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MEDIUM: mux-fcgi: use task_kill() during fcgi_takeover() instead of task_wakeup()

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task_wakeup() passes the task through the global run queue under the
global RQ lock, which is expensive when dealing with large amounts of
fcgi_takeover() calls. Let's use the new task_kill() instead to kill the
task.
This commit is contained in:
Willy Tarreau 2020-07-01 16:39:33 +02:00
parent 617e80ff76
commit 88d18f81ae
1 changed files with 8 additions and 4 deletions
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12
src/mux_fcgi.c
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@ -4082,6 +4082,7 @@ static void fcgi_show_fd(struct buffer *msg, struct connection *conn)
static int fcgi_takeover(struct connection *conn)
{
struct fcgi_conn *fcgi = conn->ctx;
struct task *task;
if (fd_takeover(conn->handle.fd, conn) != 0)
return -1;
@ -4093,10 +4094,13 @@ static int fcgi_takeover(struct connection *conn)
*/
fcgi->wait_event.tasklet->context = NULL;
tasklet_wakeup(fcgi->wait_event.tasklet);
if (fcgi->task) {
fcgi->task->context = NULL;
/* Wake the task, to let it free itself */
task_wakeup(fcgi->task, TASK_WOKEN_OTHER);
task = fcgi->task;
if (task) {
task->context = NULL;
fcgi->task = NULL;
__ha_barrier_store();
task_kill(task);
fcgi->task = task_new(tid_bit);
if (!fcgi->task) {