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Anton Blanchard c8d52465f9 [PATCH] Work around ppc64 compiler bug 
In the process of optimising our per cpu data code, I found a ppc64
compiler bug that has been around forever. Basically the current
RELOC_HIDE can end up trashing r30. Details of the bug can be found at

  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25572

This bug is present in all compilers before 4.1. It is masked by the
fact that our current per cpu data code is inefficient and causes
other loads that end up marking r30 as used.

A workaround identified by Alan Modra is to use the =r asm constraint
instead of =g.

Signed-off-by: Anton Blanchard <anton@samba.org>
[ Verified that this makes no real difference on x86[-64] */
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:32:35 -08:00
..
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 [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
asm-h8300 [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
asm-i386 [PATCH] kprobes: fix build breakage 2006-01-10 08:01:40 -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] Generic ioctl.h 2006-01-10 08:01:34 -08:00
asm-mips [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
asm-parisc [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
asm-powerpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge 2006-01-10 08:28:32 -08:00
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] kprobes: fix build breakage 2006-01-10 08:01:40 -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] Work around ppc64 compiler bug 2006-01-10 08:32:35 -08:00
math-emu
media V4L/DVB (3325): WSS output interface for av7110 2006-01-09 18:21:37 -02:00
mtd
net [PKT_SCHED]: Convert tc action functions to single skb pointers 2006-01-09 14:16:08 -08:00
pcmcia [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback 2006-01-06 00:03:24 +01:00
rdma
rxrpc
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