/*
FUSE: Filesystem in Userspace
- Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
+ Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
parent = dget_parent(entry);
fuse_lookup_init(fc, req, get_node_id(parent->d_inode),
&entry->d_name, &outarg);
- request_send(fc, req);
+ fuse_request_send(fc, req);
dput(parent);
err = req->out.h.error;
fuse_put_request(fc, req);
return 0;
}
spin_lock(&fc->lock);
- fi->nlookup ++;
+ fi->nlookup++;
spin_unlock(&fc->lock);
}
fuse_put_request(fc, forget_req);
return !nodeid || nodeid == FUSE_ROOT_ID;
}
-struct dentry_operations fuse_dentry_operations = {
+const struct dentry_operations fuse_dentry_operations = {
.d_revalidate = fuse_dentry_revalidate,
};
attr_version = fuse_get_attr_version(fc);
fuse_lookup_init(fc, req, nodeid, name, outarg);
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
/* Zero nodeid is same as -ENOENT, but with valid timeout */
}
/*
- * Synchronous release for the case when something goes wrong in CREATE_OPEN
- */
-static void fuse_sync_release(struct fuse_conn *fc, struct fuse_file *ff,
- u64 nodeid, int flags)
-{
- fuse_release_fill(ff, nodeid, flags, FUSE_RELEASE);
- ff->reserved_req->force = 1;
- request_send(fc, ff->reserved_req);
- fuse_put_request(fc, ff->reserved_req);
- kfree(ff);
-}
-
-/*
* Atomic create+open operation
*
* If the filesystem doesn't support this, then fall back to separate
struct fuse_conn *fc = get_fuse_conn(dir);
struct fuse_req *req;
struct fuse_req *forget_req;
- struct fuse_open_in inarg;
+ struct fuse_create_in inarg;
struct fuse_open_out outopen;
struct fuse_entry_out outentry;
struct fuse_file *ff;
if (fc->no_create)
return -ENOSYS;
+ if (flags & O_DIRECT)
+ return -EINVAL;
+
forget_req = fuse_get_req(fc);
if (IS_ERR(forget_req))
return PTR_ERR(forget_req);
goto out_put_forget_req;
err = -ENOMEM;
- ff = fuse_file_alloc();
+ ff = fuse_file_alloc(fc);
if (!ff)
goto out_put_request;
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
flags &= ~O_NOCTTY;
memset(&inarg, 0, sizeof(inarg));
memset(&outentry, 0, sizeof(outentry));
inarg.flags = flags;
inarg.mode = mode;
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_CREATE;
req->in.h.nodeid = get_node_id(dir);
req->in.numargs = 2;
- req->in.args[0].size = sizeof(inarg);
+ req->in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) :
+ sizeof(inarg);
req->in.args[0].value = &inarg;
req->in.args[1].size = entry->d_name.len + 1;
req->in.args[1].value = entry->d_name.name;
req->out.args[0].value = &outentry;
req->out.args[1].size = sizeof(outopen);
req->out.args[1].value = &outopen;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
if (err) {
if (err == -ENOSYS)
goto out_free_ff;
fuse_put_request(fc, req);
+ ff->fh = outopen.fh;
+ ff->nodeid = outentry.nodeid;
+ ff->open_flags = outopen.open_flags;
inode = fuse_iget(dir->i_sb, outentry.nodeid, outentry.generation,
&outentry.attr, entry_attr_timeout(&outentry), 0);
if (!inode) {
flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
- ff->fh = outopen.fh;
- fuse_sync_release(fc, ff, outentry.nodeid, flags);
+ fuse_sync_release(ff, flags);
fuse_send_forget(fc, forget_req, outentry.nodeid, 1);
return -ENOMEM;
}
fuse_invalidate_attr(dir);
file = lookup_instantiate_filp(nd, entry, generic_file_open);
if (IS_ERR(file)) {
- ff->fh = outopen.fh;
- fuse_sync_release(fc, ff, outentry.nodeid, flags);
+ fuse_sync_release(ff, flags);
return PTR_ERR(file);
}
- fuse_finish_open(inode, file, ff, &outopen);
+ file->private_data = fuse_file_get(ff);
+ fuse_finish_open(inode, file);
return 0;
out_free_ff:
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err)
if (IS_ERR(req))
return PTR_ERR(req);
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
inarg.rdev = new_encode_dev(rdev);
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_MKNOD;
req->in.numargs = 2;
- req->in.args[0].size = sizeof(inarg);
+ req->in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE :
+ sizeof(inarg);
req->in.args[0].value = &inarg;
req->in.args[1].size = entry->d_name.len + 1;
req->in.args[1].value = entry->d_name.name;
if (IS_ERR(req))
return PTR_ERR(req);
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_MKDIR;
req->in.numargs = 2;
req->in.args[0].size = sizeof(inarg);
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
struct inode *inode = entry->d_inode;
- /* Set nlink to zero so the inode can be cleared, if
- the inode does have more links this will be
- discovered at the next lookup/getattr */
+ /*
+ * Set nlink to zero so the inode can be cleared, if the inode
+ * does have more links this will be discovered at the next
+ * lookup/getattr.
+ */
clear_nlink(inode);
fuse_invalidate_attr(inode);
fuse_invalidate_attr(dir);
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
req->in.args[1].value = oldent->d_name.name;
req->in.args[2].size = newent->d_name.len + 1;
req->in.args[2].value = newent->d_name.name;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
fuse_invalidate_attr(newdir);
/* newent will end up negative */
- if (newent->d_inode)
+ if (newent->d_inode) {
+ fuse_invalidate_attr(newent->d_inode);
fuse_invalidate_entry_cache(newent);
+ }
} else if (err == -EINTR) {
/* If request was interrupted, DEITY only knows if the
rename actually took place. If the invalidation
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
return err;
}
+int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
+ struct qstr *name)
+{
+ int err = -ENOTDIR;
+ struct inode *parent;
+ struct dentry *dir;
+ struct dentry *entry;
+
+ parent = ilookup5(sb, parent_nodeid, fuse_inode_eq, &parent_nodeid);
+ if (!parent)
+ return -ENOENT;
+
+ mutex_lock(&parent->i_mutex);
+ if (!S_ISDIR(parent->i_mode))
+ goto unlock;
+
+ err = -ENOENT;
+ dir = d_find_alias(parent);
+ if (!dir)
+ goto unlock;
+
+ entry = d_lookup(dir, name);
+ dput(dir);
+ if (!entry)
+ goto unlock;
+
+ fuse_invalidate_attr(parent);
+ fuse_invalidate_entry(entry);
+ dput(entry);
+ err = 0;
+
+ unlock:
+ mutex_unlock(&parent->i_mutex);
+ iput(parent);
+ return err;
+}
+
/*
* Calling into a user-controlled filesystem gives the filesystem
* daemon ptrace-like capabilities over the requester process. This
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
fuse_put_request(fc, req);
return -ENOMEM;
}
+ req->out.argpages = 1;
req->num_pages = 1;
req->pages[0] = page;
- fuse_read_fill(req, file, inode, file->f_pos, PAGE_SIZE, FUSE_READDIR);
- request_send(fc, req);
+ fuse_read_fill(req, file, file->f_pos, PAGE_SIZE, FUSE_READDIR);
+ fuse_request_send(fc, req);
nbytes = req->out.args[0].size;
err = req->out.h.error;
fuse_put_request(fc, req);
req->out.numargs = 1;
req->out.args[0].size = PAGE_SIZE - 1;
req->out.args[0].value = link;
- request_send(fc, req);
+ fuse_request_send(fc, req);
if (req->out.h.error) {
free_page((unsigned long) link);
link = ERR_PTR(req->out.h.error);
static int fuse_dir_open(struct inode *inode, struct file *file)
{
- return fuse_open_common(inode, file, 1);
+ return fuse_open_common(inode, file, true);
}
static int fuse_dir_release(struct inode *inode, struct file *file)
{
- return fuse_release_common(inode, file, 1);
+ fuse_release_common(file, FUSE_RELEASEDIR);
+
+ return 0;
}
-static int fuse_dir_fsync(struct file *file, struct dentry *de, int datasync)
+static int fuse_dir_fsync(struct file *file, int datasync)
{
- /* nfsd can call this with no file */
- return file ? fuse_fsync_common(file, de, datasync, 1) : 0;
+ return fuse_fsync_common(file, datasync, 1);
}
static bool update_mtime(unsigned ivalid)
return 0;
if (attr->ia_valid & ATTR_SIZE) {
- unsigned long limit;
- if (IS_SWAPFILE(inode))
- return -ETXTBSY;
- limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
- if (limit != RLIM_INFINITY && attr->ia_size > (loff_t) limit) {
- send_sig(SIGXFSZ, current, 0);
- return -EFBIG;
- }
+ err = inode_newsize_ok(inode, attr->ia_size);
+ if (err)
+ return err;
is_truncate = true;
}
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err) {
* FUSE_NOWRITE, otherwise fuse_launder_page() would deadlock.
*/
if (S_ISREG(inode->i_mode) && oldsize != outarg.attr.size) {
- if (outarg.attr.size < oldsize)
- fuse_truncate(inode->i_mapping, outarg.attr.size);
+ truncate_pagecache(inode, oldsize, outarg.attr.size);
invalidate_inode_pages2(inode->i_mapping);
}
req->in.args[1].value = name;
req->in.args[2].size = size;
req->in.args[2].value = value;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
}
- request_send(fc, req);
+ fuse_request_send(fc, req);
ret = req->out.h.error;
if (!ret)
ret = size ? req->out.args[0].size : outarg.size;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
}
- request_send(fc, req);
+ fuse_request_send(fc, req);
ret = req->out.h.error;
if (!ret)
ret = size ? req->out.args[0].size : outarg.size;
req->in.numargs = 1;
req->in.args[0].size = strlen(name) + 1;
req->in.args[0].value = name;
- request_send(fc, req);
+ fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff