Signed-off-by: Pavel Shilovsky <pshilovsky@xxxxxxxxx>
---
fs/cifs/cifsglob.h | 2 ++
fs/cifs/file.c | 20 ++++++++++++++++----
fs/cifs/smb1ops.c | 8 ++++++++
3 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 0467e38..3d94397 100644
--- 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 e8cca00..3f2cfb3 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2055,6 +2055,7 @@ 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);
@@ -2078,8 +2079,13 @@ 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);
@@ -2091,6 +2097,7 @@ 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;
@@ -2106,8 +2113,13 @@ 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
--- 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 = {
--
1.7.1
--
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