net/9p: Implement syncfs 9P operation

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index eaa45f932970be1084512e464db44bfecb25ec78..6b75a6971346a0495fca172e83edce6861a42f12 100644 (file)
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -139,6 +139,8 @@ do { \
  */
 
 enum p9_msg_t {
+       P9_TSYNCFS = 0,
+       P9_RSYNCFS,
        P9_TLERROR = 6,
        P9_RLERROR,
        P9_TSTATFS = 8,

diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 83ba6a4d58a3843f0e342747cc7c7eeedac134ba..0a30977e3c1fe01aa6c7d7e8c969b39d82f61f47 100644 (file)
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -230,6 +230,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
                gid_t gid, struct p9_qid *qid);
 int p9_client_clunk(struct p9_fid *fid);
 int p9_client_fsync(struct p9_fid *fid, int datasync);
+int p9_client_sync_fs(struct p9_fid *fid);
 int p9_client_remove(struct p9_fid *fid);
 int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
                                                        u64 offset, u32 count);

diff --git a/net/9p/client.c b/net/9p/client.c
index 43ec78af4547c0af9306bc21f4a62a1c6bcb0037..347ec0cd2718696b1c84136ca1c21aa27fa94d21 100644 (file)
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1220,6 +1220,27 @@ error:
 }
 EXPORT_SYMBOL(p9_client_fsync);
 
+int p9_client_sync_fs(struct p9_fid *fid)
+{
+       int err = 0;
+       struct p9_req_t *req;
+       struct p9_client *clnt;
+
+       P9_DPRINTK(P9_DEBUG_9P, ">>> TSYNC_FS fid %d\n", fid->fid);
+
+       clnt = fid->clnt;
+       req = p9_client_rpc(clnt, P9_TSYNCFS, "d", fid->fid);
+       if (IS_ERR(req)) {
+               err = PTR_ERR(req);
+               goto error;
+       }
+       P9_DPRINTK(P9_DEBUG_9P, "<<< RSYNCFS fid %d\n", fid->fid);
+       p9_free_req(clnt, req);
+error:
+       return err;
+}
+EXPORT_SYMBOL(p9_client_sync_fs);
+
 int p9_client_clunk(struct p9_fid *fid)
 {
        int err;