The patch titled
i386: account for module percpu space separately from kernel percpu
has been added to the -mm tree. Its filename is
i386-account-for-module-percpu-space-separately-from-kernel.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: i386: account for module percpu space separately from kernel percpu
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Rather than using a single constant PERCPU_ENOUGH_ROOM, compute it as the
sum of kernel_percpu + PERCPU_MODULE_RESERVE. This is taken directly from
the x86_64 tree.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-i386/percpu.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff -puN include/asm-i386/percpu.h~i386-account-for-module-percpu-space-separately-from-kernel include/asm-i386/percpu.h
--- a/include/asm-i386/percpu.h~i386-account-for-module-percpu-space-separately-from-kernel
+++ a/include/asm-i386/percpu.h
@@ -5,6 +5,16 @@
#include <asm-generic/percpu.h>
#else
+#ifdef CONFIG_MODULES
+# define PERCPU_MODULE_RESERVE 8192
+#else
+# define PERCPU_MODULE_RESERVE 0
+#endif
+
+#define PERCPU_ENOUGH_ROOM \
+ (ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
+ PERCPU_MODULE_RESERVE)
+
/*
* PER_CPU finds an address of a per-cpu variable.
*
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
i386-simplify-smp_call_function-by-using-common-implementation.patch
i386-account-for-module-percpu-space-separately-from-kernel.patch
fixes-and-cleanups-for-earlyprintk-aka-boot-console.patch
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