From: Aristeu Rozanski <aroza...@redhat.com>
rhashtable currently is built unconditionally:
text data bss dec hex filename
9158 2008 5264 16430 402e lib/rhashtable.o
9158 2008 5264 16430 402e (TOTALS)
and it's used by netlink (which currently can't be optionally built if
CONFIG_NET is enabled) and netfilter_hash. This patch is useful for
situations in which memory footprint is a concern and networking is not
enabled.
Cc: David S. Miller <da...@davemloft.net>
Cc: Fabian Frederick <f...@skynet.be>
Cc: Geert Uytterhoeven <ge...@linux-m68k.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Pablo Neira Ayuso <pa...@netfilter.org>
Cc: Thomas Graf <tg...@suug.ch>
Cc: Ying Xue <ying....@windriver.com>
Cc: Josh Triplett <j...@joshtriplett.org>
Signed-off-by: Aristeu Rozanski <aroza...@redhat.com>
---
lib/Kconfig | 6 ++++++
lib/Makefile | 4 +++-
net/Kconfig | 1 +
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/lib/Kconfig b/lib/Kconfig
index 108196c..d6b8879 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -369,6 +369,12 @@ config ASSOCIATIVE_ARRAY
for more information.
+config RHASH_TABLE
+ bool "Resizable hash table"
+ default y
+ help
+ Resizable, scalable and concurrent hash table implementation.
+
config HAS_IOMEM
boolean
depends on !NO_IOMEM
diff --git a/lib/Makefile b/lib/Makefile
index 53fd120..43d29ff 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -26,7 +26,7 @@ obj-y += bcd.o div64.o sort.o parser.o debug_locks.o
random32.o \
bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
gcd.o lcm.o list_sort.o uuid.o iovec.o clz_ctz.o \
bsearch.o find_last_bit.o find_next_bit.o llist.o memweight.o kfifo.o \
- percpu-refcount.o percpu_ida.o hash.o rhashtable.o
+ percpu-refcount.o percpu_ida.o hash.o
obj-y += string_helpers.o
obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
obj-y += kstrtox.o
@@ -155,6 +155,8 @@ obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
+obj-$(CONFIG_RHASH_TABLE) += rhashtable.o
+
libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
fdt_empty_tree.o
$(foreach file, $(libfdt_files), \
diff --git a/net/Kconfig b/net/Kconfig
index 99815b5..d376630 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -7,6 +7,7 @@ menuconfig NET
select NLATTR
select GENERIC_NET_UTILS
select BPF
+ select RHASH_TABLE
---help---
Unless you really know what you are doing, you should say Y here.
The reason is that some programs need kernel networking support even
--
1.8.3.1
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