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authorAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>2021-07-07 18:10:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-08 11:48:23 -0700
commitd6655dff2e254a2ee1ca62cf88bed5620a0b47e1 (patch)
tree3e6f9c782defc2453cd4f985c84d828bd0d3b232 /mm
parentmm/mremap: convert huge PUD move to separate helper (diff)
downloadlinux-dev-d6655dff2e254a2ee1ca62cf88bed5620a0b47e1.tar.xz
linux-dev-d6655dff2e254a2ee1ca62cf88bed5620a0b47e1.zip
mm/mremap: don't enable optimized PUD move if page table levels is 2
With two level page table don't enable move_normal_pud. Link: https://lkml.kernel.org/r/20210616045239.370802-5-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Hugh Dickins <hughd@google.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/mremap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 4bcaf17424c8..f5f3f6ad36f7 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -276,7 +276,7 @@ static inline bool move_normal_pmd(struct vm_area_struct *vma,
}
#endif
-#ifdef CONFIG_HAVE_MOVE_PUD
+#if CONFIG_PGTABLE_LEVELS > 2 && defined(CONFIG_HAVE_MOVE_PUD)
static bool move_normal_pud(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, pud_t *old_pud, pud_t *new_pud)
{