-layer to manage its queueing, so a command is either committed to the sequencer or returned to the midlayer for requeue. Signed-off-by: -
James Bottomley authored
This is similar to the previous sym2 problem. For Domain Validation to work we can't allow any period setting to turn wide on if it was previously off. Signed-off-by: -
James Bottomley authored
There's a basic need not to have parameters go under or over certain values when doing domain validation. The basic ones are max_offset, max_width and min_period This patch makes the transport class take and enforce these three limits. Currently they can be set by the user, although they could obviously be read from the HBA's on-board NVRAM area during slave_configure (if it has one). Signed-off-by: -
Linus Torvalds authored
Hopefully the addition of -E to my applypatch script will mean that I won't have these kinds of leftovers in the future.
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David S. Miller authored
The recent change to add a timeout to strbuf flushing had a negative performance impact. The udelay()'s are too long, and they were done in the wrong order wrt. the register read checks. Fix both, and things are happy again. There are more possible improvements in this area. In fact, PCI streaming buffer flushing seems to be part of the bottleneck in network receive performance on my SunBlade1000 box. Signed-off-by:David S. Miller <davem@davemloft.net>
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Corey Minyard authored
Add support for sysfs to the IPMI device interface. Clean-ups based on Dimitry Torokovs comment by Philipp Hahn. Signed-off-by:
Corey Minyard <minyard@acm.org> Signed-off-by:
Philipp Hahn <pmhahn@titan.lahn.de> Signed-off-by:
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Paul Mackerras authored
This fixes an uninitialized variable warning in arch/ppc/kernel/setup.c, and this time gcc is actually right, there is a path that could result in offset being uninitialized. Zero is a sane default in this instance. Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Paul Mackerras authored
Recently the __copy_tofrom_user routine was modified to avoid doing prefetches past the end of the source array. However, in doing so we introduced a bug in that it now returns the wrong value for the number of bytes not copied when a fault is encountered. This fixes it to return the correct number. Signed-off-by:
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Paul Mackerras authored
We are computing phys in the code below and never using. This patch takes out the redundant computation. Signed-off-by:
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Paul Mackerras authored
On ppc32, the platform code can supply a "progress" function that is used to show progress through the boot. These functions are usually in an init section and so can't be called after the init pages are freed. Now that the cpu bringup code can be called after the system is booted (for hotplug cpu) we can get the situation where the progress function can be called after boot. The simple fix is to set the progress function pointer to NULL when the init pages are freed, and that is what this patch does (note that all callers already check whether the function pointer is NULL before trying to call it). Signed-off-by:
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