From: Paul Mundt <lethal@linux-sh.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>,
Matt Mackall <mpm@selenic.com>,
linux-mm@kvack.org
Subject: [PATCH] slob: sparsemem support.
Date: Fri, 13 Jul 2007 18:35:57 +0900 [thread overview]
Message-ID: <20070713093557.GA3403@linux-sh.org> (raw)
Currently slob is disabled if we're using sparsemem, due to an earlier
patch from Goto-san. Slob and static sparsemem work without any trouble
as it is, and the only hiccup is a missing slab_is_available() in the
case of sparsemem extreme. With this, we're rid of the last set of
restrictions for slob usage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
--
init/Kconfig | 2 +-
mm/slob.c | 8 ++++++++
2 files changed, 9 insertions(+), 1 deletion(-)
diff -urN linux-2.6.22-rc6-mm1.orig/init/Kconfig linux-2.6.22-rc6-mm1/init/Kconfig
--- linux-2.6.22-rc6-mm1.orig/init/Kconfig 2007-07-06 07:47:49.000000000 +0900
+++ linux-2.6.22-rc6-mm1/init/Kconfig 2007-07-06 09:50:29.000000000 +0900
@@ -625,7 +625,7 @@
and has enhanced diagnostics.
config SLOB
- depends on EMBEDDED && !SPARSEMEM
+ depends on EMBEDDED
bool "SLOB (Simple Allocator)"
help
SLOB replaces the SLAB allocator with a drastically simpler
diff -urN linux-2.6.22-rc6-mm1.orig/mm/slob.c linux-2.6.22-rc6-mm1/mm/slob.c
--- linux-2.6.22-rc6-mm1.orig/mm/slob.c 2007-07-06 07:47:50.000000000 +0900
+++ linux-2.6.22-rc6-mm1/mm/slob.c 2007-07-06 09:56:16.000000000 +0900
@@ -606,6 +606,14 @@
return 0;
}
+static unsigned int slob_ready __read_mostly;
+
+int slab_is_available(void)
+{
+ return slob_ready;
+}
+
void __init kmem_cache_init(void)
{
+ slob_ready = 1;
}
--
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next reply other threads:[~2007-07-13 9:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 9:35 Paul Mundt [this message]
2007-07-13 9:54 ` Pekka Enberg
2007-07-13 16:54 ` Matt Mackall
2007-07-17 6:09 ` Yasunori Goto
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