AFS: write support fixes

[mv-sheeva.git] / fs / afs / vnode.c

diff --git a/fs/afs/vnode.c b/fs/afs/vnode.c
index a1904ab8426adb12fdecfcc3a353da6b909bdee1..ec814660209faf83abe40e3a9a831d445243dba3 100644 (file)
--- a/fs/afs/vnode.c
+++ b/fs/afs/vnode.c
@@ -261,7 +261,7 @@ int afs_vnode_fetch_status(struct afs_vnode *vnode,
 
        DECLARE_WAITQUEUE(myself, current);
 
-       _enter("%s,{%u,%u,%u}",
+       _enter("%s,{%x:%u.%u}",
               vnode->volume->vlocation->vldb.name,
               vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
 
@@ -389,7 +389,7 @@ int afs_vnode_fetch_data(struct afs_vnode *vnode, struct key *key,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%x,,,",
+       _enter("%s{%x:%u.%u},%x,,,",
               vnode->volume->vlocation->vldb.name,
               vnode->fid.vid,
               vnode->fid.vnode,
@@ -446,7 +446,7 @@ int afs_vnode_create(struct afs_vnode *vnode, struct key *key,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%x,%s,,",
+       _enter("%s{%x:%u.%u},%x,%s,,",
               vnode->volume->vlocation->vldb.name,
               vnode->fid.vid,
               vnode->fid.vnode,
@@ -502,7 +502,7 @@ int afs_vnode_remove(struct afs_vnode *vnode, struct key *key, const char *name,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%x,%s",
+       _enter("%s{%x:%u.%u},%x,%s",
               vnode->volume->vlocation->vldb.name,
               vnode->fid.vid,
               vnode->fid.vnode,
@@ -557,7 +557,7 @@ extern int afs_vnode_link(struct afs_vnode *dvnode, struct afs_vnode *vnode,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%s{%u,%u,%u},%x,%s",
+       _enter("%s{%x:%u.%u},%s{%x:%u.%u},%x,%s",
               dvnode->volume->vlocation->vldb.name,
               dvnode->fid.vid,
               dvnode->fid.vnode,
@@ -628,7 +628,7 @@ int afs_vnode_symlink(struct afs_vnode *vnode, struct key *key,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%x,%s,%s,,,",
+       _enter("%s{%x:%u.%u},%x,%s,%s,,,",
               vnode->volume->vlocation->vldb.name,
               vnode->fid.vid,
               vnode->fid.vnode,
@@ -687,7 +687,7 @@ int afs_vnode_rename(struct afs_vnode *orig_dvnode,
        struct afs_server *server;
        int ret;
 
-       _enter("%s{%u,%u,%u},%s{%u,%u,%u},%x,%s,%s",
+       _enter("%s{%x:%u.%u},%s{%u,%u,%u},%x,%s,%s",
               orig_dvnode->volume->vlocation->vldb.name,
               orig_dvnode->fid.vid,
               orig_dvnode->fid.vnode,
@@ -753,3 +753,110 @@ no_server:
        _leave(" = %ld [cnt %d]", PTR_ERR(server), orig_dvnode->update_cnt);
        return PTR_ERR(server);
 }
+
+/*
+ * write to a file
+ */
+int afs_vnode_store_data(struct afs_writeback *wb, pgoff_t first, pgoff_t last,
+                        unsigned offset, unsigned to)
+{
+       struct afs_server *server;
+       struct afs_vnode *vnode = wb->vnode;
+       int ret;
+
+       _enter("%s{%x:%u.%u},%x,%lx,%lx,%x,%x",
+              vnode->volume->vlocation->vldb.name,
+              vnode->fid.vid,
+              vnode->fid.vnode,
+              vnode->fid.unique,
+              key_serial(wb->key),
+              first, last, offset, to);
+
+       /* this op will fetch the status */
+       spin_lock(&vnode->lock);
+       vnode->update_cnt++;
+       spin_unlock(&vnode->lock);
+
+       do {
+               /* pick a server to query */
+               server = afs_volume_pick_fileserver(vnode);
+               if (IS_ERR(server))
+                       goto no_server;
+
+               _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+               ret = afs_fs_store_data(server, wb, first, last, offset, to,
+                                       &afs_sync_call);
+
+       } while (!afs_volume_release_fileserver(vnode, server, ret));
+
+       /* adjust the flags */
+       if (ret == 0) {
+               afs_vnode_finalise_status_update(vnode, server);
+               afs_put_server(server);
+       } else {
+               afs_vnode_status_update_failed(vnode, ret);
+       }
+
+       _leave(" = %d", ret);
+       return ret;
+
+no_server:
+       spin_lock(&vnode->lock);
+       vnode->update_cnt--;
+       ASSERTCMP(vnode->update_cnt, >=, 0);
+       spin_unlock(&vnode->lock);
+       return PTR_ERR(server);
+}
+
+/*
+ * set the attributes on a file
+ */
+int afs_vnode_setattr(struct afs_vnode *vnode, struct key *key,
+                     struct iattr *attr)
+{
+       struct afs_server *server;
+       int ret;
+
+       _enter("%s{%x:%u.%u},%x",
+              vnode->volume->vlocation->vldb.name,
+              vnode->fid.vid,
+              vnode->fid.vnode,
+              vnode->fid.unique,
+              key_serial(key));
+
+       /* this op will fetch the status */
+       spin_lock(&vnode->lock);
+       vnode->update_cnt++;
+       spin_unlock(&vnode->lock);
+
+       do {
+               /* pick a server to query */
+               server = afs_volume_pick_fileserver(vnode);
+               if (IS_ERR(server))
+                       goto no_server;
+
+               _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+               ret = afs_fs_setattr(server, key, vnode, attr, &afs_sync_call);
+
+       } while (!afs_volume_release_fileserver(vnode, server, ret));
+
+       /* adjust the flags */
+       if (ret == 0) {
+               afs_vnode_finalise_status_update(vnode, server);
+               afs_put_server(server);
+       } else {
+               afs_vnode_status_update_failed(vnode, ret);
+       }
+
+       _leave(" = %d", ret);
+       return ret;
+
+no_server:
+       spin_lock(&vnode->lock);
+       vnode->update_cnt--;
+       ASSERTCMP(vnode->update_cnt, >=, 0);
+       spin_unlock(&vnode->lock);
+       return PTR_ERR(server);
+}