- 25 Jun, 2006 40 commits
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Evgeniy Dushistov authored
Currently, ufs write support have two sets of problems: work with files and work with directories. This series of patches should solve the first problem. This patch is similar to http://lkml.org/lkml/2006/1/17/61 this patch complements it. The situation the same: in ufs_trunc_(not direct), we read block, check if count of links to it is equal to one, if so we finish cycle, if not continue. Because of "count of links" always >=2 this operation cause infinite cycle and hang up the kernel. Signed-off-by:
Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jesper Juhl authored
We can leak `clink' if drv->probe == 0. Signed-off-by:
Jesper Juhl <jesper.juhl@gmail.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by:
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Cliff Wickman authored
Fix of some spelling errors in fs/freevxfs error messages and comments Signed-off-by:
Cliff Wickman <cpw@sgi.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by:
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Alan Stern authored
Since raw_notifier chains don't benefit from any centralized locking protections, they shouldn't suffer from the associated limitations. Under some circumstances it might make sense for a raw_notifier callout routine to unregister itself from the notifier chain. This patch (as678) changes the notifier core to allow for such things. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Paul Mackerras authored
There are several instances of per_cpu(foo, raw_smp_processor_id()), which is semantically equivalent to __get_cpu_var(foo) but without the warning that smp_processor_id() can give if CONFIG_DEBUG_PREEMPT is enabled. For those architectures with optimized per-cpu implementations, namely ia64, powerpc, s390, sparc64 and x86_64, per_cpu() turns into more and slower code than __get_cpu_var(), so it would be preferable to use __get_cpu_var on those platforms. This defines a __raw_get_cpu_var(x) macro which turns into per_cpu(x, raw_smp_processor_id()) on architectures that use the generic per-cpu implementation, and turns into __get_cpu_var(x) on the architectures that have an optimized per-cpu implementation. Signed-off-by:
Paul Mackerras <paulus@samba.org> Acked-by:
David S. Miller <davem@davemloft.net> Acked-by:
Ingo Molnar <mingo@elte.hu> Acked-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Matt Mackall authored
The core input layer is already calling add_input_randomness. Signed-off-by:
Matt Mackall <mpm@selenic.com> Cc: Dmitry Torokhov <dtor_core@ameritech.net> Signed-off-by:
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Matt Mackall authored
Disk devices should use add_disk_randomness rather than SA_SAMPLE_RANDOM Signed-off-by:
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Matt Mackall authored
Disk devices should use the add_disk_randomness API rather than SA_SAMPLE_RANDOM. Signed-off-by:
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Matt Mackall authored
The floppy driver is already calling add_disk_randomness as it should, so this was redundant. Signed-off-by:
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Rob Landley authored
Upgrade scripts/bloat-o-meter to handle the names gcc 4 gives static symbols. Signed-off-by:
Rob Landley <rob@landley.net> Signed-off-by:
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Jesper Juhl authored
If CONFIG_KALLSYMS is defined and if it should happen that is_exported() is given a NULL 'mod' and lookup_symbol(name, __start___ksymtab, __stop___ksymtab) returns 0, then we'll end up dereferencing a NULL pointer. Signed-off-by:
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Michael Hanselmann authored
This patch contains a total rewrite of the backlight infrastructure for portable Apple computers. Backward compatibility is retained. A sysfs interface allows userland to control the brightness with more steps than before. Userland is allowed to upload a brightness curve for different monitors, similar to Mac OS X. [akpm@osdl.org: add needed exports] Signed-off-by:
Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by:
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Adrian Bunk authored
Became irrelevant when x86_64 unexported ia32_sys_call_table. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Cc: Andi Kleen <ak@muc.de> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by:
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Roman Zippel authored
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Roman Zippel <zippel@linux-m68k.org> Signed-off-by:
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
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Roman Zippel authored
Convert the generic irq code to use irq controller, this gets rid of the machine specific callbacks and gives better control over irq handling without duplicating lots of code. Signed-off-by:
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Roman Zippel authored
Introduce irq controller and use it to manage auto vector interrupts. Introduce setup_irq() which can be used for irq setup. Signed-off-by:
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Roman Zippel authored
Fix amiga irq numbering, so they are after the generic IRQ_AUTO defines and remove the IRQ_AMIGA_AUTO defines. Signed-off-by:
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Roman Zippel authored
Rename IRQ1..IRQ7 to IRQ_AUTO_1..IRQ_AUTO_7 and remove the duplicate defintions. Signed-off-by:
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Roman Zippel authored
Use separate entry points for auto and user vector interrupts and cleanup naming a little. Signed-off-by:
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Roman Zippel authored
Move some of the prints in die_if_kernel() to show_registers() and call that instead of show_stack(), so show_registers() prints now similiar info as other archs. Clean up the function a little. Signed-off-by:
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Roman Zippel authored
Additions to dma API with some small cleanups. Signed-off-by:
Richard Hirst <rhirst@levanta.com> Signed-off-by:
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Roman Zippel authored
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Roman Zippel authored
Make flush_icache() an inline function and clean it up a litte. Signed-off-by:
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Roman Zippel authored
Ignore empty pmd entry during iomap (these are the holes between the mappings). Signed-off-by:
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Roman Zippel authored
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Roman Zippel authored
gcc-3.x has a few problems detecting a constant parameter. Signed-off-by:
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Chuck Ebbert authored
Add cpu_relax() to infinite loops in crash.c and doublefault.c. This is the safest change. Signed-off-by:
Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by:
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Andreas Mohr authored
Add cpu_relax() to various smpboot.c init loops. cpu_relax() always implies a barrier (according to Arjan), so remove those as well. Signed-off-by:
Andreas Mohr <andi@lisas.de> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by:
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Jeremy Fitzhardinge authored
Clean up and refactor i386 sub-architecture setup. This change moves all the code from the asm-i386/mach-*/setup_arch_pre/post.h headers, into arch/i386/mach-*/setup.c. mach-*/setup_arch_pre.h is renamed to setup_arch.h, and contains only things which should be in header files. It is purely code-motion; there should be no functional changes at all. Several functions in arch/i386/kernel/setup.c needed to be made non-static so that they're visible to the code in mach-*/setup.c. asm-i386/setup.h is used to hold the prototypes for these functions. Signed-off-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by:
Chris Wright <chrisw@sous-sol.org> Cc: Zachary Amsden <zach@vmware.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Cc: Martin Bligh <mbligh@google.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Andrey Panin <pazke@donpac.ru> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by:
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Christoph Lameter authored
Hugh clarified the role of VM_LOCKED. So we can now implement page migration for mlocked pages. Allow the migration of mlocked pages. This means that try_to_unmap must unmap mlocked pages in the migration case. Signed-off-by:
Christoph Lameter <clameter@sgi.com> Acked-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Christoph Lameter authored
Hooks for calling vma specific migration functions With this patch a vma may define a vma->vm_ops->migrate function. That function may perform page migration on its own (some vmas may not contain page structs and therefore cannot be handled by regular page migration. Pages in a vma may require special preparatory treatment before migration is possible etc) . Only mmap_sem is held when the migration function is called. The migrate() function gets passed two sets of nodemasks describing the source and the target of the migration. The flags parameter either contains MPOL_MF_MOVE which means that only pages used exclusively by the specified mm should be moved or MPOL_MF_MOVE_ALL which means that pages shared with other processes should also be moved. The migration function returns 0 on success or an error condition. An error condition will prevent regular page migration from occurring. On its own this patch cannot be included since there are no users for this functionality. But it seems that the uncached allocator will need this functionality at some point. Signed-off-by:
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Christoph Lameter authored
Remove VM_LOCKED before remap_pfn range from device drivers and get rid of VM_SHM. remap_pfn_range() already sets VM_IO. There is no need to set VM_SHM since it does nothing. VM_LOCKED is of no use since the remap_pfn_range does not place pages on the LRU. The pages are therefore never subject to swap anyways. Remove all the vm_flags settings before calling remap_pfn_range. After removing all the vm_flag settings no use of VM_SHM is left. Drop it. Signed-off-by:
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Zach Brown authored
AOP_TRUNCATED_PAGE victims in read_pages() belong in the LRU Nick Piggin rightly pointed out that the introduction of AOP_TRUNCATED_PAGE to read_pages() was wrong to leave A_T_P victim pages in the page cache but not put them in the LRU. Failing to do so hid them from the VM. A_T_P just means that the aop method unlocked the page rather than performing IO. It would be very rare that the page was truncated between the unlock and testing A_T_P. So we leave the pages in the LRU for likely reuse soon rather than backing them back out of the page cache. We do this by matching the behaviour before the A_T_P introduction which added pages to the LRU regardless of what ->readpage() did. This doesn't include the unrelated cleanup in Nick's initial fix which changed read_pages() to return void to match its only caller's behaviour of ignoring errors. Signed-off-by:
Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
Zach Brown <zach.brown@oracle.com> Signed-off-by:
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