Replace "presense" with "presence"

Signed-off-by: Sakurai Shun <ssh1326@icloud.com>
---
 Documentation/mm/process_addrs.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/mm/process_addrs.rst b/Documentation/mm/process_addrs.rst
index 851680ead..042d64d72 100644
--- a/Documentation/mm/process_addrs.rst
+++ b/Documentation/mm/process_addrs.rst
@@ -775,7 +775,7 @@ lock, releasing or downgrading the mmap write lock also releases the VMA write
 lock so there is no :c:func:`!vma_end_write` function.
 
 Note that when write-locking a VMA lock, the :c:member:`!vma.vm_refcnt` is temporarily
-modified so that readers can detect the presense of a writer. The reference counter is
+modified so that readers can detect the presence of a writer. The reference counter is
 restored once the vma sequence number used for serialisation is updated.
 
 This ensures the semantics we require - VMA write locks provide exclusive write
-- 
2.54.0