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ipmi:msghandler: Move timer handling into a work queue

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Get all operations that manipulate the interface list into thread
context.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard
2025-03-18 16:08:45 -05:00
parent 305923bd3b
commit 742219863e
1 changed files with 15 additions and 1 deletions
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16
drivers/char/ipmi/ipmi_msghandler.c
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@@ -5083,8 +5083,11 @@ static struct timer_list ipmi_timer;
static atomic_t stop_operation;
static void ipmi_timeout(struct timer_list *unused)
static void ipmi_timeout_work(struct work_struct *work)
{
if (atomic_read(&stop_operation))
return;
struct ipmi_smi *intf;
bool need_timer = false;
int index;
@@ -5111,6 +5114,16 @@ static void ipmi_timeout(struct timer_list *unused)
mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
}
static DECLARE_WORK(ipmi_timer_work, ipmi_timeout_work);
static void ipmi_timeout(struct timer_list *unused)
{
if (atomic_read(&stop_operation))
return;
queue_work(system_bh_wq, &ipmi_timer_work);
}
static void need_waiter(struct ipmi_smi *intf)
{
/* Racy, but worst case we start the timer twice. */
@@ -5538,6 +5551,7 @@ static void __exit cleanup_ipmi(void)
*/
atomic_set(&stop_operation, 1);
timer_delete_sync(&ipmi_timer);
cancel_work_sync(&ipmi_timer_work);
initialized = false;