git: 32faf071bd54 - main - devstat: Remove DTrace io probes lacking a BIO reference

[Mark Johnston]

The branch main has been updated by markj:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=32faf071bd54c0e2e1ac07700f7ea5a3d6fa8d51

commit 32faf071bd54c0e2e1ac07700f7ea5a3d6fa8d51
Author:     Mark Johnston <ma...@freebsd.org>
AuthorDate: 2022-08-29 17:22:36 +0000
Commit:     Mark Johnston <ma...@freebsd.org>
CommitDate: 2022-08-29 17:22:36 +0000

    devstat: Remove DTrace io probes lacking a BIO reference
    
    The io:::start and end probes trace individual I/O requests.
    
    Also remove the unimplemented wait-start and wait-done probes.
    
    PR:             266098
    MFC after:      1 week
---
 sys/kern/subr_devstat.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/sys/kern/subr_devstat.c b/sys/kern/subr_devstat.c
index 98a41fd179c2..7b6e778a327f 100644
--- a/sys/kern/subr_devstat.c
+++ b/sys/kern/subr_devstat.c
@@ -52,17 +52,9 @@ SDT_PROVIDER_DEFINE(io);
 
 SDT_PROBE_DEFINE2(io, , , start, "struct bio *", "struct devstat *");
 SDT_PROBE_DEFINE2(io, , , done, "struct bio *", "struct devstat *");
-SDT_PROBE_DEFINE2(io, , , wait__start, "struct bio *",
-    "struct devstat *");
-SDT_PROBE_DEFINE2(io, , , wait__done, "struct bio *",
-    "struct devstat *");
 
-#define        DTRACE_DEVSTAT_START()          SDT_PROBE2(io, , , start, NULL, 
ds)
 #define        DTRACE_DEVSTAT_BIO_START()      SDT_PROBE2(io, , , start, bp, 
ds)
-#define        DTRACE_DEVSTAT_DONE()           SDT_PROBE2(io, , , done, NULL, 
ds)
 #define        DTRACE_DEVSTAT_BIO_DONE()       SDT_PROBE2(io, , , done, bp, ds)
-#define        DTRACE_DEVSTAT_WAIT_START()     SDT_PROBE2(io, , , wait__start, 
NULL, ds)
-#define        DTRACE_DEVSTAT_WAIT_DONE()      SDT_PROBE2(io, , , wait__done, 
NULL, ds)
 
 static int devstat_num_devs;
 static long devstat_generation = 1;
@@ -245,7 +237,6 @@ devstat_start_transaction(struct devstat *ds, const struct 
bintime *now)
                        binuptime(&ds->busy_from);
        }
        atomic_add_rel_int(&ds->sequence0, 1);
-       DTRACE_DEVSTAT_START();
 }
 
 void
@@ -341,7 +332,6 @@ devstat_end_transaction(struct devstat *ds, uint32_t bytes,
 
        ds->end_count++;
        atomic_add_rel_int(&ds->sequence0, 1);
-       DTRACE_DEVSTAT_DONE();
 }
 
 void