diff options
| author | markj <markj@FreeBSD.org> | 2014-08-24 17:10:47 +0000 |
|---|---|---|
| committer | markj <markj@FreeBSD.org> | 2014-08-24 17:10:47 +0000 |
| commit | 46bd89ef4cc8e38b4ea093f38353946ba8d86705 (patch) | |
| tree | eef55d0bdd12861c338089e0ff2e12dff30e6137 | |
| parent | bf5f21dde4e784fd1c07ddcdab78b4c1eff24b1b (diff) | |
| download | FreeBSD-src-46bd89ef4cc8e38b4ea093f38353946ba8d86705.zip FreeBSD-src-46bd89ef4cc8e38b4ea093f38353946ba8d86705.tar.gz | |
Restore the correct value when disabling probes. Otherwise the instrumented
tracepoints would continue to generate traps, which would be ignored but
could consume noticeable amounts of CPU if, say, all functions in the kernel
were instrumented.
X-MFC-With: r270067
| -rw-r--r-- | sys/cddl/dev/fbt/fbt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/cddl/dev/fbt/fbt.c b/sys/cddl/dev/fbt/fbt.c index 894eb62..a8b86a0 100644 --- a/sys/cddl/dev/fbt/fbt.c +++ b/sys/cddl/dev/fbt/fbt.c @@ -121,7 +121,7 @@ fbt_doubletrap(void) fbt = fbt_probetab[i]; for (; fbt != NULL; fbt = fbt->fbtp_next) - *fbt->fbtp_patchpoint = fbt->fbtp_savedval; + fbt_patch_tracepoint(fbt, fbt->fbtp_savedval); } } @@ -253,7 +253,7 @@ fbt_disable(void *arg, dtrace_id_t id, void *parg) return; for (; fbt != NULL; fbt = fbt->fbtp_next) - fbt_patch_tracepoint(fbt, fbt->fbtp_patchval); + fbt_patch_tracepoint(fbt, fbt->fbtp_savedval); } static void @@ -268,7 +268,7 @@ fbt_suspend(void *arg, dtrace_id_t id, void *parg) return; for (; fbt != NULL; fbt = fbt->fbtp_next) - fbt_patch_tracepoint(fbt, fbt->fbtp_patchval); + fbt_patch_tracepoint(fbt, fbt->fbtp_savedval); } static void |
