efi/x86: Use non-blocking SetVariable() for efi_delete_dummy_variable()
Presently, efi_delete_dummy_variable() uses set_variable() which might block, which the scheduler is rightfully upset about when used from the idle thread, producing this splat: "bad: scheduling from the idle thread!" So, make efi_delete_dummy_variable() use set_variable_nonblocking(), which, as the name suggests, doesn't block. Signed-off-by: NSai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20180711094040.12506-3-ard.biesheuvel@linaro.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>
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