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Benjamin Herrenschmidt 8dab5241d0 Rework ptep_set_access_flags and fix sun4c 
Some changes done a while ago to avoid pounding on ptep_set_access_flags and
update_mmu_cache in some race situations break sun4c which requires
update_mmu_cache() to always be called on minor faults.

This patch reworks ptep_set_access_flags() semantics, implementations and
callers so that it's now responsible for returning whether an update is
necessary or not (basically whether the PTE actually changed).  This allow
fixing the sparc implementation to always return 1 on sun4c.

[akpm@linux-foundation.org: fixes, cleanups]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: David Miller <davem@davemloft.net>
Cc: Mark Fortescue <mark@mtfhpc.demon.co.uk>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-16 13:16:16 -07:00
..
8xx_immap.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigahw.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
amigaints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigappc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigayle.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amipcmcia.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ans-lcd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bootinfo.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
bootx.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
btext.h [PATCH] powerpc: Unify udbg (#2) 2006-01-09 14:49:54 +11:00
commproc.h [POWERPC] Change rheap functions to use ulongs instead of pointers 2007-05-09 23:01:43 -05:00
cpm2.h [POWERPC] Change rheap functions to use ulongs instead of pointers 2007-05-09 23:01:43 -05:00
delay.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
floppy.h [PPC] Fix some irq breakage with ARCH=ppc 2006-10-06 21:09:40 +10:00
fs_pd.h POWERPC: Get rid of remapping the whole immr 2006-09-21 22:37:58 +04:00
gg2.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gt64260_defs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gt64260.h [POWERPC] ARCH=ppc pt_regs fixes 2006-10-10 11:55:25 +10:00
harrier.h [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
hawk_defs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hawk.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
highmem.h [PATCH] mm: pagefault_{disable,enable}() 2006-12-07 08:39:21 -08:00
hydra.h include files: convert "include" subdirectory to UTF-8 2007-05-09 08:58:21 +02:00
ibm4xx.h [POWERPC] Merge common virtex header files 2007-04-30 11:02:04 +10:00
ibm44x.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ibm403.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ibm405.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ibm_ocp_pci.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ibm_ocp.h [PATCH] ppc32: remove "jumbo" member from ocp_func_emac_data 2006-01-06 08:33:30 -08:00
immap_85xx.h [PATCH] Update email address for Kumar 2005-11-13 18:14:10 -08:00
immap_cpm2.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io.h [PATCH] kill eth_io_copy_and_sum() 2007-02-09 09:14:07 -08:00
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kgdb.h [PATCH] ppc: Fix ARCH=ppc build with xmon 2005-11-08 11:19:48 +11:00
m8260_pci.h [PATCH] ppc32: Support for 82xx PQII on-chip PCI bridge 2005-05-28 16:46:15 -07:00
machdep.h [POWERPC] Fix up after irq changes 2006-10-07 22:08:26 +10:00
md.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mk48t59.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu_context.h [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
mmu.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
mpc8xx.h [PATCH] ppc32: board-specific part of fs_enet update 2006-08-19 17:44:31 -04:00
mpc10x.h [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
mpc52xx_psc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mpc52xx.h [PATCH] ppc: Fix io.h for config with CONFIG_PCI not set 2006-11-13 14:49:25 +11:00
mpc83xx.h [PATCH] ppc: Fix io.h for config with CONFIG_PCI not set 2006-11-13 14:49:25 +11:00
mpc85xx.h [PATCH] ppc: Fix io.h for config with CONFIG_PCI not set 2006-11-13 14:49:25 +11:00
mpc8260_pci9.h [POWERPC] remove unused io accessors 2006-09-20 14:06:17 +10:00
mpc8260.h [PATCH] ppc32: board-specific part of fs_enet update 2006-08-19 17:44:31 -04:00
mv64x60_defs.h fix file specification in comments 2006-10-03 23:01:26 +02:00
mv64x60.h [POWERPC] ARCH=ppc pt_regs fixes 2006-10-10 11:55:25 +10:00
ocp_ids.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ocp.h [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree 2006-06-26 12:25:08 -07:00
open_pic.h [POWERPC] PReP fixup after irq changes 2006-10-07 22:11:20 +10:00
page.h typo fixes: mecanism -> mechanism 2006-06-30 18:20:44 +02:00
pc_serial.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pci-bridge.h [POWERPC] Fix mmap of PCI resource with hack for X 2006-12-08 17:21:06 +11:00
pci.h [POWERPC] Define pci_unmap_addr() et al. when CONFIG_NOT_COHERENT_CACHE=y 2006-12-08 17:10:18 +11:00
pgalloc.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pgtable.h Rework ptep_set_access_flags and fix sun4c 2007-06-16 13:16:16 -07:00
pnp.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ppc4xx_dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ppc4xx_pic.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ppc_sys.h [POWERPC] Stop using ppc_sys for Xilinx Virtex boards 2007-04-30 11:02:04 +10:00
ppcboot.h [PATCH] ppc32: cleanup AMCC PPC40x eval boards to support U-Boot 2005-11-07 07:53:26 -08:00
prep_nvram.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prom.h [POWERPC] Rename get_property to of_get_property 2007-04-13 03:55:17 +10:00
raven.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
reg_booke.h [POWERPC] Compile fixes for arch/powerpc dcr code 2007-02-07 14:03:23 +11:00
residual.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rio.h [PATCH] RapidIO support: ppc32 2005-11-07 07:53:47 -08:00
rtc.h fix file specification in comments 2006-10-03 23:01:26 +02:00
serial.h [POWERPC] Remove the broken Gemini support 2007-01-24 21:13:58 +11:00
smp.h [POWERPC] PReP fixup after irq changes 2006-10-07 22:11:20 +10:00
spinlock.h [PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks 2006-10-01 00:39:21 -07:00
suspend.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system.h Remove tas() 2007-05-08 11:15:20 -07:00
time.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
todc.h [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
traps.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zorro.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00