[PATCH] FUSE: don't allow restarting of system calls

[deliverable/linux.git] / fs / fuse / dir.c

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9b43fd46aaad551001e55008138ccd6923511dbf..e79e49b3eec7e0304a2a8763c54f0c31d48536f6 100644 (file)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -46,12 +46,12 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
                struct inode *inode = entry->d_inode;
                struct fuse_inode *fi = get_fuse_inode(inode);
                struct fuse_conn *fc = get_fuse_conn(inode);
-               struct fuse_req *req = fuse_get_request_nonint(fc);
+               struct fuse_req *req = fuse_get_request(fc);
                if (!req)
                        return 0;
 
                fuse_lookup_init(req, entry->d_parent->d_inode, entry, &outarg);
-               request_send_nonint(fc, req);
+               request_send(fc, req);
                err = req->out.h.error;
                if (!err) {
                        if (outarg.nodeid != get_node_id(inode)) {
@@ -91,7 +91,7 @@ static int fuse_lookup_iget(struct inode *dir, struct dentry *entry,
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        fuse_lookup_init(req, dir, entry, &outarg);
        request_send(fc, req);
@@ -185,7 +185,7 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
        struct fuse_conn *fc = get_fuse_conn(dir);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.mode = mode;
@@ -211,7 +211,7 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode)
        struct fuse_conn *fc = get_fuse_conn(dir);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.mode = mode;
@@ -236,7 +236,7 @@ static int fuse_symlink(struct inode *dir, struct dentry *entry,
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        req->in.h.opcode = FUSE_SYMLINK;
        req->in.numargs = 2;
@@ -253,7 +253,7 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
        struct fuse_conn *fc = get_fuse_conn(dir);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        req->in.h.opcode = FUSE_UNLINK;
        req->in.h.nodeid = get_node_id(dir);
@@ -284,7 +284,7 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
        struct fuse_conn *fc = get_fuse_conn(dir);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        req->in.h.opcode = FUSE_RMDIR;
        req->in.h.nodeid = get_node_id(dir);
@@ -311,7 +311,7 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent,
        struct fuse_conn *fc = get_fuse_conn(olddir);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.newdir = get_node_id(newdir);
@@ -356,7 +356,7 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.oldnodeid = get_node_id(inode);
@@ -386,7 +386,7 @@ int fuse_do_getattr(struct inode *inode)
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_req *req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        req->in.h.opcode = FUSE_GETATTR;
        req->in.h.nodeid = get_node_id(inode);
@@ -533,7 +533,7 @@ static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
        struct page *page;
        struct inode *inode = file->f_dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
-       struct fuse_req *req = fuse_get_request_nonint(fc);
+       struct fuse_req *req = fuse_get_request(fc);
        if (!req)
                return -EINTR;
 
@@ -564,7 +564,7 @@ static char *read_link(struct dentry *dentry)
        char *link;
 
        if (!req)
-               return ERR_PTR(-ERESTARTNOINTR);
+               return ERR_PTR(-EINTR);
 
        link = (char *) __get_free_page(GFP_KERNEL);
        if (!link) {
@@ -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;
@@ -671,7 +677,7 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.valid = iattr_to_fattr(attr, &inarg.attr);
@@ -755,7 +761,7 @@ static int fuse_setxattr(struct dentry *entry, const char *name,
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.size = size;
@@ -795,7 +801,7 @@ static ssize_t fuse_getxattr(struct dentry *entry, const char *name,
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.size = size;
@@ -845,7 +851,7 @@ static ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        memset(&inarg, 0, sizeof(inarg));
        inarg.size = size;
@@ -891,7 +897,7 @@ static int fuse_removexattr(struct dentry *entry, const char *name)
 
        req = fuse_get_request(fc);
        if (!req)
-               return -ERESTARTNOINTR;
+               return -EINTR;
 
        req->in.h.opcode = FUSE_REMOVEXATTR;
        req->in.h.nodeid = get_node_id(inode);
@@ -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 = {