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 <[email protected]>
diff -rup linux-2.6.12-rc1-mm4/fs/fuse/dir.c linux-fuse/fs/fuse/dir.c
--- linux-2.6.12-rc1-mm4/fs/fuse/dir.c 2005-03-31 21:50:44.000000000 +0200
+++ linux-fuse/fs/fuse/dir.c 2005-03-31 21:51:20.000000000 +0200
@@ -591,6 +591,11 @@ static int fuse_dir_release(struct inode
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;
@@ -899,6 +904,7 @@ static struct file_operations fuse_dir_o
.readdir = fuse_readdir,
.open = fuse_dir_open,
.release = fuse_dir_release,
+ .fsync = fuse_dir_fsync,
};
static struct inode_operations fuse_common_inode_operations = {
diff -rup linux-2.6.12-rc1-mm4/fs/fuse/file.c linux-fuse/fs/fuse/file.c
--- linux-2.6.12-rc1-mm4/fs/fuse/file.c 2005-03-31 21:43:42.000000000 +0200
+++ linux-fuse/fs/fuse/file.c 2005-03-31 21:51:20.000000000 +0200
@@ -143,7 +143,8 @@ 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);
@@ -152,7 +153,7 @@ static int fuse_fsync(struct file *file,
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);
@@ -162,7 +163,7 @@ static int fuse_fsync(struct file *file,
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;
@@ -173,12 +174,20 @@ static int fuse_fsync(struct file *file,
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 -rup linux-2.6.12-rc1-mm4/fs/fuse/fuse_i.h linux-fuse/fs/fuse/fuse_i.h
--- linux-2.6.12-rc1-mm4/fs/fuse/fuse_i.h 2005-03-31 21:51:29.000000000 +0200
+++ linux-fuse/fs/fuse/fuse_i.h 2005-03-31 21:51:20.000000000 +0200
@@ -246,6 +246,9 @@ 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;
@@ -341,6 +344,12 @@ int fuse_open_common(struct inode *inode
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
*/
void fuse_init_file_inode(struct inode *inode);
diff -rup linux-2.6.12-rc1-mm4/include/linux/fuse.h linux-fuse/include/linux/fuse.h
--- linux-2.6.12-rc1-mm4/include/linux/fuse.h 2005-03-31 21:51:29.000000000 +0200
+++ linux-fuse/include/linux/fuse.h 2005-03-31 21:51:20.000000000 +0200
@@ -90,7 +90,8 @@ 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 */
-
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