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say: use new smp waiting

This commit is contained in:
Thomas Schoebel-Theuer 2022-08-23 16:03:52 +02:00
parent c116837aad
commit f33c330109
1 changed files with 10 additions and 6 deletions
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16
kernel/brick_say.c
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@ -27,6 +27,7 @@
#include <linux/string.h>
#include <linux/pagemap.h>
#include "brick_wait.h"
#include "brick_say.h"
#include "lamport.h"
@ -151,10 +152,13 @@ void wait_channel(struct say_channel *ch, int class)
{
if (delay_say_on_overflow && ch->ch_index[class] > SAY_BUF_LIMIT) {
bool use_atomic = cannot_schedule();
if (!use_atomic) {
say_dirty = true;
wake_up_interruptible(&say_event);
wait_event_interruptible_timeout(ch->ch_progress, ch->ch_index[class] < SAY_BUF_LIMIT, HZ / 10);
brick_wake_smp(&say_event);
brick_wait_smp(ch->ch_progress,
ch->ch_index[class] < SAY_BUF_LIMIT,
HZ / 10);
}
}
}
@ -571,7 +575,7 @@ void say_to(struct say_channel *ch, int class, const char *fmt, ...)
spin_unlock_irqrestore(&ch->ch_lock[class], flags);
wake_up_interruptible(&say_event);
brick_wake_smp(&say_event);
}
}
EXPORT_SYMBOL_GPL(say_to);
@ -656,7 +660,7 @@ void brick_say_to(struct say_channel *ch, int class, bool dump, const char *pref
if (dump)
brick_dump_stack();
#endif
wake_up_interruptible(&say_event);
brick_wake_smp(&say_event);
}
EXPORT_SYMBOL_GPL(brick_say_to);
@ -819,7 +823,7 @@ void treat_channel(struct say_channel *ch, int class)
spin_unlock_irqrestore(&ch->ch_lock[class], flags);
wake_up_interruptible(&ch->ch_progress);
brick_wake_smp(&ch->ch_progress);
ch->ch_status_written += len;
out_to_syslog(class, buf, len);
@ -866,7 +870,7 @@ int _say_thread(void *data)
struct say_channel *ch;
int i;
wait_event_interruptible_timeout(say_event, say_dirty, HZ);
brick_wait_smp(say_event, say_dirty, HZ);
say_dirty = false;
restart_rollover: