diff options
-rw-r--r-- | fs/namei.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/fs/namei.c b/fs/namei.c index 6bdb8d732538..183a769537fe 100644 --- a/fs/namei.c +++ b/fs/namei.c | |||
@@ -2614,22 +2614,11 @@ finish_open_created: | |||
2614 | goto exit; | 2614 | goto exit; |
2615 | od->mnt = nd->path.mnt; | 2615 | od->mnt = nd->path.mnt; |
2616 | filp = finish_open(od, nd->path.dentry, NULL); | 2616 | filp = finish_open(od, nd->path.dentry, NULL); |
2617 | if (filp == ERR_PTR(-EOPENSTALE) && save_parent.dentry && !retried) { | 2617 | if (IS_ERR(filp)) { |
2618 | BUG_ON(save_parent.dentry != dir); | 2618 | if (filp == ERR_PTR(-EOPENSTALE)) |
2619 | path_put(&nd->path); | 2619 | goto stale_open; |
2620 | nd->path = save_parent; | ||
2621 | nd->inode = dir->d_inode; | ||
2622 | save_parent.mnt = NULL; | ||
2623 | save_parent.dentry = NULL; | ||
2624 | if (want_write) { | ||
2625 | mnt_drop_write(nd->path.mnt); | ||
2626 | want_write = false; | ||
2627 | } | ||
2628 | retried = true; | ||
2629 | goto retry_lookup; | ||
2630 | } | ||
2631 | if (IS_ERR(filp)) | ||
2632 | goto out; | 2620 | goto out; |
2621 | } | ||
2633 | error = open_check_o_direct(filp); | 2622 | error = open_check_o_direct(filp); |
2634 | if (error) | 2623 | if (error) |
2635 | goto exit_fput; | 2624 | goto exit_fput; |
@@ -2659,6 +2648,23 @@ exit_fput: | |||
2659 | fput(filp); | 2648 | fput(filp); |
2660 | goto exit; | 2649 | goto exit; |
2661 | 2650 | ||
2651 | stale_open: | ||
2652 | /* If no saved parent or already retried then can't retry */ | ||
2653 | if (!save_parent.dentry || retried) | ||
2654 | goto out; | ||
2655 | |||
2656 | BUG_ON(save_parent.dentry != dir); | ||
2657 | path_put(&nd->path); | ||
2658 | nd->path = save_parent; | ||
2659 | nd->inode = dir->d_inode; | ||
2660 | save_parent.mnt = NULL; | ||
2661 | save_parent.dentry = NULL; | ||
2662 | if (want_write) { | ||
2663 | mnt_drop_write(nd->path.mnt); | ||
2664 | want_write = false; | ||
2665 | } | ||
2666 | retried = true; | ||
2667 | goto retry_lookup; | ||
2662 | } | 2668 | } |
2663 | 2669 | ||
2664 | static struct file *path_openat(int dfd, const char *pathname, | 2670 | static struct file *path_openat(int dfd, const char *pathname, |