ARM: 6052/1: kdump: make kexec work in interrupt context
When crash happens in interrupt context there is no userspace context. We always use current->active_mm in those cases. Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -1054,10 +1054,12 @@ void setup_mm_for_reboot(char mode)
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pgd_t *pgd;
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int i;
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if (current->mm && current->mm->pgd)
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pgd = current->mm->pgd;
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else
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pgd = init_mm.pgd;
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/*
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* We need to access to user-mode page tables here. For kernel threads
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* we don't have any user-mode mappings so we use the context that we
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* "borrowed".
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*/
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pgd = current->active_mm->pgd;
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base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT;
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if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale())
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