struct inode *inode;
struct dentry *parent;
struct fuse_conn *fc;
+ struct fuse_inode *fi;
int ret;
inode = ACCESS_ONCE(entry->d_inode);
if (!err && !outarg.nodeid)
err = -ENOENT;
if (!err) {
- struct fuse_inode *fi = get_fuse_inode(inode);
+ fi = get_fuse_inode(inode);
if (outarg.nodeid != get_node_id(inode)) {
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
goto invalid;
attr_version);
fuse_change_entry_timeout(entry, &outarg);
} else if (inode) {
- fc = get_fuse_conn(inode);
- if (fc->readdirplus_auto) {
+ fi = get_fuse_inode(inode);
+ if (flags & LOOKUP_RCU) {
+ if (test_bit(FUSE_I_INIT_RDPLUS, &fi->state))
+ return -ECHILD;
+ } else if (test_and_clear_bit(FUSE_I_INIT_RDPLUS, &fi->state)) {
parent = dget_parent(entry);
fuse_advise_use_readdirplus(parent->d_inode);
dput(parent);
invalid:
ret = 0;
- if (check_submounts_and_drop(entry) != 0)
+
+ if (!(flags & LOOKUP_RCU) && check_submounts_and_drop(entry) != 0)
ret = 1;
goto out;
}
return err;
}
-static struct dentry *fuse_materialise_dentry(struct dentry *dentry,
- struct inode *inode)
-{
- struct dentry *newent;
-
- if (inode && S_ISDIR(inode->i_mode)) {
- struct fuse_conn *fc = get_fuse_conn(inode);
-
- mutex_lock(&fc->inst_mutex);
- newent = d_materialise_unique(dentry, inode);
- mutex_unlock(&fc->inst_mutex);
- } else {
- newent = d_materialise_unique(dentry, inode);
- }
-
- return newent;
-}
-
static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
unsigned int flags)
{
if (inode && get_node_id(inode) == FUSE_ROOT_ID)
goto out_iput;
- newent = fuse_materialise_dentry(entry, inode);
+ newent = d_materialise_unique(entry, inode);
err = PTR_ERR(newent);
if (IS_ERR(newent))
goto out_err;
}
kfree(forget);
- if (S_ISDIR(inode->i_mode)) {
- struct dentry *alias;
- mutex_lock(&fc->inst_mutex);
- alias = d_find_alias(inode);
- if (alias) {
- /* New directory must have moved since mkdir */
- mutex_unlock(&fc->inst_mutex);
- dput(alias);
- iput(inode);
- return -EBUSY;
- }
- d_instantiate(entry, inode);
- mutex_unlock(&fc->inst_mutex);
- } else
- d_instantiate(entry, inode);
+ err = d_instantiate_no_diralias(entry, inode);
+ if (err) {
+ iput(inode);
+ return err;
+ }
fuse_change_entry_timeout(entry, &outarg);
fuse_invalidate_attr(dir);
struct fuse_access_in inarg;
int err;
+ BUG_ON(mask & MAY_NOT_BLOCK);
+
if (fc->no_access)
return 0;
noticed immediately, only after the attribute
timeout has expired */
} else if (mask & (MAY_ACCESS | MAY_CHDIR)) {
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
err = fuse_access(inode, mask);
} else if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) {
if (!(inode->i_mode & S_IXUGO)) {
if (!inode)
goto out;
- alias = fuse_materialise_dentry(dentry, inode);
+ alias = d_materialise_unique(dentry, inode);
err = PTR_ERR(alias);
if (IS_ERR(alias))
goto out;
}
found:
+ if (fc->readdirplus_auto)
+ set_bit(FUSE_I_INIT_RDPLUS, &get_fuse_inode(inode)->state);
fuse_change_entry_timeout(dentry, o);
err = 0;
* FUSE_NOWRITE, otherwise fuse_launder_page() would deadlock.
*/
if (S_ISREG(inode->i_mode) && oldsize != outarg.attr.size) {
- truncate_pagecache(inode, oldsize, outarg.attr.size);
+ truncate_pagecache(inode, outarg.attr.size);
invalidate_inode_pages2(inode->i_mapping);
}