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-rw-r--r--fs/exec.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 0fc56c70c870..7e842d1bcb67 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -631,7 +631,6 @@ int copy_string_kernel(const char *arg, struct linux_binprm *bprm)
unsigned int bytes_to_copy = min_t(unsigned int, len,
min_not_zero(offset_in_page(pos), PAGE_SIZE));
struct page *page;
- char *kaddr;
pos -= bytes_to_copy;
arg -= bytes_to_copy;
@@ -640,11 +639,8 @@ int copy_string_kernel(const char *arg, struct linux_binprm *bprm)
page = get_arg_page(bprm, pos, 1);
if (!page)
return -E2BIG;
- kaddr = kmap_atomic(page);
flush_arg_page(bprm, pos & PAGE_MASK, page);
- memcpy(kaddr + offset_in_page(pos), arg, bytes_to_copy);
- flush_dcache_page(page);
- kunmap_atomic(kaddr);
+ memcpy_to_page(page, offset_in_page(pos), arg, bytes_to_copy);
put_arg_page(page);
}