1 files changed, 2 insertions, 9 deletions

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index adca1e6537ab..4f1714c4c93b 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -61,7 +61,6 @@ static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
 static atomic_t addr_str_seq = ATOMIC_INIT(0);
 
 static struct page *zero_page;          /* used in certain error cases */
-static void *zero_page_address;         /* kernel virtual addr of zero_page */
 
 const char *ceph_pr_addr(const struct sockaddr_storage *ss)
 {
@@ -111,9 +110,6 @@ void _ceph_msgr_exit(void)
                 ceph_msgr_wq = NULL;
         }
 
-        BUG_ON(zero_page_address == NULL);
-        zero_page_address = NULL;
-
         BUG_ON(zero_page == NULL);
         kunmap(zero_page);
         page_cache_release(zero_page);
@@ -126,9 +122,6 @@ int ceph_msgr_init(void)
         zero_page = ZERO_PAGE(0);
         page_cache_get(zero_page);
 
-        BUG_ON(zero_page_address != NULL);
-        zero_page_address = kmap(zero_page);
-
         ceph_msgr_wq = alloc_workqueue("ceph-msgr", WQ_NON_REENTRANT, 0);
         if (ceph_msgr_wq)
                 return 0;
@@ -889,7 +882,7 @@ static int write_partial_msg_pages(struct ceph_connection *con)
                 } else {
                         page = zero_page;
                         if (do_datacrc)
-                                kaddr = zero_page_address;
+                                kaddr = kmap(page);
                 }
                 len = min_t(int, max_write - con->out_msg_pos.page_pos,
                             total_max_write);
@@ -908,7 +901,7 @@ static int write_partial_msg_pages(struct ceph_connection *con)
                                       con->out_msg_pos.page_pos + page_shift,
                                       len, 1);
 
-                if (do_datacrc && kaddr != zero_page_address)
+                if (do_datacrc)
                         kunmap(page);
 
                 if (ret <= 0)