autofs-5.1.9 - dont auto readmap for hosts map From: Ian Kent The internal hosts map can have a large number of hosts but also each host can have a large number of exports. In addition the auto-readmap has universal way to work out if a map read is needed. Becuase of this the auto-readmap can introduce an unnessesarily large overhead so change to requiring a HUP signal to update the hosts map. Signed-off-by: Ian Kent --- CHANGELOG | 1 + daemon/master.c | 15 +++++++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/CHANGELOG b/CHANGELOG index 20c076172..cc7fb477e 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -111,6 +111,7 @@ - fix thinko in __mnt_find_submount_by_devid(). - fix setting submount autofs_point in mnts_add_submount(). - improve function mnt_find_submount_by_devid(). +- dont auto readmap for hosts map. 02/11/2023 autofs-5.1.9 - fix kernel mount status notification. diff --git a/daemon/master.c b/daemon/master.c index 2734996f9..f1df80731 100644 --- a/daemon/master.c +++ b/daemon/master.c @@ -613,6 +613,12 @@ void send_map_update_request(struct autofs_point *ap) struct map_source *map; int status, need_update = 0; + /* Don't send an update request if the primary map is the + * "hosts" map. + */ + if (!strcmp(ap->entry->maps->type, "hosts")) + return; + status = pthread_mutex_lock(&instance_mutex); if (status) fatal(status); @@ -1503,8 +1509,13 @@ void check_update_map_sources(struct master_mapent *entry, int readall) master_source_unlock(entry); /* The map sources have changed */ - if (map_stale) - st_add_task(ap, ST_READMAP); + if (map_stale) { + /* Don't send an update request if the primary map is + * the "hosts" map. + */ + if (strcmp(ap->entry->maps->type, "hosts")) + st_add_task(ap, ST_READMAP); + } return; }