switchroot: Fix regression for separately mounted /var

I made a logical error in #1617 which resulted in the exact *opposite*
behaviour we want when `/var` is a separate mount.

Split this out and lower the number of negations to make it more obvious
that it's correct.

Closes: #1667

Closes: #1668
Approved by: cgwalters
This commit is contained in:
Jonathan Lebon 2018-07-03 17:41:45 -04:00 committed by Atomic Bot
parent 8af389b758
commit a13ea6497e

View File

@ -151,14 +151,17 @@ main(int argc, char *argv[])
if (chdir (deploy_path) < 0)
err (EXIT_FAILURE, "failed to chdir to deploy_path");
/* Default to true, but in the systemd case, default to false because it's handled by
* ostree-system-generator. */
bool mount_var = true;
/* In the systemd case, this is handled by ostree-system-generator by default */
#ifndef HAVE_SYSTEMD_AND_LIBMOUNT
/* file in /run can override that behaviour */
if (lstat (INITRAMFS_MOUNT_VAR, &stbuf) < 0)
mount_var = false;
#ifdef HAVE_SYSTEMD_AND_LIBMOUNT
mount_var = false;
#endif
/* file in /run can override the default behaviour so that we definitely mount /var */
if (lstat (INITRAMFS_MOUNT_VAR, &stbuf) == 0)
mount_var = true;
/* Link to the deployment's /var */
if (mount_var && mount ("../../var", "var", NULL, MS_MGC_VAL|MS_BIND, NULL) < 0)
err (EXIT_FAILURE, "failed to bind mount ../../var to var");