fs/9p: Properly update inode attributes on link

With caching enabled, we need to make sure we don't
update inode->i_size via stat2inode because we could
have dirty data which is not yet written to the server

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>

2 files changed, 4 insertions, 10 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 8e9d60345bc8..524d255a5748 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1292,8 +1292,10 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
         sprintf(name, "%d\n", oldfid->fid);
         retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
         __putname(name);
-        if (!retval)
+        if (!retval) {
+                v9fs_refresh_inode(oldfid, old_dentry->d_inode);
                 v9fs_invalidate_inode_attr(dir);
+        }
 clunk_fid:
         p9_client_clunk(oldfid);
         return retval;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 4d4c70e07081..81bb4c2a0b82 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -671,19 +671,11 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
         if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
                 /* Get the latest stat info from server. */
                 struct p9_fid *fid;
-                struct p9_stat_dotl *st;
-
                 fid = v9fs_fid_lookup(old_dentry);
                 if (IS_ERR(fid))
                         return PTR_ERR(fid);
 
-                st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
-                if (IS_ERR(st))
-                        return PTR_ERR(st);
-
-                v9fs_stat2inode_dotl(st, old_dentry->d_inode);
-
-                kfree(st);
+                v9fs_refresh_inode_dotl(fid, old_dentry->d_inode);
         }
         ihold(old_dentry->d_inode);
         d_instantiate(dentry, old_dentry->d_inode);