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/freebsd-11-stable/usr.sbin/mountd/
H A Dmountd.cdiff 362717 Sun Jun 28 04:12:30 MDT 2020 rmacklem MFC: r361854
Fix mountd so that it will not lose SIGHUPs that indicate "reload exports".

Without this patch, if a SIGHUP is handled while the process is executing
get_exportlist(), that SIGHUP is essentially ignored because the got_sighup
variable is reset to 0 after get_exportlist().
This results in the exports file(s) not being reloaded until another SIGHUP
signal is sent to mountd.
This patch fixes this by resetting got_sighup to zero before the
get_exportlist() call while SIGHUP is blocked.
It also defines a delay time of 250msec before doing another exports reload
if there are RPC request(s) to process. This prevents repeated exports reloads
from delaying handling of RPC requests significantly.

PR: 246597

Completed in 203 milliseconds