| From a9d1c4c6df0e568207907c04aed9e7beb1294c42 Mon Sep 17 00:00:00 2001 |
| From: Miklos Szeredi <mszeredi@redhat.com> |
| Date: Wed, 7 Jun 2023 17:49:20 +0200 |
| Subject: fuse: revalidate: don't invalidate if interrupted |
| |
| From: Miklos Szeredi <mszeredi@redhat.com> |
| |
| commit a9d1c4c6df0e568207907c04aed9e7beb1294c42 upstream. |
| |
| If the LOOKUP request triggered from fuse_dentry_revalidate() is |
| interrupted, then the dentry will be invalidated, possibly resulting in |
| submounts being unmounted. |
| |
| Reported-by: Xu Rongbo <xurongbo@baidu.com> |
| Closes: https://lore.kernel.org/all/CAJfpegswN_CJJ6C3RZiaK6rpFmNyWmXfaEpnQUJ42KCwNF5tWw@mail.gmail.com/ |
| Fixes: 9e6268db496a ("[PATCH] FUSE - read-write operations") |
| Cc: <stable@vger.kernel.org> |
| Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| fs/fuse/dir.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/fs/fuse/dir.c |
| +++ b/fs/fuse/dir.c |
| @@ -249,7 +249,7 @@ static int fuse_dentry_revalidate(struct |
| spin_unlock(&fi->lock); |
| } |
| kfree(forget); |
| - if (ret == -ENOMEM) |
| + if (ret == -ENOMEM || ret == -EINTR) |
| goto out; |
| if (ret || fuse_invalid_attr(&outarg.attr) || |
| fuse_stale_inode(inode, outarg.generation, &outarg.attr)) |
