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Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts
From: |
Miklos Szeredi |
Subject: |
Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts |
Date: |
Wed, 29 Apr 2020 09:59:38 +0200 |
On Tue, Apr 28, 2020 at 9:15 PM Dr. David Alan Gilbert
<address@hidden> wrote:
> So our current sequence is:
>
> (new namespace)
> 1) if (mount(NULL, "/", NULL, MS_REC | MS_SLAVE, NULL) < 0) {
> 2) if (mount("proc", "/proc", "proc",
> ....
> 3) if (mount(source, source, NULL, MS_BIND | MS_REC, NULL) < 0) {
> 4) (chdir newroot, pivot, chdir oldroot)
> 5) if (mount("", ".", "", MS_SLAVE | MS_REC, NULL) < 0) {
> 6) if (umount2(".", MNT_DETACH) < 0) {
>
> So are you saying we need a:
> if (mount(NULL, "/", NULL, MS_REC | MS_SHARED, NULL) < 0) {
>
> and can this go straight after (1) ?
Or right before (3). Important thing is that that new mount will
only receive propagation if the type of the mount at source (before
(3) is performed) is shared.
Thanks,
Miklos
- Re: [PATCH] virtiofsd: Show submounts, (continued)
- Re: [PATCH] virtiofsd: Show submounts, Daniel P . Berrangé, 2020/04/28
- Re: [PATCH] virtiofsd: Show submounts, Stefan Hajnoczi, 2020/04/28
- Re: [PATCH] virtiofsd: Show submounts, Daniel P . Berrangé, 2020/04/28
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Miklos Szeredi, 2020/04/28
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Dr. David Alan Gilbert, 2020/04/28
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts,
Miklos Szeredi <=
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Miklos Szeredi, 2020/04/29
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Vivek Goyal, 2020/04/29
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Vivek Goyal, 2020/04/29
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Max Reitz, 2020/04/29
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Miklos Szeredi, 2020/04/29
- Re: [Virtio-fs] [PATCH] virtiofsd: Show submounts, Max Reitz, 2020/04/29
Re: [PATCH] virtiofsd: Show submounts, Dr. David Alan Gilbert, 2020/04/29