Add proper per-file copyright notices/licenses and top-level license.

[bluesky.git] / nfs3 / nfs3.c

diff --git a/nfs3/nfs3.c b/nfs3/nfs3.c
index ec5c736..80fb432 100644 (file)
--- a/nfs3/nfs3.c
+++ b/nfs3/nfs3.c
@@ -1,3 +1,33 @@
+/* Blue Sky: File Systems in the Cloud
+ *
+ * Copyright (C) 2009  The Regents of the University of California
+ * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
 /*
  * This is sample code generated by rpcgen.
  * These are only templates and you can use them
@@ -208,6 +238,8 @@ void nfsproc3_setattr_3_svc(setattr3args *argp, RPCRequest *req)
                   inode);
     result.status = NFS3_OK;
 
+    bluesky_inode_do_sync(inode);
+
     g_mutex_unlock(inode->lock);
     async_rpc_send_reply(req, &result);
 }
@@ -426,7 +458,14 @@ void nfsproc3_write_3_svc(write3args *argp, RPCRequest *req)
     encode_fattr3(&wcc.after.post_op_attr_u.attributes, inode);
     result.write3res_u.resok.file_wcc = wcc;
     result.write3res_u.resok.count = argp->count;
-    result.write3res_u.resok.committed = FILE_SYNC;
+    result.write3res_u.resok.committed = UNSTABLE;
+    memcpy(result.write3res_u.resok.verf,
+           nfsd_instance_verf_cookie, NFS3_WRITEVERFSIZE);
+
+    if (argp->stable != UNSTABLE) {
+        bluesky_inode_do_sync(inode);
+        result.write3res_u.resok.committed = FILE_SYNC;
+    }
 
     g_mutex_unlock(inode->lock);
 
@@ -470,21 +509,23 @@ void nfsproc3_create_3_svc(create3args *argp, RPCRequest *req)
         return;
     }
 
+    g_mutex_lock(fs->lock);
     BlueSkyInode *file;
     file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_REGULAR);
     file->nlink = 1;
     file->mode = 0755;
     int64_t time = bluesky_get_current_time();
-    printf("time: %"PRIi64"\n", time);
     file->mtime = time;
     file->ctime = time;
     file->atime = time;
     file->ntime = time;
     g_mutex_lock(file->lock);
     bluesky_insert_inode(fs, file);
+    g_mutex_unlock(fs->lock);
     bluesky_directory_insert(dir, argp->where.name, file->inum);
 
     bluesky_inode_update_ctime(dir, TRUE);
+    bluesky_inode_update_ctime(file, FALSE);
 
     wcc.after.present = TRUE;
     encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
@@ -498,6 +539,8 @@ void nfsproc3_create_3_svc(create3args *argp, RPCRequest *req)
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
 
+    bluesky_inode_do_sync(file);
+    bluesky_inode_do_sync(dir);
     g_mutex_unlock(file->lock);
     g_mutex_unlock(dir->lock);
 
@@ -541,6 +584,7 @@ void nfsproc3_mkdir_3_svc(mkdir3args *argp, RPCRequest *req)
         return;
     }
 
+    g_mutex_lock(fs->lock);
     BlueSkyInode *file;
     file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_DIRECTORY);
     file->nlink = 1;
@@ -552,10 +596,12 @@ void nfsproc3_mkdir_3_svc(mkdir3args *argp, RPCRequest *req)
     file->ntime = time;
     g_mutex_lock(file->lock);
     bluesky_insert_inode(fs, file);
+    g_mutex_unlock(fs->lock);
     bluesky_directory_insert(dir, argp->where.name, file->inum);
     set_attributes(file, &argp->attributes);
 
     bluesky_inode_update_ctime(dir, TRUE);
+    bluesky_inode_update_ctime(file, FALSE);
 
     wcc.after.present = TRUE;
     encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
@@ -569,6 +615,8 @@ void nfsproc3_mkdir_3_svc(mkdir3args *argp, RPCRequest *req)
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
 
+    bluesky_inode_do_sync(file);
+    bluesky_inode_do_sync(dir);
     g_mutex_unlock(file->lock);
     g_mutex_unlock(dir->lock);
     async_rpc_send_reply(req, &result);
@@ -610,6 +658,7 @@ void nfsproc3_symlink_3_svc(symlink3args *argp, RPCRequest *req)
         return;
     }
 
+    g_mutex_lock(fs->lock);
     BlueSkyInode *file;
     file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_SYMLINK);
     file->nlink = 1;
@@ -622,9 +671,11 @@ void nfsproc3_symlink_3_svc(symlink3args *argp, RPCRequest *req)
     file->symlink_contents = g_strdup(argp->symlink.symlink_data);
     g_mutex_lock(file->lock);
     bluesky_insert_inode(fs, file);
+    g_mutex_unlock(fs->lock);
     bluesky_directory_insert(dir, argp->where.name, file->inum);
 
     bluesky_inode_update_ctime(dir, TRUE);
+    bluesky_inode_update_ctime(file, FALSE);
 
     wcc.after.present = TRUE;
     encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
@@ -638,6 +689,8 @@ void nfsproc3_symlink_3_svc(symlink3args *argp, RPCRequest *req)
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
     result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
 
+    bluesky_inode_do_sync(file);
+    bluesky_inode_do_sync(dir);
     g_mutex_unlock(file->lock);
     g_mutex_unlock(dir->lock);
     async_rpc_send_reply(req, &result);
@@ -688,6 +741,7 @@ void nfsproc3_remove_3_svc(diropargs3 *argp, RPCRequest *req)
     encode_fattr3(&result.wccstat3_u.wcc.after.post_op_attr_u.attributes,
                   dir);
 
+    bluesky_inode_do_sync(dir);
     g_mutex_unlock(dir->lock);
     async_rpc_send_reply(req, &result);
 }
@@ -755,6 +809,8 @@ void nfsproc3_rmdir_3_svc(diropargs3 *argp, RPCRequest *req)
     encode_fattr3(&result.wccstat3_u.wcc.after.post_op_attr_u.attributes,
                   dir);
 
+    bluesky_inode_do_sync(dir);
+    bluesky_inode_do_sync(inode);
     g_mutex_unlock(inode->lock);
     g_mutex_unlock(dir->lock);
     async_rpc_send_reply(req, &result);
@@ -804,6 +860,9 @@ void nfsproc3_rename_3_svc(rename3args *argp, RPCRequest *req)
     else
         result.status = NFS3ERR_PERM;
 
+    bluesky_inode_do_sync(dir2);
+    bluesky_inode_do_sync(dir1);
+
     g_mutex_unlock(dir1->lock);
     if (dir1->inum != dir2->inum)
         g_mutex_unlock(dir2->lock);
@@ -878,6 +937,8 @@ void nfsproc3_link_3_svc(link3args *argp, RPCRequest *req)
     encode_fattr3(&result.link3res_u.res.file_attributes.post_op_attr_u.attributes, inode);
     result.link3res_u.res.linkdir_wcc = wcc;
 
+    bluesky_inode_do_sync(inode);
+    bluesky_inode_do_sync(dir);
     g_mutex_unlock(inode->lock);
     g_mutex_unlock(dir->lock);
     async_rpc_send_reply(req, &result);
@@ -981,9 +1042,7 @@ void nfsproc3_readdirplus_3_svc(readdirplus3args *argp, RPCRequest *req)
            && dircount + attrcount <= argp->maxcount)
     {
         BlueSkyDirent *d = g_sequence_get(i);
-        BlueSkyInode *inode = bluesky_get_inode(fs, d->inum);
-        if (inode != NULL)
-            bluesky_inode_unref(inode);
+        bluesky_inode_prefetch(fs, d->inum);
         dircount += 24 + ((strlen(d->name) + 3) & ~3);
         attrcount += 88 + 8 + 8;
         i = g_sequence_iter_next(i);
@@ -996,8 +1055,8 @@ void nfsproc3_readdirplus_3_svc(readdirplus3args *argp, RPCRequest *req)
     while (count < MAX_READDIR_DIRENTS && !g_sequence_iter_is_end(i)) {
         BlueSkyDirent *d = g_sequence_get(i);
         BlueSkyInode *inode = bluesky_get_inode(fs, d->inum);
-        g_mutex_lock(inode->lock);
         if (inode != NULL) {
+            g_mutex_lock(inode->lock);
             dircount += 24 + ((strlen(d->name) + 3) & ~3);
             attrcount += 88 + 8 + 8;
             if (dircount > argp->dircount
@@ -1134,10 +1193,12 @@ void nfsproc3_commit_3_svc(commit3args *argp, RPCRequest *req)
     g_mutex_lock(inode->lock);
     encode_pre_wcc(&result.commit3res_u.resok.file_wcc, inode);
 
-    //bluesky_inode_do_sync(inode);
+    bluesky_inode_do_sync(inode);
 
     result.commit3res_u.resok.file_wcc.after.present = TRUE;
     encode_fattr3(&result.commit3res_u.resok.file_wcc.after.post_op_attr_u.attributes, inode);
+    memcpy(result.commit3res_u.resok.verf,
+           nfsd_instance_verf_cookie, NFS3_WRITEVERFSIZE);
 
     g_mutex_unlock(inode->lock);