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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-12-20 18:51:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-29 17:53:45 +0100 |
| commit | 3440093266b786d8b8b2506ea788f4462437cd7a (patch) | |
| tree | 3ffdf12da6b3238ba9c4d6ece651bdbd45f44c34 /arch/x86/kernel/dumpstack.c | |
| parent | 1b0eddf0a1d1beabc2f3b23bf807758667c30fc7 (diff) | |
| download | linux-stable-3440093266b786d8b8b2506ea788f4462437cd7a.tar.gz linux-stable-3440093266b786d8b8b2506ea788f4462437cd7a.tar.bz2 linux-stable-3440093266b786d8b8b2506ea788f4462437cd7a.zip | |
x86/cpu_entry_area: Move it out of the fixmap
commit 92a0f81d89571e3e8759366e050ee05cc545ef99 upstream.
Put the cpu_entry_area into a separate P4D entry. The fixmap gets too big
and 0-day already hit a case where the fixmap PTEs were cleared by
cleanup_highmap().
Aside of that the fixmap API is a pain as it's all backwards.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/dumpstack.c')
| -rw-r--r-- | arch/x86/kernel/dumpstack.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 1dd3f533d78c..36b17e0febe8 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -18,6 +18,7 @@ #include <linux/nmi.h> #include <linux/sysfs.h> +#include <asm/cpu_entry_area.h> #include <asm/stacktrace.h> #include <asm/unwind.h> |