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Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r--fs/fuse/dir.c84
1 files changed, 24 insertions, 60 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 65da6e1b6de5..cf5d1faed7af 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -519,70 +519,40 @@ static int parse_dirfile(char *buf, size_t nbytes, struct file *file,
return 0;
}
-static int fuse_checkdir(struct file *cfile, struct file *file)
+static inline size_t fuse_send_readdir(struct fuse_req *req, struct file *file,
+ struct inode *inode, loff_t pos,
+ size_t count)
{
- struct inode *inode;
- if (!cfile)
- return -EIO;
- inode = cfile->f_dentry->d_inode;
- if (!S_ISREG(inode->i_mode)) {
- fput(cfile);
- return -EIO;
- }
-
- file->private_data = cfile;
- return 0;
+ return fuse_send_read_common(req, file, inode, pos, count, 1);
}
-static int fuse_getdir(struct file *file)
+static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
{
+ int err;
+ size_t nbytes;
+ 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(fc);
- struct fuse_getdir_out_i outarg;
- int err;
-
+ struct fuse_req *req = fuse_get_request_nonint(fc);
if (!req)
- return -ERESTARTNOINTR;
+ return -EINTR;
- req->in.h.opcode = FUSE_GETDIR;
- req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
- req->out.numargs = 1;
- req->out.args[0].size = sizeof(struct fuse_getdir_out);
- req->out.args[0].value = &outarg;
- request_send(fc, req);
+ page = alloc_page(GFP_KERNEL);
+ if (!page) {
+ fuse_put_request(fc, req);
+ return -ENOMEM;
+ }
+ req->num_pages = 1;
+ req->pages[0] = page;
+ nbytes = fuse_send_readdir(req, file, inode, file->f_pos, PAGE_SIZE);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)
- err = fuse_checkdir(outarg.file, file);
- return err;
-}
-
-static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
-{
- struct file *cfile = file->private_data;
- char *buf;
- int ret;
-
- if (!cfile) {
- ret = fuse_getdir(file);
- if (ret)
- return ret;
-
- cfile = file->private_data;
- }
+ err = parse_dirfile(page_address(page), nbytes, file, dstbuf,
+ filldir);
- buf = (char *) __get_free_page(GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- ret = kernel_read(cfile, file->f_pos, buf, PAGE_SIZE);
- if (ret > 0)
- ret = parse_dirfile(buf, ret, file, dstbuf, filldir);
-
- free_page((unsigned long) buf);
- return ret;
+ __free_page(page);
+ return err;
}
static char *read_link(struct dentry *dentry)
@@ -637,18 +607,12 @@ static void fuse_put_link(struct dentry *dentry, struct nameidata *nd, void *c)
static int fuse_dir_open(struct inode *inode, struct file *file)
{
- file->private_data = NULL;
- return 0;
+ return fuse_open_common(inode, file, 1);
}
static int fuse_dir_release(struct inode *inode, struct file *file)
{
- struct file *cfile = file->private_data;
-
- if (cfile)
- fput(cfile);
-
- return 0;
+ return fuse_release_common(inode, file, 1);
}
static unsigned iattr_to_fattr(struct iattr *iattr, struct fuse_attr *fattr)