- 22 Mar, 2006 24 commits
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Nick Piggin authored
The VM has an interesting race where a page refcount can drop to zero, but it is still on the LRU lists for a short time. This was solved by testing a 0->1 refcount transition when picking up pages from the LRU, and dropping the refcount in that case. Instead, use atomic_add_unless to ensure we never pick up a 0 refcount page from the LRU, thus a 0 refcount page will never have its refcount elevated until it is allocated again. Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Nick Piggin authored
Atomic operation removal from slab Signed-off-by:
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Nick Piggin authored
More atomic operation removal from page allocator Signed-off-by:
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Nick Piggin authored
In the page release paths, we can be sure that nobody will mess with our page->flags because the refcount has dropped to 0. So no need for atomic operations here. Signed-off-by:
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Nick Piggin authored
PG_active is protected by zone->lru_lock, it does not need TestSet/TestClear operations. Signed-off-by:
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Nick Piggin authored
PG_lru is protected by zone->lru_lock. It does not need TestSet/TestClear operations. Signed-off-by:
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Nick Piggin authored
If vmscan finds a zero refcount page on the lru list, never ClearPageLRU it. This means the release code need not hold ->lru_lock to stabilise PageLRU, so that lock may be skipped entirely when releasing !PageLRU pages (because we know PageLRU won't have been temporarily cleared by vmscan, which was previously guaranteed by holding the lock to synchronise against vmscan). Signed-off-by:
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Christoph Hellwig authored
set_pgdir isn't needed anymore for a very long time. Remove the leftover implementation on sh64 and the stub on s390. Signed-off-by:
Christoph Hellwig <hch@lst.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Richard Curnow <rc@rc0.org.uk> Signed-off-by:
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Dmitry Torokhov authored
Do not use platform_device_register_simple() as it is going away, define dcdbas_driver and implement ->probe() and ->remove() functions so manual binding and unbinding will work with this driver. Also switch to using attribute_group when creating sysfs attributes and make sure to check and handle errors; explicitely remove attributes when detaching driver. Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
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Dmitry Torokhov authored
Do not use platform_device_register_simple() as it is going away. Signed-off-by:
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Dmitry Torokhov authored
mv64x600_wdt: convert to the new platform device interface Do not use platform_device_register_simple() as it is going away. Signed-off-by:
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Dmitry Torokhov authored
The patch does the following for v441xx seris drivers: - stop using platform_device_register_simple() as it is going away - mark ->probe() and ->remove() methods as __devinit and __devexit respectively - initialize "owner" field in driver structure so there is a link from /sys/modules to the driver - mark *_init() and *_exit() functions as __init and __exit Signed-off-by:
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Andrew Morton authored
Sam's tree includes a new check, which found that we're exporting strpbrk() multiple times. It seems that the convention is that this is exported from the arch files, so reove the lib/string.c export. Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: David Howells <dhowells@redhat.com> Cc: Greg Ungerer <gerg@uclinux.org> Signed-off-by:
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Atsushi Nemoto authored
Update the serial_txx9 driver. * More strict check in verify_port. Cleanup. * Do not insert a char caused previous overrun. * Fix some spin_locks. * Do not call uart_add_one_port for absent ports. Also, this patch removes a BROKEN tag from Kconfig. This driver has been marked as BROKEN by removal of uart_register_port, but it has been solved already on Sep 2005. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Joe Korty authored
Git patch 52dfa9a64cfb3dd01fa1ee1150d589481e54e28e [PATCH] move rtc_interrupt() prototype to rtc.h broke strace(1) builds. The below moves the kernel-only additions lower, under the already provided #ifdef __KERNEL__ statement. Cc: <stable@kernel.org> Signed-off-by:
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Alasdair G Kergon authored
The code that handles bios that span table target boundaries by breaking them up into smaller bios will not split an individual struct bio_vec into more than two pieces. Sometimes more than that are required. This patch adds a loop to break the second piece up into as many pieces as are necessary. Cc: "Abhishek Gupta" <abhishekgupt@gmail.com> Cc: Dan Smith <danms@us.ibm.com> Signed-off-by:
Alasdair G Kergon <agk@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Eric W. Biederman authored
A bare bones trivial patch to ensure we always get -EINVAL on the unsupported cases for sys_unshare. If this goes in before 2.6.16 it allows us to forward compatible with future applications using sys_unshare. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Cc: JANAK DESAI <janak@us.ibm.com> Cc: <stable@kerenl.org> Signed-off-by:
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Andrew Morton authored
__get_page_state() has an open-coded for_each_cpu_mask() loop in it. Tidy that up, then notice that the code was buggy: while (cpu < NR_CPUS) { unsigned long *in, *out, off; if (!cpu_isset(cpu, *cpumask)) continue; an obvious infinite loop. I guess we just never call it with a holey cpu mask. Even after my cpumask size-reduction work, this patch increases code size :( Cc: Paul Jackson <pj@sgi.com> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: -
Ravikiran G Thirumalai authored
This variable is rarely written to. Mark the variable accordingly. Signed-off-by:
Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by:
Shai Fultheim <shai@scalex86.org> Signed-off-by:
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Latchesar Ionkov authored
If a file is not found in v9fs_vfs_lookup, the function creates negative dentry, but doesn't assign any dentry ops. This leaves the negative entry in the cache (there is no d_delete to mark it for removal). If the file is created outside of the mounted v9fs filesystem, the file shows up in the directory with weird permissions. This patch assigns the default v9fs dentry ops to the negative dentry. Signed-off-by:
Latchesar Ionkov <lucho@ionkov.net> Signed-off-by:
Eric Van Hensbergen <ericvh@gmail.com> Cc: <stable@kernel.org> Signed-off-by:
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Antonino A. Daplas authored
The console cursor can be called in atomic context. Change memory allocation to use the GFP_ATOMIC flag in i810fb_cursor(). Signed-off-by:
Antonino Daplas <adaplas@pol.net> Cc: <stable@kernel.org> Signed-off-by:
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Andrew Morton authored
arch/i386/kernel/efi.c: In function `efi_call_phys_epilog': arch/i386/kernel/efi.c:118: warning: assignment makes integer from pointer without a cast Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: "Tolentino, Matthew E" <matthew.e.tolentino@intel.com> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by:
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Herbert Poetzl authored
check_acpi_pci() is called from arch/i386/kernel/setup.c even if CONFIG_ACPI is not defined, but the code in include/asm/acpi.h doesn't provide it in this case. Signed-off-by:
Herbert Pötzl <herbert@13thfloor.at> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by:
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Mike Galbraith authored
Remove the sleep_avg multiplier. This multiplier was necessary back when we had 10 seconds of dynamic range in sleep_avg, but now that we only have one second, it causes that one second to be compressed down to 100ms in some cases. This is particularly noticeable when compiling a kernel in a slow NFS mount, and I believe it to be a very likely candidate for other recently reported network related interactivity problems. In testing, I can detect no negative impact of this removal. Signed-off-by:
Mike Galbraith <efault@gmx.de> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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- 21 Mar, 2006 16 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64-SGI] SN2-XP reduce kmalloc wrapper inlining [IA64] MCA: remove obsolete ifdef [IA64] MCA: update MCA comm field for user space tasks [IA64] MCA: print messages in MCA handler [IA64-SGI] - Eliminate SN pio_phys_xxx macros. Move to assembly [IA64] use icc defined constant [IA64] add __builtin_trap definition for icc build [IA64] clean up asm/intel_intrin.h [IA64] map ia64_hint definition to intel compiler intrinsic [IA64] hooks to wait for mmio writes to drain when migrating processes [IA64-SGI] driver bugfixes and hardware workarounds for CE1.0 asic [IA64-SGI] Handle SC env. powerdown events [IA64] Delete MCA/INIT sigdelayed code [IA64-SGI] sem2mutex ioc4.c [IA64] implement ia64 specific mutex primitives [IA64] Fix UP build with BSP removal support. [IA64] support for cpu0 removal
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Linus Torvalds authored
This reverts commit 08f1d0b9 The "bt8xx/ conversion" for drivers/video/ hasn't actually percolated all the way to this tree, so the Makefile change escaped too soon. Build breakage noticed by Jeff Garzik <jeff@garzik.org> Signed-off-by:
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Jeff Garzik authored
- undo some Lindent damage by indenting member names - remove history at top of .c file, this is stored in the kernel repo changelog (in greater detail, even).
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Jeff Garzik authored
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Andrew Morton authored
drivers/net/skfp/fplustm.c: In function `enable_formac': drivers/net/skfp/fplustm.c:552: warning: large integer implicitly truncated to unsigned type drivers/net/skfp/fplustm.c:555: warning: large integer implicitly truncated to unsigned type These arguments were changed to `const', so the compiler can now see that it's doing and outw(..., 0xffffnnnn). Cast the arg to ushort. Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Nicolas Pitre authored
All accessor's different methods are now selected with C code and unused ones statically optimized away at compile time instead of being selected with #if's and #ifdef's. This has many advantages such as allowing the compiler to validate the syntax of the whole code, making it cleaner and easier to understand, and ultimately allowing people to define configuration symbols in terms of variables if they really want to dynamically support multiple bus configurations at the same time (with the unavoidable performance cost). Signed-off-by:
Nicolas Pitre <nico@cam.org> Signed-off-by:
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Don Fry authored
Boards with multiple PHYs were not being handled properly by the pcnet32 driver. This patch by Thomas Bogendoerfer with changes by me will allow Allied Telesyn 2700FTX and 2701FTX boards to use either the copper or the fiber interfaces. It has been tested on ia32 and ppc64 hardware. Philippe Seewer also tested and improved the patch. ethtool for pcnet32 already supports multiple phys. See also bugzilla bug 4219. Please apply to 2.6.16 Signed-off-by:
Don Fry <brazilnut@us.ibm.com> Signed-off-by:
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Stephen Hemminger authored
Set version to 1.1 Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
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Stephen Hemminger authored
The hardware has additional error trap interrupt bits. I have never seen them trigger, but if they do, it looks like this might be useful. Signed-off-by:
Stephen Hemminger <shemminger@osdl.rog> Signed-off-by:
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Stephen Hemminger authored
This patch decodes state and revovers from any races in the transmit timeout and NAPI logic. It should never trigger, but if it does then do the right thing. Signed-off-by:
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Stephen Hemminger authored
Small whitespace fixes. Signed-off-by:
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Stephen Hemminger authored
Add MSI support to sky2 driver. Signed-off-by:
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Stephen Hemminger authored
Change default coalescing parameters slightly, and allow wider range of values. Signed-off-by:
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Stephen Hemminger authored
Redo the interupt handling of sky2 driver based on the IRQ mangement documentation. All interrupts are handled by the device0 NAPI poll routine. Don't need to adjust interrupt mask in IRQ context, done only when changing device under RTNL. Therefore don't need hwlock anymore. Signed-off-by:
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Stephen Hemminger authored
Remove wake on lan support for now. It doesn't work right, and I don't have a machine with working suspend/resume to test or fix it. It will be re-enabled later. Signed-off-by:
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