svn commit: r185465 - head/sys/dev/hwpmc

[Joseph Koshy]

Author: jkoshy
Date: Sun Nov 30 05:10:14 2008
New Revision: 185465
URL: http://svn.freebsd.org/changeset/base/185465

Log:
  Improve a comment.

Modified:
  head/sys/dev/hwpmc/hwpmc_logging.c

Modified: head/sys/dev/hwpmc/hwpmc_logging.c
==============================================================================
--- head/sys/dev/hwpmc/hwpmc_logging.c	Sun Nov 30 04:44:46 2008	(r185464)
+++ head/sys/dev/hwpmc/hwpmc_logging.c	Sun Nov 30 05:10:14 2008	(r185465)
@@ -281,15 +281,18 @@ pmclog_loop(void *arg)
 			if ((lb = TAILQ_FIRST(&po->po_logbuffers)) == NULL) {
 				mtx_unlock_spin(&po->po_mtx);
 
-				/* wakeup any processes waiting for a FLUSH */
+				/*
+				 * Wakeup the thread waiting for the
+				 * PMC_OP_FLUSHLOG request to
+				 * complete.
+				 */
 				if (po->po_flags & PMC_PO_IN_FLUSH) {
 					po->po_flags &= ~PMC_PO_IN_FLUSH;
 					wakeup_one(po->po_kthread);
 				}
 
-
-				(void) msleep(po, &pmc_kthread_mtx,
-				    PWAIT, "pmcloop", 0);
+				(void) msleep(po, &pmc_kthread_mtx, PWAIT,
+				    "pmcloop", 0);
 				continue;
 			}