The patch titled
optional ZONE_DMA: introduce CONFIG_ZONE_DMA
has been added to the -mm tree. Its filename is
introduce-config_zone_dma.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: optional ZONE_DMA: introduce CONFIG_ZONE_DMA
From: Christoph Lameter <clameter@xxxxxxx>
This patch simply defines CONFIG_ZONE_DMA for all arches. We later do special
things with CONFIG_ZONE_DMA after the VM and an arch are prepared to work
without ZONE_DMA.
CONFIG_ZONE_DMA can be defined in two ways depending on how an architecture
handles ISA DMA.
First if CONFIG_GENERIC_ISA_DMA is set by the arch then we know that the arch
needs ZONE_DMA because ISA DMA devices are supported. We can catch this in
mm/Kconfig and do not need to modify arch code.
Second, arches may use ZONE_DMA in an unknown way. We set CONFIG_ZONE_DMA for
all arches that do not set CONFIG_GENERIC_ISA_DMA in order to insure backwards
compatibility. The arches may later undefine ZONE_DMA if their arch code has
been verified to not depend on ZONE_DMA.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/cris/Kconfig | 4 ++++
arch/frv/Kconfig | 4 ++++
arch/h8300/Kconfig | 4 ++++
arch/ia64/Kconfig | 4 ++++
arch/m68knommu/Kconfig | 4 ++++
arch/s390/Kconfig | 4 ++++
arch/v850/Kconfig | 3 +++
arch/xtensa/Kconfig | 4 ++++
mm/Kconfig | 4 ++++
9 files changed, 35 insertions(+)
diff -puN arch/cris/Kconfig~introduce-config_zone_dma arch/cris/Kconfig
--- a/arch/cris/Kconfig~introduce-config_zone_dma
+++ a/arch/cris/Kconfig
@@ -9,6 +9,10 @@ config MMU
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff -puN arch/frv/Kconfig~introduce-config_zone_dma arch/frv/Kconfig
--- a/arch/frv/Kconfig~introduce-config_zone_dma
+++ a/arch/frv/Kconfig
@@ -6,6 +6,10 @@ config FRV
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff -puN arch/h8300/Kconfig~introduce-config_zone_dma arch/h8300/Kconfig
--- a/arch/h8300/Kconfig~introduce-config_zone_dma
+++ a/arch/h8300/Kconfig
@@ -17,6 +17,10 @@ config SWAP
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config FPU
bool
default n
diff -puN arch/ia64/Kconfig~introduce-config_zone_dma arch/ia64/Kconfig
--- a/arch/ia64/Kconfig~introduce-config_zone_dma
+++ a/arch/ia64/Kconfig
@@ -22,6 +22,10 @@ config 64BIT
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config MMU
bool
default y
diff -puN arch/m68knommu/Kconfig~introduce-config_zone_dma arch/m68knommu/Kconfig
--- a/arch/m68knommu/Kconfig~introduce-config_zone_dma
+++ a/arch/m68knommu/Kconfig
@@ -17,6 +17,10 @@ config FPU
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff -puN arch/s390/Kconfig~introduce-config_zone_dma arch/s390/Kconfig
--- a/arch/s390/Kconfig~introduce-config_zone_dma
+++ a/arch/s390/Kconfig
@@ -7,6 +7,10 @@ config MMU
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config LOCKDEP_SUPPORT
bool
default y
diff -puN arch/v850/Kconfig~introduce-config_zone_dma arch/v850/Kconfig
--- a/arch/v850/Kconfig~introduce-config_zone_dma
+++ a/arch/v850/Kconfig
@@ -10,6 +10,9 @@ mainmenu "uClinux/v850 (w/o MMU) Kernel
config MMU
bool
default n
+config ZONE_DMA
+ bool
+ default y
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff -puN arch/xtensa/Kconfig~introduce-config_zone_dma arch/xtensa/Kconfig
--- a/arch/xtensa/Kconfig~introduce-config_zone_dma
+++ a/arch/xtensa/Kconfig
@@ -7,6 +7,10 @@ config FRAME_POINTER
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config XTENSA
bool
default y
diff -puN mm/Kconfig~introduce-config_zone_dma mm/Kconfig
--- a/mm/Kconfig~introduce-config_zone_dma
+++ a/mm/Kconfig
@@ -139,6 +139,10 @@ config SPLIT_PTLOCK_CPUS
default "4096" if PARISC && !PA20
default "4"
+config ZONE_DMA
+ def_bool y
+ depends on GENERIC_ISA_DMA
+
#
# support for page migration
#
_
Patches currently in -mm which might be from clameter@xxxxxxx are
fix-longstanding-load-balancing-bug-in-the-scheduler.patch
cleanup-radix_tree_derefreplace_slot-calling-conventions-warning-fixes.patch
reduce-max_nr_zones-remove-two-strange-uses-of-max_nr_zones.patch
reduce-max_nr_zones-fix-max_nr_zones-array-initializations.patch
reduce-max_nr_zones-make-display-of-highmem-counters-conditional-on-config_highmem.patch
reduce-max_nr_zones-make-display-of-highmem-counters-conditional-on-config_highmem-tidy.patch
reduce-max_nr_zones-move-highmem-counters-into-highmemc-h.patch
reduce-max_nr_zones-move-highmem-counters-into-highmemc-h-fix.patch
reduce-max_nr_zones-page-allocator-zone_highmem-cleanup.patch
reduce-max_nr_zones-use-enum-to-define-zones-reformat-and-comment.patch
reduce-max_nr_zones-use-enum-to-define-zones-reformat-and-comment-cleanup.patch
reduce-max_nr_zones-make-zone_dma32-optional.patch
reduce-max_nr_zones-make-zone_highmem-optional.patch
reduce-max_nr_zones-make-zone_highmem-optional-fix.patch
reduce-max_nr_zones-make-zone_highmem-optional-fix-fix.patch
reduce-max_nr_zones-remove-display-of-counters-for-unconfigured-zones.patch
reduce-max_nr_zones-fix-i386-srat-check-for-max_nr_zones.patch
mempolicies-fix-policy_zone-check.patch
apply-type-enum-zone_type.patch
apply-type-enum-zone_type-fix.patch
linearly-index-zone-node_zonelists.patch
slab-respect-architecture-and-caller-mandated-alignment.patch
slab-optimize-kmalloc_node-the-same-way-as-kmalloc.patch
slab-optimize-kmalloc_node-the-same-way-as-kmalloc-fix.patch
slab-extract-__kmem_cache_destroy-from-kmem_cache_destroy.patch
slab-do-not-panic-when-alloc_kmemlist-fails-and-slab-is-up.patch
add-__gfp_thisnode-to-avoid-fallback-to-other-nodes-and-ignore.patch
add-__gfp_thisnode-to-avoid-fallback-to-other-nodes-and-ignore-fix.patch
sys_move_pages-do-not-fall-back-to-other-nodes.patch
guarantee-that-the-uncached-allocator-gets-pages-on-the-correct.patch
cleanup-add-zone-pointer-to-get_page_from_freelist.patch
profiling-require-buffer-allocation-on-the-correct-node.patch
define-easier-to-handle-gfp_thisnode.patch
optimize-free_one_page.patch
do-not-check-unpopulated-zones-for-draining-and-counter.patch
extract-the-allocpercpu-functions-from-the-slab-allocator.patch
replace-min_unmapped_ratio-by-min_unmapped_pages-in-struct-zone.patch
zvc-support-nr_slab_reclaimable--nr_slab_unreclaimable.patch
zone_reclaim-dynamic-slab-reclaim.patch
zone_reclaim-dynamic-slab-reclaim-tidy.patch
zone-reclaim-with-slab-avoid-unecessary-off-node-allocations.patch
hugepages-use-page_to_nid-rather-than-traversing-zone-pointers.patch
numa-add-zone_to_nid-function.patch
numa-add-zone_to_nid-function-update.patch
slab-fix-kmalloc_node-applying-memory-policies-if-nodeid-==-numa_node_id.patch
add-numa_build-definition-in-kernelh-to-avoid-ifdef.patch
disable-gfp_thisnode-in-the-non-numa-case.patch
gfp_thisnode-for-the-slab-allocator-v2.patch
add-node-to-zone-for-the-numa-case.patch
add-node-to-zone-for-the-numa-case-fix.patch
get-rid-of-zone_table.patch
get-rid-of-zone_table-fix.patch
do-not-allocate-pagesets-for-unpopulated-zones.patch
zone_statistics-use-hot-node-instead-of-cold-zone_pgdat.patch
deal-with-cases-of-zone_dma-meaning-the-first-zone.patch
introduce-config_zone_dma.patch
optional-zone_dma-in-the-vm.patch
optional-zone_dma-for-i386.patch
optional-zone_dma-for-x86_64.patch
optional-zone_dma-for-ia64.patch
remove-zone_dma-remains-from-parisc.patch
remove-zone_dma-remains-from-sh-sh64.patch
x86-implement-always-locked-bit-ops-for-memory-shared-with-an-smp-hypervisor.patch
scheduler-numa-aware-placement-of-sched_group_allnodes.patch
zvc-support-nr_slab_reclaimable--nr_slab_unreclaimable-swap_prefetch.patch
reduce-max_nr_zones-swap_prefetch-remove-incorrect-use-of-zone_highmem.patch
numa-add-zone_to_nid-function-swap_prefetch.patch
readahead-state-based-method-aging-accounting-apply-type-enum-zone_type-readahead.patch
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