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Date: Thu, 31 Aug 2017 01:30:19 -0600 From: "Jan Beulich" <JBeulich@...e.com> To: <mingo@...e.hu>, <tglx@...utronix.de>, <hpa@...or.com> Cc: <linux-kernel@...r.kernel.org> Subject: [PATCH v2] x86: use pr_cont() in dump_pagetable() The lack of newlines in preceding format strings is a clear indication that these were meant to be continuations of one another, and indeed output ends up quite a bit more compact (and readable) that way. Switch other plain printk()-s in the function instances to pr_info(), as requested. Signed-off-by: Jan Beulich <jbeulich@...e.com> --- arch/x86/mm/fault.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) --- v2: Use pr_cont() instead of printk(KERN_CONT ...) and switch others to pr_info(). --- 4.13-rc7/arch/x86/mm/fault.c +++ 4.13-rc7-x86-dumppgt-cont/arch/x86/mm/fault.c @@ -396,14 +396,18 @@ static void dump_pagetable(unsigned long pte_t *pte; #ifdef CONFIG_X86_PAE - printk("*pdpt = %016Lx ", pgd_val(*pgd)); + pr_info("*pdpt = %016Lx ", pgd_val(*pgd)); if (!low_pfn(pgd_val(*pgd) >> PAGE_SHIFT) || !pgd_present(*pgd)) goto out; +#define pr_pde pr_cont +#else +#define pr_pde pr_info #endif p4d = p4d_offset(pgd, address); pud = pud_offset(p4d, address); pmd = pmd_offset(pud, address); - printk(KERN_CONT "*pde = %0*Lx ", sizeof(*pmd) * 2, (u64)pmd_val(*pmd)); + pr_pde("*pde = %0*Lx ", sizeof(*pmd) * 2, (u64)pmd_val(*pmd)); +#undef pr_pde /* * We must not directly access the pte in the highpte @@ -415,9 +419,9 @@ static void dump_pagetable(unsigned long goto out; pte = pte_offset_kernel(pmd, address); - printk("*pte = %0*Lx ", sizeof(*pte) * 2, (u64)pte_val(*pte)); + pr_cont("*pte = %0*Lx ", sizeof(*pte) * 2, (u64)pte_val(*pte)); out: - printk("\n"); + pr_cont("\n"); } #else /* CONFIG_X86_64: */ @@ -565,7 +569,7 @@ static void dump_pagetable(unsigned long if (bad_address(pgd)) goto bad; - printk("PGD %lx ", pgd_val(*pgd)); + pr_info("PGD %lx ", pgd_val(*pgd)); if (!pgd_present(*pgd)) goto out; @@ -574,7 +578,7 @@ static void dump_pagetable(unsigned long if (bad_address(p4d)) goto bad; - printk("P4D %lx ", p4d_val(*p4d)); + pr_cont("P4D %lx ", p4d_val(*p4d)); if (!p4d_present(*p4d) || p4d_large(*p4d)) goto out; @@ -582,7 +586,7 @@ static void dump_pagetable(unsigned long if (bad_address(pud)) goto bad; - printk("PUD %lx ", pud_val(*pud)); + pr_cont("PUD %lx ", pud_val(*pud)); if (!pud_present(*pud) || pud_large(*pud)) goto out; @@ -590,7 +594,7 @@ static void dump_pagetable(unsigned long if (bad_address(pmd)) goto bad; - printk("PMD %lx ", pmd_val(*pmd)); + pr_cont("PMD %lx ", pmd_val(*pmd)); if (!pmd_present(*pmd) || pmd_large(*pmd)) goto out; @@ -598,12 +602,12 @@ static void dump_pagetable(unsigned long if (bad_address(pte)) goto bad; - printk("PTE %lx", pte_val(*pte)); + pr_cont("PTE %lx", pte_val(*pte)); out: - printk("\n"); + pr_cont("\n"); return; bad: - printk("BAD\n"); + pr_info("BAD\n"); } #endif /* CONFIG_X86_64 */
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