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light: shotdown mode, delay re-creation of resource

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This commit is contained in:
Thomas Schoebel-Theuer 2014-02-03 13:02:17 +01:00
parent 2eb8162a05
commit bebcc10fc2
1 changed files with 21 additions and 2 deletions
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23
kernel/sy_old/mars_light.c
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@ -294,6 +294,7 @@ struct mars_rotate {
int copy_next_is_available; int copy_next_is_available;
int relevant_serial; int relevant_serial;
bool has_symlinks; bool has_symlinks;
bool res_shutdown;
bool has_error; bool has_error;
bool allow_update; bool allow_update;
bool forbid_replay; bool forbid_replay;
@ -2345,6 +2346,10 @@ int make_log_init(void *buf, struct mars_dent *dent)
// check whether attach is allowed // check whether attach is allowed
switch_on = _check_allow(global, parent, "attach"); switch_on = _check_allow(global, parent, "attach");
if (switch_on && rot->res_shutdown) {
MARS_ERR("cannot start transaction logger: resource shutdown mode is currently active\n");
switch_on = false;
}
/* Fetch / make the AIO brick instance /* Fetch / make the AIO brick instance
*/ */
@ -3260,6 +3265,10 @@ int make_bio(void *buf, struct mars_dent *dent)
rot->has_symlinks = true; rot->has_symlinks = true;
switch_on = _check_allow(global, dent->d_parent, "attach"); switch_on = _check_allow(global, dent->d_parent, "attach");
if (switch_on && rot->res_shutdown) {
MARS_ERR("cannot access disk: resource shutdown mode is currently active\n");
switch_on = false;
}
brick = brick =
make_brick_all(global, make_brick_all(global,
@ -3380,6 +3389,10 @@ int make_dev(void *buf, struct mars_dent *dent)
if (!global->global_power.button) { if (!global->global_power.button) {
switch_on = false; switch_on = false;
} }
if (switch_on && rot->res_shutdown) {
MARS_ERR("cannot create device: resource shutdown mode is currently active\n");
switch_on = false;
}
dev_brick = dev_brick =
make_brick_all(global, make_brick_all(global,
@ -3917,8 +3930,12 @@ int kill_res(void *buf, struct mars_dent *dent)
MARS_DBG("symlinks were present, nothing to kill.\n"); MARS_DBG("symlinks were present, nothing to kill.\n");
goto done; goto done;
} }
// this code is only executed in case of forced deletion of symlinks
// this code is only executed in case of forced deletion of symlinks
if (rot->if_brick || rot->sync_brick || rot->copy_brick || rot->trans_brick) {
rot->res_shutdown = true;
MARS_WRN("resource '%s' has no symlinks, shutting down.\n", rot->parent_path);
}
if (rot->if_brick) { if (rot->if_brick) {
if (atomic_read(&rot->if_brick->open_count) > 0) { if (atomic_read(&rot->if_brick->open_count) > 0) {
MARS_ERR("cannot destroy resource '%s': device is is use!\n", rot->parent_path); MARS_ERR("cannot destroy resource '%s': device is is use!\n", rot->parent_path);
@ -3959,7 +3976,9 @@ int kill_res(void *buf, struct mars_dent *dent)
MARS_INF("switching off resource '%s', logger status = %d\n", rot->parent_path, status); MARS_INF("switching off resource '%s', logger status = %d\n", rot->parent_path, status);
} }
} }
if (!rot->if_brick && !rot->sync_brick && !rot->copy_brick && !rot->trans_brick) {
rot->res_shutdown = false;
}
done: done:
return 0; return 0;