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crtools: close all desriptors only for the root task

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For all other tasks only unsed service descriptors will be closed.

This change allows to have file descriptors, which may be used for
restoring namespaces. All non-server descriptors must be closed before
restoring files.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2014-04-09 04:13:29 +04:00
committed by Pavel Emelyanov
parent bb5bba53b8
commit d36e07aabe
3 changed files with 28 additions and 9 deletions
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12
util.c
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@@ -341,6 +341,18 @@ int close_service_fd(enum sfd_type type)
return 0;
}
/* Close all unused service descriptors on a depth of nr. */
void close_old_servie_fd(int nr)
{
int level, i;
BUG_ON(service_fd_id != 0);
for (level = 1; level < nr; level++) {
for (i = SERVICE_FD_MIN + 1; i < SERVICE_FD_MAX; i++) {
close(__get_service_fd(i, level));
}
}
}
int clone_service_fd(int id)
{
int ret = -1, i;