diff options
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/fs/namei.c b/fs/namei.c index 8f7b41a14882..b753192d8c3f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -923,37 +923,13 @@ static int follow_automount(struct path *path, unsigned flags, if (!mnt) /* mount collision */ return 0; - /* The new mount record should have at least 2 refs to prevent it being - * expired before we get a chance to add it - */ - BUG_ON(mnt_get_count(mnt) < 2); - - if (mnt->mnt_sb == path->mnt->mnt_sb && - mnt->mnt_root == path->dentry) { - mnt_clear_expiry(mnt); - mntput(mnt); - mntput(mnt); - return -ELOOP; - } + err = finish_automount(mnt, path); - /* We need to add the mountpoint to the parent. The filesystem may - * have placed it on an expiry list, and so we need to make sure it - * won't be expired under us if do_add_mount() fails (do_add_mount() - * will eat a reference unconditionally). - */ - mntget(mnt); - err = do_add_mount(mnt, path, path->mnt->mnt_flags | MNT_SHRINKABLE); switch (err) { case -EBUSY: /* Someone else made a mount here whilst we were busy */ - err = 0; - default: - mnt_clear_expiry(mnt); - mntput(mnt); - mntput(mnt); - return err; + return 0; case 0: - mntput(mnt); dput(path->dentry); if (*need_mntput) mntput(path->mnt); @@ -961,7 +937,10 @@ static int follow_automount(struct path *path, unsigned flags, path->dentry = dget(mnt->mnt_root); *need_mntput = true; return 0; + default: + return err; } + } /* |