From: Paul Mackerras <paulus@samba.org>
Date: Mon, 31 Oct 2005 03:40:03 +0000 (+1100)
Subject: powerpc: import a fix from arch/ppc/mm/pgtable.c
X-Git-Tag: firefly_0821_release~39876^2~70
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e2f2e58e7968f8446b1078a20a18bf8ea12b4fbc;p=firefly-linux-kernel-4.4.55.git

powerpc: import a fix from arch/ppc/mm/pgtable.c

... namely, the change to the 2-argument pte_alloc_kernel.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index f54fb9d3927a..f4e5ac122615 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -279,18 +279,16 @@ map_page(unsigned long va, phys_addr_t pa, int flags)
 	pte_t *pg;
 	int err = -ENOMEM;
 
-	spin_lock(&init_mm.page_table_lock);
 	/* Use upper 10 bits of VA to index the first level map */
 	pd = pmd_offset(pgd_offset_k(va), va);
 	/* Use middle 10 bits of VA to index the second-level map */
-	pg = pte_alloc_kernel(&init_mm, pd, va);
+	pg = pte_alloc_kernel(pd, va);
 	if (pg != 0) {
 		err = 0;
 		set_pte_at(&init_mm, va, pg, pfn_pte(pa >> PAGE_SHIFT, __pgprot(flags)));
 		if (mem_init_done)
 			flush_HPTE(0, va, pmd_val(*pd));
 	}
-	spin_unlock(&init_mm.page_table_lock);
 	return err;
 }