The patch titled
Subject: kexec: crash: don't save swapper_pg_dir for !CONFIG_MMU configurations
has been added to the -mm tree. Its filename is
kexec-crash-dont-save-swapper_pg_dir-for-config_mmu-configurations.patch
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From: Will Deacon <will.deacon@xxxxxxx>
Subject: kexec: crash: don't save swapper_pg_dir for !CONFIG_MMU configurations
nommu platforms don't have very interesting swapper_pg_dir pointers and
usually just #define them to NULL, meaning that we can't include them in
the vmcoreinfo on the kexec crash path.
This patch only saves the swapper_pg_dir if we have an MMU.
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Reviewed-by: Simon Horman <horms@xxxxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/kexec.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN kernel/kexec.c~kexec-crash-dont-save-swapper_pg_dir-for-config_mmu-configurations kernel/kexec.c
--- a/kernel/kexec.c~kexec-crash-dont-save-swapper_pg_dir-for-config_mmu-configurations
+++ a/kernel/kexec.c
@@ -1462,7 +1462,9 @@ static int __init crash_save_vmcoreinfo_
VMCOREINFO_SYMBOL(init_uts_ns);
VMCOREINFO_SYMBOL(node_online_map);
+#ifdef CONFIG_MMU
VMCOREINFO_SYMBOL(swapper_pg_dir);
+#endif
VMCOREINFO_SYMBOL(_stext);
VMCOREINFO_SYMBOL(vmlist);
_
Subject: Subject: kexec: crash: don't save swapper_pg_dir for !CONFIG_MMU configurations
Patches currently in -mm which might be from will.deacon@xxxxxxx are
linux-next.patch
arm-use-set_current_blocked-and-block_sigmask.patch
kexec-crash-dont-save-swapper_pg_dir-for-config_mmu-configurations.patch
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