CIFS: Make flush code use ops struct

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

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 500ecb9..abb8310 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -274,6 +274,8 @@ struct smb_version_operations {
        void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32);
        /* close a file */
        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 *);
 };
 
 struct smb_version_values {

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 628ee17..aa1dccf 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2062,6 +2062,7 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
        unsigned int xid;
        int rc = 0;
        struct cifs_tcon *tcon;
+       struct TCP_Server_Info *server;
        struct cifsFileInfo *smbfile = file->private_data;
        struct inode *inode = file->f_path.dentry->d_inode;
        struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
@@ -2085,8 +2086,13 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
        }
 
        tcon = tlink_tcon(smbfile->tlink);
-       if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
-               rc = CIFSSMBFlush(xid, tcon, smbfile->fid.netfid);
+       if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)) {
+               server = tcon->ses->server;
+               if (server->ops->flush)
+                       rc = server->ops->flush(xid, tcon, &smbfile->fid);
+               else
+                       rc = -ENOSYS;
+       }
 
        free_xid(xid);
        mutex_unlock(&inode->i_mutex);
@@ -2098,6 +2104,7 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
        unsigned int xid;
        int rc = 0;
        struct cifs_tcon *tcon;
+       struct TCP_Server_Info *server;
        struct cifsFileInfo *smbfile = file->private_data;
        struct cifs_sb_info *cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
        struct inode *inode = file->f_mapping->host;
@@ -2113,8 +2120,13 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
                file->f_path.dentry->d_name.name, datasync);
 
        tcon = tlink_tcon(smbfile->tlink);
-       if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
-               rc = CIFSSMBFlush(xid, tcon, smbfile->fid.netfid);
+       if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)) {
+               server = tcon->ses->server;
+               if (server->ops->flush)
+                       rc = server->ops->flush(xid, tcon, &smbfile->fid);
+               else
+                       rc = -ENOSYS;
+       }
 
        free_xid(xid);
        mutex_unlock(&inode->i_mutex);

diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index dd64754..df20dd9 100644 (file)
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -648,6 +648,13 @@ cifs_close_file(const unsigned int xid, struct cifs_tcon *tcon,
        return CIFSSMBClose(xid, tcon, fid->netfid);
 }
 
+static int
+cifs_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
+               struct cifs_fid *fid)
+{
+       return CIFSSMBFlush(xid, tcon, fid->netfid);
+}
+
 struct smb_version_operations smb1_operations = {
        .send_cancel = send_nt_cancel,
        .compare_fids = cifs_compare_fids,
@@ -691,6 +698,7 @@ struct smb_version_operations smb1_operations = {
        .open = cifs_open_file,
        .set_fid = cifs_set_fid,
        .close = cifs_close_file,
+       .flush = cifs_flush_file,
 };
 
 struct smb_version_values smb1_values = {