fix

7 files changed, 65 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 4aa92de..9ffdbda 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-03-21  Miklos Szeredi <miklos@szeredi.hu>
+
+	* Add fsyncdir() operation
+
 2005-03-19  Miklos Szeredi <miklos@szeredi.hu>
 
 	* kernel: add locking to background list (fixes previous fix)
diff --git a/include/fuse.h b/include/fuse.h
index df6149f..5e5cd45 100644
--- a/include/fuse.h
+++ b/include/fuse.h
@@ -250,6 +250,14 @@ struct fuse_operations {
      */
     int (*opendir) (const char *, struct fuse_file_info *);
 
+    /** Synchronize directory contents
+     *
+     * If the datasync parameter is non-zero, then only the user data
+     * should be flushed, not the meta data.  The fuse_file_info
+     * parameter is currently unused
+     */
+    int (*fsyncdir) (const char *, int, struct fuse_file_info *);
+
     /**
      * Initialize filesystem
      *
diff --git a/kernel/dir.c b/kernel/dir.c
index be51309..a7507fe 100644
--- a/kernel/dir.c
+++ b/kernel/dir.c
@@ -645,6 +645,11 @@ static int fuse_dir_release(struct inode *inode, struct file *file)
 	return fuse_release_common(inode, file, 1);
 }
 
+static int fuse_dir_fsync(struct file *file, struct dentry *de, int datasync)
+{
+	return fuse_fsync_common(file, de, datasync, 1);
+}
+
 static unsigned iattr_to_fattr(struct iattr *iattr, struct fuse_attr *fattr)
 {
 	unsigned ivalid = iattr->ia_valid;
@@ -1021,6 +1026,7 @@ static struct file_operations fuse_dir_operations = {
 	.readdir	= fuse_readdir,
 	.open		= fuse_dir_open,
 	.release	= fuse_dir_release,
+	.fsync		= fuse_dir_fsync,
 };
 
 static struct inode_operations fuse_common_inode_operations = {
diff --git a/kernel/file.c b/kernel/file.c
index 74921d6..0865ab0 100644
--- a/kernel/file.c
+++ b/kernel/file.c
@@ -151,7 +151,8 @@ static int fuse_flush(struct file *file)
 	return err;
 }
 
-static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
+int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
+		      int isdir)
 {
 	struct inode *inode = de->d_inode;
 	struct fuse_conn *fc = get_fuse_conn(inode);
@@ -160,7 +161,7 @@ static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
 	struct fuse_fsync_in inarg;
 	int err;
 
-	if (fc->no_fsync)
+	if ((!isdir && fc->no_fsync) || (isdir && fc->no_fsyncdir))
 		return 0;
 
 	req = fuse_get_request(fc);
@@ -170,7 +171,7 @@ static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
 	memset(&inarg, 0, sizeof(inarg));
 	inarg.fh = ff->fh;
 	inarg.fsync_flags = datasync ? 1 : 0;
-	req->in.h.opcode = FUSE_FSYNC;
+	req->in.h.opcode = isdir ? FUSE_FSYNCDIR : FUSE_FSYNC;
 	req->in.h.nodeid = get_node_id(inode);
 	req->inode = inode;
 	req->file = file;
@@ -181,12 +182,20 @@ static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
 	err = req->out.h.error;
 	fuse_put_request(fc, req);
 	if (err == -ENOSYS) {
-		fc->no_fsync = 1;
+		if (isdir)
+			fc->no_fsyncdir = 1;
+		else
+			fc->no_fsync = 1;
 		err = 0;
 	}
 	return err;
 }
 
+static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
+{
+	return fuse_fsync_common(file, de, datasync, 0);
+}
+
 size_t fuse_send_read_common(struct fuse_req *req, struct file *file,
 			     struct inode *inode, loff_t pos, size_t count,
 			     int isdir)
diff --git a/kernel/fuse_i.h b/kernel/fuse_i.h
index d877071..fb94ebb 100644
--- a/kernel/fuse_i.h
+++ b/kernel/fuse_i.h
@@ -310,6 +310,9 @@ struct fuse_conn {
 	/** Is fsync not implemented by fs? */
 	unsigned no_fsync : 1;
 
+	/** Is fsyncdir not implemented by fs? */
+	unsigned no_fsyncdir : 1;
+
 	/** Is flush not implemented by fs? */
 	unsigned no_flush : 1;
 
@@ -407,6 +410,12 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir);
  */
 int fuse_release_common(struct inode *inode, struct file *file, int isdir);
 
+/** 
+ * Send FSYNC or FSYNCDIR request
+ */
+int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
+		      int isdir);
+
 /**
  * Initialise file operations on a regular file
  */
diff --git a/kernel/fuse_kernel.h b/kernel/fuse_kernel.h
index 870ce59..2f313eb 100644
--- a/kernel/fuse_kernel.h
+++ b/kernel/fuse_kernel.h
@@ -87,7 +87,8 @@ enum fuse_opcode {
 	FUSE_INIT          = 26,
 	FUSE_OPENDIR       = 27,
 	FUSE_READDIR       = 28,
-	FUSE_RELEASEDIR    = 29
+	FUSE_RELEASEDIR    = 29,
+	FUSE_FSYNCDIR      = 30
 };
 
 /* Conservative buffer size for the client */
diff --git a/lib/fuse.c b/lib/fuse.c
index b1aab25..9694239 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -103,6 +103,7 @@ static const char *opname(enum fuse_opcode opcode)
     case FUSE_OPENDIR:		return "OPENDIR";
     case FUSE_READDIR:		return "READDIR";
     case FUSE_RELEASEDIR:	return "RELEASEDIR";
+    case FUSE_FSYNCDIR:		return "FSYNCDIR";
     default: 			return "???";
     }
 }
@@ -1598,6 +1599,24 @@ static void do_releasedir(struct fuse *f, struct fuse_in_header *in,
     send_reply(f, in, 0, NULL, 0);
 }
 
+static void do_fsyncdir(struct fuse *f, struct fuse_in_header *in,
+                        struct fuse_fsync_in *inarg)
+{
+    int res;
+    char *path;
+    struct fuse_file_info fi;
+
+    memset(&fi, 0, sizeof(fi));
+    res = -ENOENT;
+    path = get_path(f, in->nodeid);
+    if (path != NULL) {
+        res = -ENOSYS;
+        if (f->op.fsyncdir)
+            res = f->op.fsyncdir(path, inarg->fsync_flags & 1, &fi);
+        free(path);
+    }
+    send_reply(f, in, res, NULL, 0);
+}
 
 static void free_cmd(struct fuse_cmd *cmd)
 {
@@ -1741,6 +1760,10 @@ void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd)
         do_releasedir(f, in, (struct fuse_release_in *) inarg);
         break;
 
+    case FUSE_FSYNCDIR:
+        do_fsyncdir(f, in, (struct fuse_fsync_in *) inarg);
+        break;
+
     default:
         send_reply(f, in, -ENOSYS, NULL, 0);
     }