7 invocations of hook_node_grants()

block_list in drupal-6.x/modules/block/block.module
Return all blocks in the specified region for the current user.
module_disable in drupal-6.x/includes/module.inc
Disable a given set of modules.
module_enable in drupal-6.x/includes/module.inc
Enable a given list of modules.
node_access_grants in drupal-6.x/modules/node/node.module
Fetch an array of permission IDs granted to the given user ID.
node_access_rebuild in drupal-6.x/modules/node/node.module
Rebuild the node access database. This is occasionally needed by modules that make system-wide changes to access levels.
node_access_write_grants in drupal-6.x/modules/node/node.module
Writes a list of grants to the database, deleting any previously saved ones.
system_performance_settings in drupal-6.x/modules/system/system.admin.inc
Form builder; Configure site performance settings.