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93efbde2c3
The 64-bit doublefault handler is much nicer than the 32-bit one. As a first step toward unifying them, make the 64-bit handler self-contained. This should have no effect no functional effect except in the odd case of x86_64 with CONFIG_DOUBLEFAULT=n in which case it will change the logging a bit. This also gets rid of CONFIG_DOUBLEFAULT configurability on 64-bit kernels. It didn't do anything useful -- CONFIG_DOUBLEFAULT=n didn't actually disable doublefault handling on x86_64. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>