protect fd_ctx get/set in afr_transaction and afr.c with locks

Signed-off-by: Anand V. Avati <avati@amp.gluster.com>

1 files changed, 18 insertions, 14 deletions

diff --git a/xlators/cluster/afr/src/afr-transaction.c b/xlators/cluster/afr/src/afr-transaction.c
index 3df9f07e5a3..f9a0a8806fc 100644
--- a/xlators/cluster/afr/src/afr-transaction.c
+++ b/xlators/cluster/afr/src/afr-transaction.c
@@ -67,20 +67,24 @@ __mark_all_success (int32_t *pending, int child_count)
 static int
 __is_first_write_on_fd (xlator_t *this, fd_t *fd)
 {
-	int op_ret     = 0;
-	int _ret       = -1;
-
-	_ret = fd_ctx_get (fd, this, NULL);
-	if (_ret < 0) {
-		gf_log (this->name, GF_LOG_DEBUG,
-			"first writev() on fd=%p, writing changelog",
-			fd);
-
-		_ret = fd_ctx_set (fd, this, 0xaf1);
-		op_ret = 1;
-	}
-
-	return op_ret;
+        int op_ret     = 0;
+        int _ret       = -1;
+
+        LOCK (&fd->inode->lock);
+        {
+                _ret = fd_ctx_get (fd, this, NULL);
+                if (_ret < 0) {
+                        gf_log (this->name, GF_LOG_DEBUG,
+                                "first writev() on fd=%p, writing changelog",
+                                fd);
+
+                        _ret = fd_ctx_set (fd, this, 0xaf1);
+                        op_ret = 1;
+                }
+        }
+        UNLOCK (&fd->inode->lock);
+
+        return op_ret;
 }