This project is mirrored from https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git.
Pull mirroring updated .
- Jul 03, 2006
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Ingo Molnar authored
RWSEM_DEBUG used to be a printk based 'tracing' facility, probably used for very early prototypes of the rwsem code. Remove it. Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Ingo Molnar authored
Clean up rwsems. Signed-off-by:
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Ingo Molnar authored
lockdep needs to have the waitqueue lock initialized for on-stack waitqueues implicitly initialized by DECLARE_COMPLETION(). Introduce the API. Signed-off-by:
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Ingo Molnar authored
Introduce local_irq_enable_in_hardirq() API. It is currently aliased to local_irq_enable(), hence has no functional effects. This API will be used by lockdep, but even without lockdep this will better document places in the kernel where a hardirq context enables hardirqs. Signed-off-by:
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Ingo Molnar authored
lockdep wants to use the disable_irq()/enable_irq() prototypes before they are provied by the platform's asm/irq.h. So move them out of the CONFIG_GENERIC_HARDIRQS define - all architectures have a common prototype for this anyway. Add special lockdep variants of irq line disabling/enabling. These should be used for locking constructs that know that a particular irq context which is disabled, and which is the only irq-context user of a lock, that it's safe to take the lock in the irq-disabled section without disabling hardirqs. [akpm@osdl.org: build fix] Signed-off-by:
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Ingo Molnar authored
Add the per_cpu_offset() generic method. (used by the lock validator) Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Heiko Carstens authored
Provide a common print_ip_sym() function that prints the passed instruction pointer as well as the symbol belonging to it. Avoids adding a bunch of #ifdef CONFIG_64BIT in order to get the printk format right on 32/64 bit platforms. Acked-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Ingo Molnar authored
Add is_module_address() method - to be used by lockdep. Signed-off-by:
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Christoph Lameter authored
It turns out that it is advantageous to leave a small portion of unmapped file backed pages if all of a zone's pages (or almost all pages) are allocated and so the page allocator has to go off-node. This allows recently used file I/O buffers to stay on the node and reduces the times that zone reclaim is invoked if file I/O occurs when we run out of memory in a zone. The problem is that zone reclaim runs too frequently when the page cache is used for file I/O (read write and therefore unmapped pages!) alone and we have almost all pages of the zone allocated. Zone reclaim may remove 32 unmapped pages. File I/O will use these pages for the next read/write requests and the unmapped pages increase. After the zone has filled up again zone reclaim will remove it again after only 32 pages. This cycle is too inefficient and there are potentially too many zone reclaim cycles. With the 1% boundary we may still remove all unmapped pages for file I/O in zone reclaim pass. However. it will take a large number of read and writes to get back to 1% again where we trigger zone reclaim again. The zone reclaim 2.6.16/17 does not show this behavior because we have a 30 second timeout. [akpm@osdl.org: rename the /proc file and the variable] Signed-off-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Bjorn Helgaas authored
ACPI supplies a "shareable" indication, but PNPACPI ignores it. If a PNP device uses a shared interrupt, request_irq() fails because the PNP driver can't tell whether to supply SA_SHIRQ. This patch allows PNP drivers to test (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE) Signed-off-by:Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Matthieu Castet <castet.matthieu@free.fr> Cc: Li Shaohua <shaohua.li@intel.com> Cc: Len Brown <len.brown@intel.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Heiko Carstens authored
Have a special version of print_symbol() for s390 which clears the most significant bit of addr before calling __print_symbol(). This seems to be better than checking/changing each place in the kernel that saves an instruction pointer. Without this the output would look like: hardirqs last enabled at (30907): [<80018c6a>] 0x80018c6a hardirqs last disabled at (30908): [<8001e48c>] 0x8001e48c softirqs last enabled at (30904): [<8001dc96>] 0x8001dc96 softirqs last disabled at (30897): [<8001dc50>] 0x8001dc50 instead of this: hardirqs last enabled at (19421): [<80018c72>] cpu_idle+0x176/0x1c4 hardirqs last disabled at (19422): [<8001e494>] io_no_vtime+0xa/0x1a softirqs last enabled at (19418): [<8001dc9e>] do_softirq+0xa6/0xe8 softirqs last disabled at (19411): [<8001dc58>] do_softirq+0x60/0xe8 Acked-by:
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Andrew Morton authored
Remove duplicate/redundant/wrong IRQF_PERCPU definition. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Thomas Gleixner authored
The irqflags consolidation converted SA_PERCPU_IRQ to IRQF_PERCPU but did not define the new constant. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Thomas Gleixner authored
The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Linus: "The hacks in kernel/irq/handle.c are really horrid. REALLY horrid." They are indeed. Move the dyntick quirks to ARM where they belong. Signed-off-by:
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- Jul 02, 2006
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Thomas Gleixner authored
Signed-off-by:
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Thomas Gleixner authored
Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by:
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Thomas Gleixner authored
The recent interrupt rework introduced bit value conflicts with sparc. Instead of introducing new architecture flags mess, move the interrupt SA_ flags out of the signal namespace and replace them by interrupt related flags. This allows to remove the obsolete SA_INTERRUPT flag and clean up the bit field values. This patch: Move the interrupt related SA_ flags out of linux/signal.h and rename them to IRQF_ . This moves the interrupt related flags out of the signal namespace and allows to remove the architecture dependencies. SA_INTERRUPT is not needed by userspace and glibc so it can be removed safely. The existing SA_ constants are kept for easy transition and will be removed after a 6 month grace period. Signed-off-by:
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