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Code Issues Releases Wiki Activity

sk-unix: unix_process_name -- Defer lookup until required

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Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov
2015-07-29 18:17:52 +03:00
committed by Pavel Emelyanov
parent bb9f7cffa9
commit 48dbef3ecc
1 changed files with 11 additions and 10 deletions
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21
sk-unix.c
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@@ -472,17 +472,8 @@ const struct fdtype_ops unix_dump_ops = {
*/
static int unix_process_name(struct unix_sk_desc *d, const struct unix_diag_msg *m, struct rtattr **tb)
{
int len, mntns_root;
struct ns_id *ns;
char *name;
ns = lookup_ns_by_id(root_item->ids->mnt_ns_id, &mnt_ns_desc);
if (!ns)
return -ENOENT;
mntns_root = mntns_get_root_fd(ns);
if (mntns_root < 0)
return -ENOENT;
int len;
len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
name = xmalloc(len + 1);
@@ -496,13 +487,23 @@ static int unix_process_name(struct unix_sk_desc *d, const struct unix_diag_msg
struct unix_diag_vfs *uv;
bool drop_path = false;
char rpath[PATH_MAX];
struct ns_id *ns;
struct stat st;
int mntns_root;
if (!tb[UNIX_DIAG_VFS]) {
pr_err("Bound socket w/o inode %#x\n", m->udiag_ino);
goto skip;
}
ns = lookup_ns_by_id(root_item->ids->mnt_ns_id, &mnt_ns_desc);
if (!ns)
return -ENOENT;
mntns_root = mntns_get_root_fd(ns);
if (mntns_root < 0)
return -ENOENT;
uv = RTA_DATA(tb[UNIX_DIAG_VFS]);
if (name[0] != '/') {
/*