afs: Don't assert on unpurgeable server records

Don't give an assertion failure on unpurgeable afs_server records - which
kills the thread - but rather emit a trace line when we are purging a
record (which only happens during network namespace removal or rmmod) and
print a notice of the problem.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2020-10-15 09:02:25 +01:00
parent dca54a7bbb
commit 7530d3eb3d
2 changed files with 8 additions and 1 deletions

View File

@ -550,7 +550,12 @@ void afs_manage_servers(struct work_struct *work)
_debug("manage %pU %u", &server->uuid, active);
ASSERTIFCMP(purging, active, ==, 0);
if (purging) {
trace_afs_server(server, atomic_read(&server->ref),
active, afs_server_trace_purging);
if (active != 0)
pr_notice("Can't purge s=%08x\n", server->debug_id);
}
if (active == 0) {
time64_t expire_at = server->unuse_time;

View File

@ -40,6 +40,7 @@ enum afs_server_trace {
afs_server_trace_get_new_cbi,
afs_server_trace_get_probe,
afs_server_trace_give_up_cb,
afs_server_trace_purging,
afs_server_trace_put_call,
afs_server_trace_put_cbi,
afs_server_trace_put_find_rsq,
@ -311,6 +312,7 @@ enum afs_cb_break_reason {
EM(afs_server_trace_get_new_cbi, "GET cbi ") \
EM(afs_server_trace_get_probe, "GET probe") \
EM(afs_server_trace_give_up_cb, "giveup-cb") \
EM(afs_server_trace_purging, "PURGE ") \
EM(afs_server_trace_put_call, "PUT call ") \
EM(afs_server_trace_put_cbi, "PUT cbi ") \
EM(afs_server_trace_put_find_rsq, "PUT f-rsq") \