gfapi: Use inode_forget in case of unlink/rename objects

After unlink/rename, the nonexistent inode should be remove from inode table,
that's better than put to lru list.

Change-Id: I5a40df188f3f42a2c864cfb4404b22b288fdcc12
fixes: bz#1612750
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>

3 files changed, 21 insertions, 3 deletions

diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c
index 870b287c2a7..cb6dffc9335 100644
--- a/api/src/glfs-fops.c
+++ b/api/src/glfs-fops.c
@@ -214,6 +214,11 @@ glfs_loc_unlink (loc_t *loc)
 {
 	inode_unlink (loc->inode, loc->parent, loc->name);
 
+	/* since glfs_h_* objects hold a reference to inode
+	 * it is safe to keep lookup count to '0' */
+	if (!inode_has_dentry (loc->inode))
+		inode_forget (loc->inode, 0);
+
 	return 0;
 }
 
@@ -2713,10 +2718,14 @@ retrynew:
 		}
 	}
 
-	if (ret == 0)
+	if (ret == 0) {
 		inode_rename (oldloc.parent->table, oldloc.parent, oldloc.name,
 			      newloc.parent, newloc.name, oldloc.inode,
 			      &oldiatt);
+
+		if (newloc.inode && !inode_has_dentry (newloc.inode))
+			inode_forget (newloc.inode, 0);
+	}
 out:
 	loc_wipe (&oldloc);
 	loc_wipe (&newloc);
diff --git a/api/src/glfs-handleops.c b/api/src/glfs-handleops.c
index e40adf04d3d..343fc384ddf 100644
--- a/api/src/glfs-handleops.c
+++ b/api/src/glfs-handleops.c
@@ -1794,11 +1794,16 @@ pub_glfs_h_rename (struct glfs *fs, struct glfs_object *olddir,
         ret = syncop_rename (subvol, &oldloc, &newloc, NULL, NULL);
         DECODE_SYNCOP_ERR (ret);
 
-        if (ret == 0)
+        if (ret == 0) {
                 inode_rename (oldloc.parent->table, oldloc.parent, oldloc.name,
                               newloc.parent, newloc.name, oldloc.inode,
                               &oldiatt);
 
+                if (newloc.inode && !inode_has_dentry (newloc.inode))
+                        inode_forget (newloc.inode, 0);
+
+        }
+
 out:
         loc_wipe (&oldloc);
         loc_wipe (&newloc);
diff --git a/api/src/glfs-resolve.c b/api/src/glfs-resolve.c
index 88e2d8926a0..0c4b9651bd4 100644
--- a/api/src/glfs-resolve.c
+++ b/api/src/glfs-resolve.c
@@ -397,9 +397,13 @@ glfs_resolve_component (struct glfs *fs, xlator_t *subvol, inode_t *parent,
                  * A stale mapping might exist for a dentry/inode that has been
                  * removed from another client.
                  */
-                if (-ret == ENOENT)
+                if (-ret == ENOENT) {
                         inode_unlink(loc.inode, loc.parent,
                                      loc.name);
+                        if (!inode_has_dentry (loc.inode))
+                                inode_forget (loc.inode, 0);
+                }
+
 		inode_unref (loc.inode);
 	        gf_uuid_clear (loc.gfid);
 		loc.inode = inode_new (parent->table);