orangefs: wait_for_direct_io(): restore the position in iter when restarting
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 40b3805..c767ec7 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -133,6 +133,7 @@
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
struct orangefs_bufmap *bufmap = NULL;
struct orangefs_kernel_op_s *new_op = NULL;
+ struct iov_iter saved = *iter;
int buffer_index = -1;
ssize_t ret;
@@ -211,6 +212,8 @@
if (ret == -EAGAIN && op_state_purged(new_op)) {
orangefs_bufmap_put(bufmap, buffer_index);
buffer_index = -1;
+ if (type == ORANGEFS_IO_WRITE)
+ *iter = saved;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s:going to repopulate_shared_memory.\n",
__func__);