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Handle the case where there is only one PMC in the system.

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Approved by: jkoshy (mentor)
MFC after: 3 days
This commit is contained in:
fabient 2009-10-21 18:46:36 +00:00
parent aca95fc6eb
commit 2e71479d97
1 changed files with 4 additions and 4 deletions
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8
sys/dev/hwpmc/hwpmc_mod.c
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@ -790,7 +790,7 @@ pmc_link_target_process(struct pmc *pm, struct pmc_process *pp)
KASSERT(PMC_IS_VIRTUAL_MODE(PMC_TO_MODE(pm)),
("[pmc,%d] Attaching a non-process-virtual pmc=%p to pid=%d",
__LINE__, pm, pp->pp_proc->p_pid));
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < ((int) md->pmd_npmc - 1),
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= ((int) md->pmd_npmc - 1),
("[pmc,%d] Illegal reference count %d for process record %p",
__LINE__, pp->pp_refcnt, (void *) pp));
@ -843,7 +843,7 @@ pmc_unlink_target_process(struct pmc *pm, struct pmc_process *pp)
KASSERT(pm != NULL && pp != NULL,
("[pmc,%d] Null pm %p or pp %p", __LINE__, pm, pp));
KASSERT(pp->pp_refcnt >= 1 && pp->pp_refcnt < (int) md->pmd_npmc,
KASSERT(pp->pp_refcnt >= 1 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal ref count %d on process record %p",
__LINE__, pp->pp_refcnt, (void *) pp));
@ -1110,7 +1110,7 @@ pmc_detach_one_process(struct proc *p, struct pmc *pm, int flags)
* descriptor from the target hash table and unset the P_HWPMC
* flag in the struct proc.
*/
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < (int) md->pmd_npmc,
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal refcnt %d for process struct %p",
__LINE__, pp->pp_refcnt, pp));
@ -1785,7 +1785,7 @@ pmc_hook_handler(struct thread *td, int function, void *arg)
pmc_detach_one_process(td->td_proc,
pm, PMC_FLAG_NONE);
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < (int) md->pmd_npmc,
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal ref count %d on pp %p", __LINE__,
pp->pp_refcnt, pp));