From 5f8ae398ae2ff71aacd85663e30eebb4ce0078f4 Mon Sep 17 00:00:00 2001 From: Michael Olbrich Date: Fri, 24 Jul 2015 22:21:59 +0200 Subject: automount: don't try to umount if it already happened Return the token immediately instead. Otherwise the token is never returned to the kernel, because the umount job is a noop and will not trigger a state change. --- src/core/automount.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'src/core') diff --git a/src/core/automount.c b/src/core/automount.c index b8a8a92b54..1190b6cb64 100644 --- a/src/core/automount.c +++ b/src/core/automount.c @@ -907,6 +907,7 @@ static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, vo _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; union autofs_v5_packet_union packet; Automount *a = AUTOMOUNT(userdata); + struct stat st; int r; assert(a); @@ -966,6 +967,19 @@ static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, vo log_unit_error_errno(UNIT(a), r, "Failed to remember token: %m"); goto fail; } + + /* Before we do anything, let's see if somebody is playing games with us? */ + if (lstat(a->where, &st) < 0) { + log_unit_warning_errno(UNIT(a), errno, "Failed to stat automount point: %m"); + goto fail; + } + + if (!S_ISDIR(st.st_mode) || st.st_dev == a->dev_id) { + log_unit_info(UNIT(a), "Automount point already unmounted?"); + automount_send_ready(a, a->expire_tokens, 0); + break; + } + r = manager_add_job(UNIT(a)->manager, JOB_STOP, UNIT_TRIGGER(UNIT(a)), JOB_REPLACE, true, &error, NULL); if (r < 0) { log_unit_warning(UNIT(a), "Failed to queue umount startup job: %s", bus_error_message(&error, r)); -- cgit v1.2.3-54-g00ecf