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-rw-r--r--net/sunrpc/xdr.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 995c3fdc16c..79a55d56cc9 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -244,7 +244,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
pgto = pages + (pgbase >> PAGE_CACHE_SHIFT);
pgbase &= ~PAGE_CACHE_MASK;
- do {
+ for (;;) {
copy = PAGE_CACHE_SIZE - pgbase;
if (copy > len)
copy = len;
@@ -253,6 +253,10 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
memcpy(vto + pgbase, p, copy);
kunmap_atomic(vto, KM_USER0);
+ len -= copy;
+ if (len == 0)
+ break;
+
pgbase += copy;
if (pgbase == PAGE_CACHE_SIZE) {
flush_dcache_page(*pgto);
@@ -260,8 +264,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
pgto++;
}
p += copy;
-
- } while ((len -= copy) != 0);
+ }
flush_dcache_page(*pgto);
}