io-cache: xdata needs to be passed for readv operations

io-cache xlator has been skipping xdata references when the
date needs to be read into page cache. This patch fixes the same.

Note: similar changes may be needed for other fops as well
which are handled by io-cache.

Change-Id: I28d73d4ba471d13eb55d0fd0b5197d222df77a2a
updates: bz#1655532
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
(cherry picked from commit b3d88a0904131f6851f4185e43f815ecc3353ab5)

1 files changed, 6 insertions, 1 deletions

diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c
index 1614166d973..173985c2dc4 100644
--- a/xlators/performance/io-cache/src/io-cache.c
+++ b/xlators/performance/io-cache/src/io-cache.c
@@ -412,6 +412,7 @@ ioc_cache_validate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
          * fd_ref on fd, safe to unref validate frame's private copy
          */
         fd_unref (local->fd);
+        dict_unref(local->xattr_req);
 
         STACK_DESTROY (frame->root);
 
@@ -496,11 +497,14 @@ ioc_cache_validate (call_frame_t *frame, ioc_inode_t *ioc_inode, fd_t *fd,
 
         validate_local->fd = fd_ref (fd);
         validate_local->inode = ioc_inode;
+        if (local && local->xattr_req)
+                validate_local->xattr_req = dict_ref(local->xattr_req);
         validate_frame->local = validate_local;
 
         STACK_WIND (validate_frame, ioc_cache_validate_cbk,
                     FIRST_CHILD (frame->this),
-                    FIRST_CHILD (frame->this)->fops->fstat, fd, NULL);
+                    FIRST_CHILD (frame->this)->fops->fstat, fd,
+                    validate_local->xattr_req);
 
 out:
         return ret;
@@ -1175,6 +1179,7 @@ ioc_readv (call_frame_t *frame, xlator_t *this, fd_t *fd,
         local->offset = offset;
         local->size = size;
         local->inode = ioc_inode;
+        local->xattr_req = dict_ref(xdata);
 
         gf_msg_trace (this->name, 0,
                       "NEW REQ (%p) offset "