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authorOlof Johansson <olof@lixom.net>2018-09-25 11:30:47 -0700
committerOlof Johansson <olof@lixom.net>2018-09-25 11:30:47 -0700
commitcdddeefc39cc26b2d429f8f7ea3c35bf8cb8c6a1 (patch)
tree2628d4922d0675df5659439f22f5ebda9c4b302a /mm/util.c
parentbf1da406909b13903873d1f91346f99303fd8cb3 (diff)
parent11da3a7f84f19c26da6f86af878298694ede0804 (diff)
Merge tag 'v4.19-rc3' into next/drivers
Linux 4.19-rc3
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/util.c b/mm/util.c
index d2890a407332..9e3ebd2ef65f 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -435,11 +435,14 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
EXPORT_SYMBOL(kvmalloc_node);
/**
- * kvfree - free memory allocated with kvmalloc
- * @addr: pointer returned by kvmalloc
+ * kvfree() - Free memory.
+ * @addr: Pointer to allocated memory.
*
- * If the memory is allocated from vmalloc area it is freed with vfree().
- * Otherwise kfree() is used.
+ * kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc().
+ * It is slightly more efficient to use kfree() or vfree() if you are certain
+ * that you know which one to use.
+ *
+ * Context: Any context except NMI.
*/
void kvfree(const void *addr)
{