diff options
Diffstat (limited to 'sys/kern/subr_sleepqueue.c')
| -rw-r--r-- | sys/kern/subr_sleepqueue.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/sys/kern/subr_sleepqueue.c b/sys/kern/subr_sleepqueue.c index cc20799..cdf7a47 100644 --- a/sys/kern/subr_sleepqueue.c +++ b/sys/kern/subr_sleepqueue.c @@ -1018,7 +1018,7 @@ sleepq_abort(struct thread *td, int intrval) #ifdef SLEEPQUEUE_PROFILING #define SLEEPQ_PROF_LOCATIONS 1024 -#define SLEEPQ_SBUFSIZE (40 * 512) +#define SLEEPQ_SBUFSIZE 512 struct sleepq_prof { LIST_ENTRY(sleepq_prof) sp_link; const char *sp_wmesg; @@ -1123,15 +1123,13 @@ reset_sleepq_prof_stats(SYSCTL_HANDLER_ARGS) static int dump_sleepq_prof_stats(SYSCTL_HANDLER_ARGS) { - static int multiplier = 1; struct sleepq_prof *sp; struct sbuf *sb; int enabled; int error; int i; -retry_sbufops: - sb = sbuf_new(NULL, NULL, SLEEPQ_SBUFSIZE * multiplier, SBUF_FIXEDLEN); + sb = sbuf_new_for_sysctl(NULL, NULL, SLEEPQ_SBUFSIZE, req); sbuf_printf(sb, "\nwmesg\tcount\n"); enabled = prof_enabled; mtx_lock_spin(&sleepq_prof_lock); @@ -1141,19 +1139,13 @@ retry_sbufops: LIST_FOREACH(sp, &sleepq_hash[i], sp_link) { sbuf_printf(sb, "%s\t%ld\n", sp->sp_wmesg, sp->sp_count); - if (sbuf_overflowed(sb)) { - sbuf_delete(sb); - multiplier++; - goto retry_sbufops; - } } } mtx_lock_spin(&sleepq_prof_lock); prof_enabled = enabled; mtx_unlock_spin(&sleepq_prof_lock); - sbuf_finish(sb); - error = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb) + 1); + error = sbuf_finish(sb); sbuf_delete(sb); return (error); } |
