From: Ira Weiny <ira.we...@intel.com>
These kmap() calls are localized to a single thread. To avoid the over
head of global PKRS updates use the new kmap_thread() call.
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Ira Weiny <ira.we...@intel.com>
---
drivers/android/binder_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 69609696a843..5f50856caad7 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -1118,9 +1118,9 @@ binder_alloc_copy_user_to_buffer(struct binder_alloc
*alloc,
page = binder_alloc_get_page(alloc, buffer,
buffer_offset, &pgoff);
size = min_t(size_t, bytes, PAGE_SIZE - pgoff);
- kptr = kmap(page) + pgoff;
+ kptr = kmap_thread(page) + pgoff;
ret = copy_from_user(kptr, from, size);
- kunmap(page);
+ kunmap_thread(page);
if (ret)
return bytes - size + ret;
bytes -= size;
--
2.28.0.rc0.12.gb6a658bd00c9
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