diff --git a/[refs] b/[refs] index 19352456b92d..1604486e745e 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: c9c6cac0c2bdbda42e7b804838648d0bc60ddb13 +refs/heads/master: 52094c8a0610cf57920ad4c6c57470ae2ccbbd25 diff --git a/trunk/fs/namei.c b/trunk/fs/namei.c index 1d6bc8151553..8c704465f6ce 100644 --- a/trunk/fs/namei.c +++ b/trunk/fs/namei.c @@ -1322,6 +1322,18 @@ static int do_lookup(struct nameidata *nd, struct qstr *name, return PTR_ERR(dentry); } +static inline int may_lookup(struct nameidata *nd) +{ + if (nd->flags & LOOKUP_RCU) { + int err = exec_permission(nd->inode, IPERM_FLAG_RCU); + if (err != -ECHILD) + return err; + if (nameidata_drop_rcu(nd)) + return -ECHILD; + } + return exec_permission(nd->inode, 0); +} + /* * Name resolution. * This is the basic name resolution function, turning a pathname into @@ -1352,17 +1364,8 @@ static int link_path_walk(const char *name, struct nameidata *nd) unsigned int c; nd->flags |= LOOKUP_CONTINUE; - if (nd->flags & LOOKUP_RCU) { - err = exec_permission(nd->inode, IPERM_FLAG_RCU); - if (err == -ECHILD) { - if (nameidata_drop_rcu(nd)) - return -ECHILD; - goto exec_again; - } - } else { -exec_again: - err = exec_permission(nd->inode, 0); - } + + err = may_lookup(nd); if (err) break;