Mirrors/criu
1
0
Fork 0
mirror of https://github.com/checkpoint-restore/criu.git synced 2026-07-23 18:19:39 +00:00
Code Issues Projects Releases Wiki Activity

mount: restore shared, slave, private properties.

Browse source 
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin 2013-08-13 17:02:48 +04:00 • committed by Pavel Emelyanov
parent 02d8a72bb5
commit 2eedcaabe5
1 changed files with 24 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

24
mount.c
View file

@ -699,6 +699,27 @@ static char *resolve_source(struct mount_info *mi)
return NULL;
}
static int restore_shared_options(struct mount_info *mi, bool private, bool shared, bool slave)
{
pr_debug("%d:%s private %d shared %d slave %d\n",
mi->mnt_id, mi->mountpoint, private, shared, slave);
if (private && mount(NULL, mi->mountpoint, NULL, MS_PRIVATE, NULL)) {
pr_perror("Unable to make %s private", mi->mountpoint);
return -1;
}
if (shared && mount(NULL, mi->mountpoint, NULL, MS_SHARED, NULL)) {
pr_perror("Unable to make %s shared", mi->mountpoint);
return -1;
}
if (slave && mount(NULL, mi->mountpoint, NULL, MS_SLAVE, NULL)) {
pr_perror("Unable to make %s slave", mi->mountpoint);
return -1;
}
return 0;
}
/*
* Umount points, which are propagated in slave parents, because
* we can't be sure, that they were inherited in a real life.
@ -788,6 +809,9 @@ static int do_new_mount(struct mount_info *mi)
return -1;
}
if (restore_shared_options(mi, 0, mi->shared_id, 0))
return -1;
if (tp->restore && tp->restore(mi))
return -1;