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| author | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2012-10-26 16:01:08 +0000 |
|---|---|---|
| committer | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2012-10-26 16:01:08 +0000 |
| commit | 36af98697d92141dcd4f4cca56da38a426ccb089 (patch) | |
| tree | 842a8cfc3ef8239e42a28dbb369918bc9a00b13e /sys/kern/subr_trap.c | |
| parent | 6cff4e07c15477db7747f98dc7ecbedfe7563d40 (diff) | |
| download | src-36af98697d92141dcd4f4cca56da38a426ccb089.tar.gz src-36af98697d92141dcd4f4cca56da38a426ccb089.zip | |
Add CPU percentage limit enforcement to RCTL. The resouce name is "pcpu".
It was implemented by Rudolf Tomori during Google Summer of Code 2012.
Notes
Notes:
svn path=/head/; revision=242139
Diffstat (limited to 'sys/kern/subr_trap.c')
| -rw-r--r-- | sys/kern/subr_trap.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sys/kern/subr_trap.c b/sys/kern/subr_trap.c index 66e32018e04f..70df8a10895c 100644 --- a/sys/kern/subr_trap.c +++ b/sys/kern/subr_trap.c @@ -100,6 +100,9 @@ void userret(struct thread *td, struct trapframe *frame) { struct proc *p = td->td_proc; +#ifdef RACCT + int sig; +#endif CTR3(KTR_SYSC, "userret: thread %p (pid %d, %s)", td, p->p_pid, td->td_name); @@ -163,6 +166,16 @@ userret(struct thread *td, struct trapframe *frame) __func__, td, p->p_pid, td->td_name, curvnet, (td->td_vnet_lpush != NULL) ? td->td_vnet_lpush : "N/A")); #endif +#ifdef RACCT + PROC_LOCK(p); + while (p->p_throttled == 1) { + sig = msleep(p->p_racct, &p->p_mtx, PCATCH | PBDRY, "racct", + hz); + if ((sig == EINTR) || (sig == ERESTART)) + break; + } + PROC_UNLOCK(p); +#endif } /* |