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| author | John Baldwin <jhb@FreeBSD.org> | 2012-03-08 19:41:05 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2012-03-08 19:41:05 +0000 |
| commit | 44ad5475222d2043df40fcbe3f5703915ee16468 (patch) | |
| tree | 2da9212f02713305c4064fc6709c0a7a490815ce /sys/kern/kern_exec.c | |
| parent | fb175d1c8134efd7016acfbc1e725bd99df80eb9 (diff) | |
| download | src-44ad5475222d2043df40fcbe3f5703915ee16468.tar.gz src-44ad5475222d2043df40fcbe3f5703915ee16468.zip | |
Add a new sched_clear_name() method to the scheduler interface to clear
the cached name used for KTR_SCHED traces when a thread's name changes.
This way KTR_SCHED traces (and thus schedgraph) will notice when a thread's
name changes, most commonly via execve().
MFC after: 2 weeks
Notes
Notes:
svn path=/head/; revision=232700
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 135f7986a827..dac4703e6afa 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$"); #include <sys/pioctl.h> #include <sys/namei.h> #include <sys/resourcevar.h> +#include <sys/sched.h> #include <sys/sdt.h> #include <sys/sf_buf.h> #include <sys/syscallsubr.h> @@ -636,6 +637,9 @@ interpret: else if (vn_commname(binvp, p->p_comm, sizeof(p->p_comm)) != 0) bcopy(fexecv_proc_title, p->p_comm, sizeof(fexecv_proc_title)); bcopy(p->p_comm, td->td_name, sizeof(td->td_name)); +#ifdef KTR + sched_clear_tdname(td); +#endif /* * mark as execed, wakeup the process that vforked (if any) and tell |