CIFS: Move async read to ops struct

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

4 files changed, 13 insertions, 2 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index e5cb1941e251..fcf81c05635f 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -172,6 +172,7 @@ struct dfs_info3_param;
 struct cifs_fattr;
 struct smb_vol;
 struct cifs_fid;
+struct cifs_readdata;
 
 struct smb_version_operations {
         int (*send_cancel)(struct TCP_Server_Info *, void *,
@@ -280,6 +281,8 @@ struct smb_version_operations {
         int (*close)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
         /* send a flush request to the server */
         int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
+        /* async read from the server */
+        int (*async_readv)(struct cifs_readdata *);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index aa1dccf0df9e..ec7c2e6bcbdf 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2488,6 +2488,9 @@ static int
 cifs_retry_async_readv(struct cifs_readdata *rdata)
 {
         int rc;
+        struct TCP_Server_Info *server;
+
+        server = tlink_tcon(rdata->cfile->tlink)->ses->server;
 
         do {
                 if (rdata->cfile->invalidHandle) {
@@ -2495,7 +2498,7 @@ cifs_retry_async_readv(struct cifs_readdata *rdata)
                         if (rc != 0)
                                 continue;
                 }
-                rc = cifs_async_readv(rdata);
+                rc = server->ops->async_readv(rdata);
         } while (rc == -EAGAIN);
 
         return rc;
@@ -2647,6 +2650,9 @@ cifs_iovec_read(struct file *file, const struct iovec *iov,
         open_file = file->private_data;
         tcon = tlink_tcon(open_file->tlink);
 
+        if (!tcon->ses->server->ops->async_readv)
+                return -ENOSYS;
+
         if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
                 pid = open_file->pid;
         else
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 7e8a2bdd69c8..e2dbd22cb136 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -785,6 +785,7 @@ struct smb_version_operations smb1_operations = {
         .set_fid = cifs_set_fid,
         .close = cifs_close_file,
         .flush = cifs_flush_file,
+        .async_readv = cifs_async_readv,
 };
 
 struct smb_version_values smb1_values = {
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index be41478acc05..eaf5466d4041 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -2455,7 +2455,8 @@ map_smb2_to_linux_error(char *buf, bool log_err)
                 return 0;
 
         /* mask facility */
-        if (log_err && (smb2err != (STATUS_MORE_PROCESSING_REQUIRED)))
+        if (log_err && (smb2err != STATUS_MORE_PROCESSING_REQUIRED) &&
+            (smb2err != STATUS_END_OF_FILE))
                 smb2_print_status(smb2err);
         else if (cifsFYI & CIFS_RC)
                 smb2_print_status(smb2err);