- 26 Jul, 2007 40 commits
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Alessandro Zummo authored
Alphabetic reordering of the drivers in the rtc subsys makefile. (akpm: merge this asap! Makefiles are the source of many patch conflicts..) Signed-off-by:
Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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KAMEZAWA Hiroyuki authored
release_pages() in mm/swap.c changes page_count() to be 0 without removing PageLRU flag... This means isolate_lru_page() can see a page, PageLRU() && page_count(page)==0.. This is BUG. (get_page() will be called against count=0 page.) Signed-off-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
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KAMEZAWA Hiroyuki authored
In usual, migrate_pages(page,,) is called with holding mm->sem by system call. (mm here is a mm_struct which maps the migration target page.) This semaphore helps avoiding some race conditions. But, if we want to migrate a page by some kernel codes, we have to avoid some races. This patch adds check code for following race condition. 1. A page which page->mapping==NULL can be target of migration. Then, we have to check page->mapping before calling try_to_unmap(). 2. anon_vma can be freed while page is unmapped, but page->mapping remains as it was. We drop page->mapcount to be 0. Then we cannot trust page->mapping. So, use rcu_read_lock() to prevent anon_vma pointed by page->mapping from being freed during migration. Signed-off-by:
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Davide Libenzi authored
Davi fixed a missing cast in the __put_user(), that was making timerfd return a single byte instead of the full value. Talking with Michael about the timerfd man page, we think it'd be better to use a u64 for the returned value, to align it with the eventfd implementation. This is an ABI change. The timerfd code is new in 2.6.22 and if we merge this into 2.6.23 then we should also merge it into 2.6.22.x. That will leave a few early 2.6.22 kernels out in the wild which might misbehave when a future timerfd-enabled glibc is run on them. mtk says: The difference would be that read() will only return 4 bytes, while the application will expect 8. If the application is checking the size of returned value, as it should, then it will be able to detect the problem (it could even be sophisticated enough to know that if this is a 4-byte return, then it is running on an old 2.6.22 kernel). If the application is not checking the return from read(), then its 8-byte buffer will not be filled -- the contents of the last 4 bytes will be undefined, so the u64 value as a whole will be junk. Signed-off-by:
Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Davi Arnaut <davi@haxent.com.br> Cc: <stable@kernel.org> Signed-off-by:
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Adrian Bunk authored
This patch fixes the following compile error introduced by commit e8666b27 and reported by Alexey Dobriyan: <-- snip --> CC arch/i386/kernel/acpi/cstate.o In file included from arch/i386/kernel/acpi/cstate.c:17: include/acpi/processor.h:88: error: expected specifier-qualifier-list before 'acpi_integer' <-- snip --> If you select something you must ensure that the dependencies of what you are selecting are fulfilled. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Cc: Alexey Dobriyan <adobriyan@sw.ru> Cc: Joshua Hoblitt <jhoblitt@ifa.hawaii.edu> Cc: Dave Jones <davej@redhat.com> Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Cc: Len Brown <lenb@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Rusty Russell authored
Documentation: The FIXMEs Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Rusty Russell authored
Documentation: The Switcher Signed-off-by:
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Rusty Russell authored
Documentation: The Host Signed-off-by:
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Rusty Russell authored
Documentation: The Launcher Signed-off-by:
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Rusty Russell authored
Documentation: The Drivers Signed-off-by:
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Rusty Russell authored
Documentation: The Guest Signed-off-by:
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Rusty Russell authored
The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Signed-off-by:
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Jeremy Fitzhardinge authored
Fix: linux/include/xen/page.h: In function mfn_pte: linux/include/xen/page.h:149: error: __supported_pte_mask undeclared (first use in this function) linux/include/xen/page.h:149: error: (Each undeclared identifier is reported only once linux/include/xen/page.h:149: error: for each function it appears in.) Signed-off-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by:
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David Brownell authored
Fix a typo turned up by a Coverity check: referring to the wrong register, which could cause problems with DS1338 RTCs whose oscillators halted. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Ben Dooks authored
Fix the include files moved around during the s3c24xx arch moves. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Ryusuke Konishi authored
A dummy inline function of register_nosave_region_late was accidentally removed by the recent PM patch that introduced suspend notifiers. This elimination causes the following compiler error on PPC machines. CC arch/powerpc/sysdev/dart_iommu.o arch/powerpc/sysdev/dart_iommu.c: In function 'iommu_init_late_dart': arch/powerpc/sysdev/dart_iommu.c:376: error: implicit declaration of function 'register_nosave_region_late' make[1]: *** [arch/powerpc/sysdev/dart_iommu.o] Error 1 make: *** [arch/powerpc/sysdev] Error 2 This patch fixes the problem. Signed-off-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
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Christoph Lameter authored
Signed-off-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Randy Dunlap authored
Fix kmod.c: Warning(linux-2.6.23-rc1//kernel/kmod.c:364): No description found for parameter 'envp' Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Ulrich Drepper authored
This is probably a leftover from a time when the return wasn't there yet. Now the extra assignment is just irritating. Signed-off-by:
Ulrich Drepper <drepper@redhat.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by:
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Al Viro authored
Have put_unaligned() warn if types would be wrong for assignment, slap force-casts where needed. Cast the result of get_unaligned to typeof(*ptr). With that in place we get proper typechecking, both from gcc and from sparse, including that for bitwise types. Signed-off-by:
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Al Viro authored
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Al Viro authored
Signed-off-by:
Jeff Garzik <jeff@garzik.org> Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
Since powerpc insists on printing the _value_ of condition and on casting it to long... At least let's make it a force-cast. Signed-off-by:
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Al Viro authored
We really need force-cast when converting to final result type; unsigned long can be silently converted to integer types and to pointers, but not to bitwise. Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
Address of auto variable is not a userland pointer. A good thing, too, since if pppol2tp_tunnel_getsockopt() would _really_ get a userland pointer as argument, it would be an instant roothole... Signed-off-by:
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Al Viro authored
u32* volatile cyclone_timer means volatile auto pointer to u32, which is clearly not what had been intended (we never even take the address of that variable, let alone pass it to something that could change it behind our back). u32 volatile * is what the authors apparently wanted to say, but in reality we don't need that qualifier there at all - it's (properly) only passed to iomem helpers which takes care of that stuff just fine. Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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