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authorUwe Kleine-König <Uwe.Kleine-Koenig@digi.com>2008-02-27 13:44:59 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-03-01 20:23:57 +0000
commit0c82d83cb09a1c9fd4d24d32064ce827709c104b (patch)
tree5aef9cca82718041a9f9b54cf5286925633c09d6 /arch
parentd862ccc570c875e1454fc57ed00f5a1081985b26 (diff)
downloadlinux-0c82d83cb09a1c9fd4d24d32064ce827709c104b.tar.gz
[ARM] Fix freeing of page tables for ARM in free_pgd_slow
Since 2f569af (CONFIG_HIGHPTE vs. sub-page page tables.) pte_free() calls
pte_lock_deinit() and dec_zone_page_state().  So free_pgd_slow must not call
the latter two when calling the first.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mm/pgd.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c
index 500c9610ab30..e0f19ab91163 100644
--- a/arch/arm/mm/pgd.c
+++ b/arch/arm/mm/pgd.c
@@ -75,7 +75,7 @@ no_pgd:
 void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd)
 {
 	pmd_t *pmd;
-	struct page *pte;
+	pgtable_t pte;
 
 	if (!pgd)
 		return;
@@ -90,10 +90,8 @@ void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd)
 		goto free;
 	}
 
-	pte = pmd_page(*pmd);
+	pte = pmd_pgtable(*pmd);
 	pmd_clear(pmd);
-	dec_zone_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE);
-	pte_lock_deinit(pte);
 	pte_free(mm, pte);
 	pmd_free(mm, pmd);
 free: