Paul Mackerras 5388fb1025 [PATCH] powerpc: Avoid potential FP corruption with preempt and UP ... Heikki Lindholm pointed out that there was a potential race with the lazy CPU state (FP, VR, EVR) stuff if preempt is enabled. The race is that in the process of restoring FP state on sigreturn, the task gets preempted by a user task that wants to use the FPU. It will take an FP unavailable exception, which will write the current FPU state to the thread_struct, overwriting the values which sigreturn has stored. Note that this can only happen on UP since we don't implement lazy CPU state on SMP. The fix is to flush the lazy CPU state before updating the thread_struct. To do this we re-use the flush_lazy_cpu_state() function from process.c. Signed-off-by: Paul Mackerras <paulus@samba.org>		2006-01-12 20:09:29 +11:00
..
acpi	[ACPI] increase owner_id limit to 64 from 32	2005-12-21 04:52:16 -05:00
asm-alpha	[PATCH] mutex subsystem, add default include/asm-*/mutex.h files	2006-01-09 15:59:19 -08:00
asm-arm	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-arm26	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-cris	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-frv	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-generic	Fix mutex_trylock() copy-and-paste bug (x86, x86-64, generic mutex-dec.h)	2006-01-11 15:50:47 -08:00
asm-h8300	[PATCH] include/asm-h8300/page.h: remove unused KTHREAD_SIZE #define	2006-01-11 18:42:09 -08:00
asm-i386	[PATCH] i386: Replace broken serialize_cpu in microcode driver with correct sync_core	2006-01-11 19:04:58 -08:00
asm-ia64	[PATCH] kprobes: fix build breakage	2006-01-10 08:01:40 -08:00
asm-m32r	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-m68k	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-m68knommu	[PATCH] m68knommu: save reg a5 on context change	2006-01-10 09:31:27 -08:00
asm-mips	MIPS: R2: Try to bulletproof instruction_hazard against miss-compilation.	2006-01-10 13:39:08 +00:00
asm-parisc	[PARISC] Use C99 initializers in asm-parisc/processor.h	2006-01-10 21:52:45 -05:00
asm-powerpc	[PATCH] powerpc: Avoid potential FP corruption with preempt and UP	2006-01-12 20:09:29 +11:00
asm-ppc	[PATCH] powerpc: pci_address_to_pio fix	2006-01-09 15:05:56 +11:00
asm-s390	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-sh	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-sh64	[PATCH] include/asm-sh64/: "extern inline" -> "static inline"	2006-01-10 08:02:02 -08:00
asm-sparc	[PATCH] mutex subsystem, add default include/asm-*/mutex.h files	2006-01-09 15:59:19 -08:00
asm-sparc64	[PATCH] kprobes: fix build breakage	2006-01-10 08:01:40 -08:00
asm-um	[PATCH] dump_thread() cleanup	2006-01-10 08:01:25 -08:00
asm-v850	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
asm-x86_64	[PATCH] x86_64: Some housekeeping in local APIC code	2006-01-11 19:05:03 -08:00
asm-xtensa	[PATCH] Generic ioctl.h	2006-01-10 08:01:34 -08:00
keys	[PATCH] Keys: Remove key duplication	2006-01-06 08:33:29 -08:00
linux	[PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_arch	2006-01-11 19:05:01 -08:00
math-emu
media	V4L/DVB (3347): Fixes some bad global variables	2006-01-11 20:26:13 -02:00
mtd	[MTD] user-abi: Clean up trailing white spaces	2005-11-07 14:43:11 +01:00
net	[INET]: congestion and af_ops can be const	2006-01-10 12:54:26 -08:00
pcmcia	[PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback	2006-01-06 00:03:24 +01:00
rdma	[IB] uverbs: have kernel return QP capabilities	2005-11-10 10:22:50 -08:00
rxrpc	[PATCH] gfp flags annotations - part 1	2005-10-08 15:00:57 -07:00
scsi	Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block	2006-01-06 09:01:25 -08:00
sound	[PATCH] DocBook: fix kernel-doc comments	2006-01-10 08:01:53 -08:00
video	[PATCH] include/video/newport.h: "extern inline" -> "static inline"	2006-01-10 08:01:50 -08:00