git: 1d92e81fa479 - main - cam/iosched: fix off by one error

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=1d92e81fa47925dab1fa3779b8e8e2e35d3c14ce

commit 1d92e81fa47925dab1fa3779b8e8e2e35d3c14ce
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2021-12-06 05:57:50 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2021-12-06 06:00:01 +0000

    cam/iosched: fix off by one error
    
    Set the bucket size to be SBT_1US/50000 + 1 to be the first number >
    20us. I had this uncommitted in my three when I pushed 2283206935b8
    since kern.cam.iosched.bucket_base_us was reporting 19us.
    
    Fixes:          2283206935b8
    Sponsored by:   Netflix
---
 sys/cam/cam_iosched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/cam/cam_iosched.c b/sys/cam/cam_iosched.c
index 10caefdb02ea..4d584dc160a3 100644
--- a/sys/cam/cam_iosched.c
+++ b/sys/cam/cam_iosched.c
@@ -112,7 +112,7 @@ SYSCTL_INT(_kern_cam_iosched, OID_AUTO, alpha_bits, CTLFLAG_RW | CTLFLAG_TUN,
  * of 5.2s which is safeily larger than 1s to help diagnose extreme outliers better.
  */
 #ifndef BUCKET_BASE
-#define BUCKET_BASE (SBT_1S / 50000)	/* 20us */
+#define BUCKET_BASE ((SBT_1S / 50000) + 1)	/* 20us */
 #endif
 static sbintime_t bucket_base = BUCKET_BASE;
 SYSCTL_SBINTIME_USEC(_kern_cam_iosched, OID_AUTO, bucket_base_us, CTLFLAG_RD,