[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>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6dcae74..e225f8c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -156,7 +156,8 @@
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);
@@ -165,7 +166,7 @@
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);
@@ -175,7 +176,7 @@
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;
@@ -186,12 +187,20 @@
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)