- 31 Mar, 2006 40 commits
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by:
Adrian Bunk <bunk@stusta.de>
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by:
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Eric Sesterhenn authored
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by:
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Adrian Bunk authored
s/ducument/document/ Signed-off-by: -
Adrian Bunk authored
Replace a bouncing version of the email address of Wendy Xiong with a working one. Signed-off-by: -
Adrian Bunk authored
This patch fixes a typo in the AIC7XXX_DEBUG_MASK help text. Signed-off-by: -
Adrian Bunk authored
The note that SOFTWARE_SUSPEND doesn't need APM is helpful, but nowadays the information that it doesn't need ACPI, too, is even more helpful. Signed-off-by: -
Anders Larsen authored
Remove the obsolete Kconfig options MTD_CFI_AMDSTD_RETRY and MTD_CFI_AMDSTD_RETRY_MAX The code that depended on these was removed in early 2004, but Kconfig was not updated accordingly. Signed-off-by:
Anders Larsen <al@alarsen.net> Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: Allow skb headroom to be overridden [TCP]: Kill unused extern decl for tcp_v4_hash_connecting() [NET]: add SO_RCVBUF comment [NET]: Deinline some larger functions from netdevice.h [DCCP]: Use NULL for pointers, comfort sparse. [DECNET]: Fix refcount
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Jes Sorensen authored
Commit 70674f95: [PATCH] Optimize select/poll by putting small data sets on the stack resulted in the poll stack being 4-byte aligned on 64-bit architectures, causing misaligned accesses to elements in the array. This patch fixes it by declaring the stack in terms of 'long' instead of 'char'. Force alignment of poll and select stacks to long to avoid unaligned access on 64 bit architectures. Signed-off-by:
Jes Sorensen <jes@sgi.com> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [PATCH] libata: fix ata_xfer_tbl termination [PATCH] libata: make ata_qc_issue complete failed qcs [PATCH] libata: fix ata_qc_issue failure path [PATCH] ata_piix: fix ich6/m_map_db [libata] ahci: add ATI SB600 PCI IDs
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David Howells authored
The attached patch documents the Linux kernel's memory barriers. I've updated it from the comments I've been given. The per-arch notes sections are gone because it's clear that there are so many exceptions, that it's not worth having them. I've added a list of references to other documents. I've tried to get rid of the concept of memory accesses appearing on the bus; what matters is apparent behaviour with respect to other observers in the system. Interrupts barrier effects are now considered to be non-existent. They may be there, but you may not rely on them. I've added a couple of definition sections at the top of the document: one to specify the minimum execution model that may be assumed, the other to specify what this document refers to by the term "memory". I've made greater mention of the use of mmiowb(). I've adjusted the way in which caches are described, and described the fun that can be had with cache coherence maintenance being unordered and data dependency not being necessarily implicit. I've described (smp_)read_barrier_depends(). I've rearranged the order of the sections, so that memory barriers are discussed in abstract first, and then described the memory barrier facilities available on Linux, before going on to more real-world discussions and examples. I've added information about the lack of memory barriering effects with atomic ops and bitops. I've added information about control dependencies. I've added more diagrams to illustrate caching interactions between CPUs. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Kirill Korotaev authored
Wrong error path in dup_fd() - it should return NULL on error, not an address of already freed memory :/ Triggered by OpenVZ stress test suite. What is interesting is that it was causing different oopses in RCU like below: Call Trace: [<c013492c>] rcu_do_batch+0x2c/0x80 [<c0134bdd>] rcu_process_callbacks+0x3d/0x70 [<c0126cf3>] tasklet_action+0x73/0xe0 [<c01269aa>] __do_softirq+0x10a/0x130 [<c01058ff>] do_softirq+0x4f/0x60 ======================= [<c0113817>] smp_apic_timer_interrupt+0x77/0x110 [<c0103b54>] apic_timer_interrupt+0x1c/0x24 Code: Bad EIP value. <0>Kernel panic - not syncing: Fatal exception in interrupt Signed-Off-By:
Pavel Emelianov <xemul@sw.ru> Signed-Off-By:
Dmitry Mishin <dim@openvz.org> Signed-Off-By:
Kirill Korotaev <dev@openvz.org> Signed-Off-By:
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Nicolas Pitre authored
Turn some macros into inline functions and add proper type checking as well as being more readable. Also a minor comment adjustment. Signed-off-by:
Nicolas Pitre <nico@cam.org> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Jesper Juhl authored
Decrease the number of pointer derefs in drivers/serial/jsm/jsm_tty.c Benefits of the patch: - Fewer pointer dereferences should make the code slightly faster. - Size of generated code is smaller - Improved readability Signed-off-by:
Jesper Juhl <jesper.juhl@gmail.com> Acked-by:
"V. ANANDA KRISHNAN" <mansarov@us.ibm.com> Signed-off-by:
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Adrian Bunk authored
As announced, lookup_hash() can now become static. Signed-off-by:
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Adrian Bunk authored
The only user of get_wchan is the proc fs - and proc can't be built modular. Signed-off-by:
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NeilBrown authored
Signed-off-by:
Brad Campbell <brad@wasp.net.au> Signed-off-by:
Neil Brown <neilb@suse.de> Signed-off-by:
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NeilBrown authored
And remove the comments that were put in inplace of a fix too.... Signed-off-by:
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NeilBrown authored
Currently a device failure during recovery leaves bits set in the bitmap. This normally isn't a problem as the offending device will be rejected because of errors. However if device re-adding is being used with non-persistent bitmaps, this can be a problem. Signed-off-by:
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Michael Hanselmann authored
This patch removes the old radeon driver which has been replaced by a newer one. Signed-off-by:
Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Antonino Daplas <adaplas@pol.net> Signed-off-by:
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Antonino A. Daplas authored
The monochrome->color expansion routine that handles bitmaps which have (widths % 8) != 0 (slow_imageblit) produces corrupt characters in big-endian. This is caused by a bogus bit test in slow_imageblit(). Fix. This patch may deserve to go to the stable tree. The code has already been well tested in little-endian machines. It's only in big-endian where there is uncertainty and Herbert confirmed that this is the correct way to go. It should not introduce regressions. Signed-off-by:
Herbert Poetzl <herbert@13thfloor.at> Cc: <stable@kernel.org> Signed-off-by:
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Richard Purdie authored
Fixes for the pxafb driver: * Return -EINVAL for resolutions that are too large as per framebuffer driver policy. * Increase the error timeout for disabling the LCD controller. The current timeout is sometimes too short on the Sharp Zaurus Cxx00 hardware and an extra delay in an error path shouldn't pose any problems. * Fix a dev reference which causes a compile error when DEBUG is defined. Signed-off-by:
Richard Purdie <rpurdie@rpsys.net> Signed-off-by:
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Richard Purdie authored
Generalise the Corgi backlight driver by moving the default intensity and limit mask settings into the platform specific data structure. This enables the driver to support other Zaurus hardware, specifically the SL-6000x (Tosa) model. Also change the spinlock to a mutex (the spinlock is overkill). Signed-off-by:
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Richard Purdie authored
Updates to the HP Jornada 680 Backlight driver: - Correct the suspend/resume functions so the driver compiles (SUSPEND_POWER_DOWN/RESUME_POWER_ON no longer exist). - Convert the driver to match the recent platform device changes. - Replace the unsafe static struct platform_device with dynamic allocation. - Convert the driver to the new backlight code. This has not been tested on a device due to lack of hardware but wouldn't compile beforehand. Signed-off-by:
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Richard Purdie authored
Backlight class attributes are currently easy to implement incorrectly. Moving certain handling into the backlight core prevents this whilst at the same time makes the drivers simpler and consistent. The following changes are included: The brightness attribute only sets and reads the brightness variable in the backlight_properties structure. The power attribute only sets and reads the power variable in the backlight_properties structure. Any framebuffer blanking events change a variable fb_blank in the backlight_properties structure. The backlight driver has only two functions to implement. One function is called when any of the above properties change (to update the backlight brightness), the second is called to return the current backlight brightness value. A new attribute "actual_brightness" is added to return this brightness as determined by the driver having combined all the above factors (and any driver/device specific factors). Additionally, the backlight core takes care of checking the maximum brightness is not exceeded and of turning off the backlight before device removal. The corgi backlight driver is updated to reflect these changes. Signed-off-by:
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Alberto Mardegan authored
Add acceleration support in w100fb.c (i.e. ATI Imageons) for the copyarea and fillrect operations. Signed-off-by:
Alberto Mardegan <mardy@users.sourceforge.net> Signed-off-by:
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Antonino A. Daplas authored
The current display was not saved during initialization. This leads to hard to track console corruption, such as a misplaced cursor, which is correctible by switching consoles. Fix this minor bug. Signed-off-by:
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Eric W. Biederman authored
It is very common to hash a dentry and then to call lookup. If we take fs specific hash functions into account the full hash logic can get ugly. Further full_name_hash as an inline function is almost 100 bytes on x86 so having a non-inline choice in some cases can measurably decrease code size. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
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