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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-12-19 10:33:36 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-12-19 10:33:36 +0100
commit01956ef82685c0793214d0bd28889304c7ed9068 (patch)
tree8d4ec514ba1c9e88cb0fd90871777d4917ff113f /mm/vmalloc.c
parent866ced99cbaa08b8dafdc0b0febf49cd6c3cf5a8 (diff)
parentfa8a03bec68d9ef89da72277bd3501ed3daa6217 (diff)
Merge branch 'github.com/Freescale/linux-fslc/4.14-2.0.x-imx' into toradex_4.14-2.0.x-imx-next
Conflicts: sound/soc/codecs/sgtl5000.c
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r--mm/vmalloc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 6c906f6f16cc..0b8852d80f44 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1766,6 +1766,12 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
return NULL;
/*
+ * First make sure the mappings are removed from all page-tables
+ * before they are freed.
+ */
+ vmalloc_sync_all();
+
+ /*
* In this function, newly allocated vm_struct has VM_UNINITIALIZED
* flag. It means that vm_struct is not fully initialized.
* Now, it is fully initialized, so remove this flag here.
@@ -2314,6 +2320,9 @@ EXPORT_SYMBOL(remap_vmalloc_range);
/*
* Implement a stub for vmalloc_sync_all() if the architecture chose not to
* have one.
+ *
+ * The purpose of this function is to make sure the vmalloc area
+ * mappings are identical in all page-tables in the system.
*/
void __weak vmalloc_sync_all(void)
{