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authorPaolo Abeni2022-04-15 09:26:00 +0200
committerPaolo Abeni2022-04-15 09:26:00 +0200
commitedf45f007a31e86738f6be3065591ddad94477d1 (patch)
tree2805eeead7a03344a2b1185314d791a65fe15dc1 /mm/mremap.c
parentcaf968b483351d8825e68b06d77de5eb618aeb64 (diff)
parentd20339fa93e9810fcf87518bdd62e44f62bb64ee (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'mm/mremap.c')
-rw-r--r--mm/mremap.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 9d76da79594d..303d3290b938 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -486,6 +486,9 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
pmd_t *old_pmd, *new_pmd;
pud_t *old_pud, *new_pud;
+ if (!len)
+ return 0;
+
old_end = old_addr + len;
flush_cache_range(vma, old_addr, old_end);