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googlefs: make the close/free hooks more robust

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This commit is contained in:
François Revol 2015-11-08 04:45:58 +01:00
parent 2e04b3a2b9
commit 3d58615e3a
1 changed files with 33 additions and 2 deletions
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35
src/add-ons/kernel/file_systems/googlefs/googlefs.c
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@ -392,13 +392,15 @@ int googlefs_closedir(fs_volume *_volume, fs_vnode *_node, fs_dir_cookie *cookie
fs_nspace *ns = (fs_nspace *)_volume->private_volume;
fs_node *node = (fs_node *)_node->private_node;
status_t err = B_OK;
TRACE((PFS "closedir(%ld, %Ld)\n", ns->nsid, node->vnid));
// node = cookie->node; // work around VFS bug
TRACE((PFS "closedir(%ld, %Ld, %p)\n", ns->nsid, node->vnid, cookie));
err = LOCK(&node->l);
if (err)
return err;
SLL_REMOVE(node->opened, next, cookie);
UNLOCK(&node->l);
return err;
}
@ -470,7 +472,14 @@ int googlefs_free_dircookie(fs_volume *_volume, fs_vnode *_node, fs_dir_cookie *
{
fs_nspace *ns = (fs_nspace *)_volume->private_volume;
fs_node *node = (fs_node *)_node->private_node;
TRACE((PFS"freedircookie(%ld, %Ld)\n", ns->nsid, node?node->vnid:0LL));
status_t err = B_OK;
// node = cookie->node; // work around VFS bug
TRACE((PFS"freedircookie(%ld, %Ld, %p)\n", ns->nsid, node?node->vnid:0LL, cookie));
err = LOCK(&node->l);
if (err)
return err;
err = SLL_REMOVE(node->opened, next, cookie); /* just to make sure */
UNLOCK(&node->l);
free(cookie);
return B_OK;
}
@ -1017,7 +1026,13 @@ int googlefs_free_attrdircookie(fs_volume *_volume, fs_vnode *_node, fs_attr_dir
{
fs_nspace *ns = (fs_nspace *)_volume->private_volume;
fs_node *node = (fs_node *)_node->private_node;
status_t err = B_OK;
TRACE((PFS"free_attrdircookie(%ld, %Ld)\n", ns->nsid, node->vnid));
err = LOCK(&node->l);
if (err)
return err;
SLL_REMOVE(node->opened, next, cookie); /* just to make sure */
UNLOCK(&node->l);
free(cookie);
return B_OK;
}
@ -1419,7 +1434,23 @@ int googlefs_close_query(fs_volume *_volume, fs_query_cookie *cookie)
/* protos are different... */
int googlefs_free_query_cookie(fs_volume *_volume, fs_dir_cookie *cookie)
{
status_t err = B_OK;
fs_node *q;
TRACE((PFS"free_query_cookie(%ld)\n", _volume->id));
q = cookie->node;
if (!q)
goto no_node;
err = LOCK(&q->l);
if (err)
return err;
err = SLL_REMOVE(q->opened, next, cookie); /* just to make sure */
if (q->request /*&& !q->opened*/) {
err = google_request_close(q->request);
}
// if (err)
// goto err_n_l;
UNLOCK(&q->l);
no_node:
free(cookie);
return B_OK;
}