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resolve: drop code for supporting old kernels (<3.2)

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Now our baseline on the kernel is 5.4.

Note, the removed code triggered assert_return() in
sd_event_source_set_description().
This commit is contained in:
Yu Watanabe
2025-04-14 20:46:27 +09:00
parent 5e3887e6c1
commit cc983fc9dc
1 changed files with 2 additions and 7 deletions
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9
src/resolve/resolved-manager.c
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@@ -518,13 +518,8 @@ static int manager_watch_hostname(Manager *m) {
}
r = sd_event_add_io(m->event, &m->hostname_event_source, m->hostname_fd, 0, on_hostname_change, m);
if (r < 0) {
if (r == -EPERM)
/* kernels prior to 3.2 don't support polling this file. Ignore the failure. */
m->hostname_fd = safe_close(m->hostname_fd);
else
return log_error_errno(r, "Failed to add hostname event source: %m");
}
if (r < 0)
return log_error_errno(r, "Failed to add hostname event source: %m");
(void) sd_event_source_set_description(m->hostname_event_source, "hostname");