diff --git a/include/haproxy/thread-t.h b/include/haproxy/thread-t.h
index d2bf8d3..33782f3 100644
--- a/include/haproxy/thread-t.h
+++ b/include/haproxy/thread-t.h
@@ -97,10 +97,13 @@
 struct lock_stat {
 	uint64_t nsec_wait_for_write;
 	uint64_t nsec_wait_for_read;
+	uint64_t nsec_wait_for_seek;
 	uint64_t num_write_locked;
 	uint64_t num_write_unlocked;
 	uint64_t num_read_locked;
 	uint64_t num_read_unlocked;
+	uint64_t num_seek_locked;
+	uint64_t num_seek_unlocked;
 };
 
 struct ha_spinlock {
@@ -123,6 +126,8 @@
 		unsigned long wait_writers; /* a bit is set to 1 << tid for waiting writers */
 		unsigned long cur_readers; /* a bit is set to 1 << tid for current readers */
 		unsigned long wait_readers; /* a bit is set to 1 << tid for waiting waiters */
+		unsigned long cur_seeker;   /* a bit is set to 1 << tid for the lock seekers */
+		unsigned long wait_seekers; /* a bit is set to 1 << tid for waiting seekers */
 		struct {
 			const char *function;
 			const char *file;
diff --git a/include/haproxy/thread.h b/include/haproxy/thread.h
index a9a4b62..a3451bd 100644
--- a/include/haproxy/thread.h
+++ b/include/haproxy/thread.h
@@ -422,16 +422,26 @@
 			"\t # write unlock: %lu (%ld)\n"
 			"\t # wait time for write     : %.3f msec\n"
 			"\t # wait time for write/lock: %.3f nsec\n"
+			"\t # seek lock   : %lu\n"
+			"\t # seek unlock : %lu (%ld)\n"
+			"\t # wait time for seek      : %.3f msec\n"
+			"\t # wait time for seek/lock : %.3f nsec\n"
 			"\t # read lock   : %lu\n"
 			"\t # read unlock : %lu (%ld)\n"
 			"\t # wait time for read      : %.3f msec\n"
 			"\t # wait time for read/lock : %.3f nsec\n",
+
 			lock_label(lbl),
 			lock_stats[lbl].num_write_locked,
 			lock_stats[lbl].num_write_unlocked,
 			lock_stats[lbl].num_write_unlocked - lock_stats[lbl].num_write_locked,
 			(double)lock_stats[lbl].nsec_wait_for_write / 1000000.0,
 			lock_stats[lbl].num_write_locked ? ((double)lock_stats[lbl].nsec_wait_for_write / (double)lock_stats[lbl].num_write_locked) : 0,
+			lock_stats[lbl].num_seek_locked,
+			lock_stats[lbl].num_seek_unlocked,
+			lock_stats[lbl].num_seek_unlocked - lock_stats[lbl].num_seek_locked,
+			(double)lock_stats[lbl].nsec_wait_for_seek / 1000000.0,
+			lock_stats[lbl].num_seek_locked ? ((double)lock_stats[lbl].nsec_wait_for_seek / (double)lock_stats[lbl].num_seek_locked) : 0,
 			lock_stats[lbl].num_read_locked,
 			lock_stats[lbl].num_read_unlocked,
 			lock_stats[lbl].num_read_unlocked - lock_stats[lbl].num_read_locked,