[PATCH] FUSE: add fsync operation for directories

This patch adds a new FSYNCDIR request, which is sent when fsync is called
on directories.  This operation is available in libfuse 2.3-pre1 or
greater.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9b43fd46aaad..73792d65b6cf 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -617,6 +617,12 @@ 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)
+{
+        /* nfsd can call this with no file */
+        return file ? fuse_fsync_common(file, de, datasync, 1) : 0;
+}
+
 static unsigned iattr_to_fattr(struct iattr *iattr, struct fuse_attr *fattr)
 {
         unsigned ivalid = iattr->ia_valid;
@@ -934,6 +940,7 @@ 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 = {