- 15 Jan, 2006 40 commits
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Ingo Molnar authored
Allow gcc4 compilers to optimize unit-at-a-time. This flag enables gcc to "see" the entire C file before making optimisation decisions such as inline, which results in gcc making better decisions. One of the immediate effects of this is that static functions that are used only once now get inlined. gcc 3.4 has this flag as well, however gcc 3.x have a problem with inlining and stacks and as a result, enabling this flag there would cause excessive and unacceptable stack use. This problem is fixed in the gcc 4.x series. The x86-64 architecture already enables this feature so it's well tested already. Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Arjan van de Ven <arjan@infradead.org> Acked-by:
Jeff Garzik <jgarzik@pobox.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Ingo Molnar authored
This patch is the first in a series that tries to optimize the kernel in terms of size (and thus cache behavior, both cpu and pagecache). This first patch changes __always_inline to be a forced inline instead of the "regular" inline it was on everything except alpha. This forced inline matches the intention of the define better as a matter of documentation. There is no change in behavior by this patch, since "inline" currently is mapped to a forced inline anyway. Signed-off-by:
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Antonino A. Daplas authored
Update maintainers list. Signed-off-by:
Antonino Daplas <adaplas@pol.net> Signed-off-by:
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Christoph Hellwig authored
No need for a file argument. If we'd really need it it's in vma->vm_file already. gbefb and sgivwfb used to set vma->vm_file to the file argument, but the kernel alrady did that. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Christoph Hellwig authored
The ioctl and file arguments to ->fb_mmap are totally unused and there's not reason a driver should need them. Also update the ->fb_compat_ioctl prototype to be the same as ->fb_mmap. Signed-off-by:
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David Vrabel authored
Seems that the CS5530A chip used in Geode GX1 systems has some crazy feature that causes SMI traps when accessing the PCI configuration space of the video device. Various GX1 BIOSes seem to use this 'feature' to hide the real BARs of the device. This patch disables these traps (in an early PCI fixup) so that Linux sees the real, physical BARs and not the virtual ones provided by the BIOS. This should allow the GX1 framebuffer driver to work on more systems that have different BIOSes as the driver no longer guesses at what the virtual BARs mean. I'm not entirely sure it the correct solution as I can neither test regular VGA console nor the X's 'cyrix' video driver so there might be some breakage there -- probably best to get some more testers before applying it. Signed-off-by:
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Christian Trefzer authored
On a Dell Latitude CPi-A I noticed a strangeness wrt. the handling of an external monitor by the neomagic framebuffer driver, namely when the laptop is docked in a C/Dock II with the lid shut. A cold boot would result in the BIOS configuring the video chip to use the "external monitor only" mode, yet neofb would default to "internal LCD only". An attempt for a quick fix by using the Fn-F8 keystroke to toggle the display combination modes resulted in a reproductible hard lock, powering down being the only solution. The attached patch makes neofb probe the register for the current display mode, using that value as a default if nothing was specified as kernel/module parameter. Signed-off-by:
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Randy Dunlap authored
Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Randy Dunlap authored
Add 2 lockd kernel parameters and spell 2 others correctly. Signed-off-by:
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Deepak Saxena authored
This patch adds support for the Intel IXDP2351 to the CS89x0 driver. Signed-off-by:
Deepak Saxena <dsaxena@plexity.net> Signed-off-by:
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Lennert Buytenhek authored
cs89x0 inconsistently used 'int' and 'u32' for device register data. As the cs89x0 is a 16-bit chip, change the I/O accessors over to 'u16'. (Spotted by Deepak Saxena.) Signed-off-by:
Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by:
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Lennert Buytenhek authored
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Lennert Buytenhek authored
Credit Dmitry Pervushin for the PNX010X platform support. Signed-off-by:
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Abhay Salunke authored
This fixes http://bugzilla.kernel.org/show_bug.cgi?id=5854 Root cause: The dell_rbu driver creates entries in /sys/class/firmware/dell_rbu/ by calling request_firmware_nowait (without hotplug ) this function inturn starts a kernel thread which creates the entries in /sys/class/firmware/dell_rbu/loading , data and the thread waits on the user action to return control back to the callback fucntion of dell_rbu. The thread calls wait_on_completion which puts it in a D state until the user action happens. If there is no user action happening the load average goes up as the thread D state is taken in to account. Also after downloading the BIOS image the enrties go away momentarily but they are recreated from the callback function in dell_rbu. This causes the thread to get recreated causing the load average to permenently stay around 1. Fix: The dell_rbu also creates the entry /sys/devices/platform/dell_rbu/image_type at driver load time. The image type by default is mono if required the user can echo packet to image_type to make the BIOS update mechanism using packets. Also by echoing init in to image_type the /sys/class/firmware/dell_rbu entries can be created. The driver code was changed to not create /sys/class/firmware/dell_rbu entries during load time, and also to not create the above entries from the callback function. The entries are only created by echoing init to /sys/devices/platform/dell_rbu/image_type The user now needs to create the entries to download the image monolithic or packet. This fixes the issue since the kernel thread only is created when ever the user is ready to download the BIOS image; this minimizes the life span of the kernel thread and the load average goes back to normal. Signed off by Abhay Salunke <abhay_salunke@dell.com> Signed-off-by:
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Pekka Enberg authored
Remove the remaining kmalloc() wrapper bits from fs/smbfs/. Signed-off-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Pekka Enberg authored
Remove remaining kmalloc wrapper bits from fs/ncpfs/. Signed-off-by:
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Coywolf Qi Hunt authored
After abandon-gcc-295x.patch, this relocates the error-out-early comment. Signed-off-by:
Coywolf Qi Hunt <qiyong@fc-cn.com> Signed-off-by:
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Valdis.Kletnieks@vt.edu authored
fs/quota_v2.c can, under some conditions, issue a kernel message that says, in totality, 'failed read'. This patch does the following: 1) Gives a hint who issued the error message, so people reading the logs don't have to go grepping the entire kernel tree (with 11 false positives). 2) Say what amount of data we expected, and actually got. Signed-off-by:
Valdis Kletnieks <valdis.kletnieks@vt.edu> Cc: Jan Kara <jack@ucw.cz> Signed-off-by:
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Pekka Enberg authored
Remove redundant NULL check in reiserfs_lookup() as d_splice_alias() can take NULL inode as input. Signed-off-by:
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Pekka Enberg authored
Remove redundant NULL check in isofs_lookup() as d_splice_alias() can take NULL inode as input. Signed-off-by:
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Pekka Enberg authored
Remove redundant NULL check in ext3_lookup() as d_splice_alias() can take NULL inode as input. Signed-off-by:
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Pekka Enberg authored
Remove redundant NULL check in ext2_lookup() as d_splice_alias() can take NULL inode as input. Signed-off-by:
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Paul Jackson authored
The problem, reported in: http://bugzilla.kernel.org/show_bug.cgi?id=5859 and by various other email messages and lkml posts is that the cpuset hook in the oom (out of memory) code can try to take a cpuset semaphore while holding the tasklist_lock (a spinlock). One must not sleep while holding a spinlock. The fix seems easy enough - move the cpuset semaphore region outside the tasklist_lock region. This required a few lines of mechanism to implement. The oom code where the locking needs to be changed does not have access to the cpuset locks, which are internal to kernel/cpuset.c only. So I provided a couple more cpuset interface routines, available to the rest of the kernel, which simple take and drop the lock needed here (cpusets callback_sem). Signed-off-by:
Paul Jackson <pj@sgi.com> Signed-off-by:
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Heiko Carstens authored
The QUEUE_ORDERED_* numbers got renumbered and by accident the dasd driver was changed to use QUEUE_ORDERED_DRAIN instead of QUEUE_ORDERED_TAG. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
The chps[] array in struct channel_subsystem is one too short; therefore the code doesn't realize the chpid ff is already known. When several devices on chpid ff become available, the message "new_channel_path: could not register ff" is displayed for every device but the first one. Signed-off-by:
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Martin Schwidefsky authored
finish_arch_switch needs to update the user cpu time as well, not just the system cpu time. Otherwise the partial user cpu time of a process that is stored in the lowcore will be (mis-)accounted to the next process. Signed-off-by:
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Martin Schwidefsky authored
Add the missing third argument to the blk_queue_ordered call and use the constant QUEUE_ORDERED_DRAIN instead of "1". Signed-off-by:
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Martin Schwidefsky authored
Define a dummy pm_power_off pointer to make sys_reboot happy. Signed-off-by:
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Martin Schwidefsky authored
Remove useless spin_retry_counter and fix compilation for UP kernels. Signed-off-by:
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Alexey Dobriyan authored
Add missing fourth argument to cpcmd calls under !CONFIG_SMP. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Martin Schwidefsky authored
Add an include of linux/compiler.h in sigcontext.h to avoid compiler errors in user space apps because of a missing definition for __user. Signed-off-by:
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Heiko Carstens authored
The show_task function walks the kernel stack backchain of processes assuming that the processes are not running. Since this assumption is not correct walking the backchain can lead to an addressing exception and therefore to a kernel hang. So prevent the kernel hang (you still get incorrect results) verity that all read accesses are within the bounds of the kernel stack before performing them. Signed-off-by:
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Jan Glauber authored
Fix processing of messages larger than 2 * SHA256_BLOCK_SIZE. Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
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Jan Glauber authored
Call KM[C] only with a multiple of block size. Check return value of KM[C] instructions and complain about erros Signed-off-by:
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Jan Glauber authored
Provide ECB and CBC encrypt / decrypt functions to crypto API to speed up our hardware accelerated DES implementation. This new functions allow the crypto API to call ECB / CBC directly with large blocks in difference to the old functions that were calles with algorithm block size (8 bytes for DES). This is up to factor 10 faster than our old hardware implementation :) Signed-off-by:
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Jan Glauber authored
Beautify the s390 in-kernel-crypto des code. Signed-off-by:
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Chuck Ebbert authored
Recent changes caused part of stack traces from SysRq-T to print at KERN_EMERG loglevel. Also, parts of stack dump during oops were failing to print at that level when they should. Signed-off-by:
Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by:
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Randy Dunlap authored
Move the HOTPLUG_CPU option under "Processor type" instead of under "Bus options". This makes it the same for i386 as most other processor types (arm, ia64, parisc, ppc, s390, & x86_64; but not for powerpc). Besides, it takes me too long to find it under Bus options. I can't be the only person who has trouble finding it. Signed-off-by:
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Kumar Gala authored
Add support for the PowerPC MPC83xx watchdog. The MPC83xx has a simple watchdog that once enabled it can not be stopped, has some simple timeout range selection, and the ability to either reset the processor or take a machine check. Signed-off-by:
Dave Updegraff <dave@cray.org> Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by:
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