diff options
| author | jake <jake@FreeBSD.org> | 2000-11-22 07:42:04 +0000 |
|---|---|---|
| committer | jake <jake@FreeBSD.org> | 2000-11-22 07:42:04 +0000 |
| commit | 0c0be4e82677a2d8fb49b7a70676bf359e7360b0 (patch) | |
| tree | a0c32260edfde6d861e66b11172147608684043e /sys/alpha | |
| parent | 1b544875743d53491a096b0c757bf30ce73bb83b (diff) | |
| download | FreeBSD-src-0c0be4e82677a2d8fb49b7a70676bf359e7360b0.zip FreeBSD-src-0c0be4e82677a2d8fb49b7a70676bf359e7360b0.tar.gz | |
Protect the following with a lockmgr lock:
allproc
zombproc
pidhashtbl
proc.p_list
proc.p_hash
nextpid
Reviewed by: jhb
Obtained from: BSD/OS and netbsd
Diffstat (limited to 'sys/alpha')
| -rw-r--r-- | sys/alpha/alpha/pmap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/alpha/alpha/pmap.c b/sys/alpha/alpha/pmap.c index 8164ca6..09cf8ec 100644 --- a/sys/alpha/alpha/pmap.c +++ b/sys/alpha/alpha/pmap.c @@ -723,12 +723,16 @@ pmap_get_asn(pmap_t pmap) printf("pmap_get_asn: generation rollover\n"); #endif PCPU_GET(current_asngen) = 1; + lockmgr(&allproc_lock, LK_SHARED, NULL, + CURPROC); LIST_FOREACH(p, &allproc, p_list) { if (p->p_vmspace) { tpmap = vmspace_pmap(p->p_vmspace); tpmap->pm_asn[PCPU_GET(cpuno)].gen = 0; } } + lockmgr(&allproc_lock, LK_RELEASE, NULL, + CURPROC); } /* @@ -1553,12 +1557,14 @@ pmap_growkernel(vm_offset_t addr) newlev1 = pmap_phys_to_pte(pa) | PG_V | PG_ASM | PG_KRE | PG_KWE; + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); LIST_FOREACH(p, &allproc, p_list) { if (p->p_vmspace) { pmap = vmspace_pmap(p->p_vmspace); *pmap_lev1pte(pmap, kernel_vm_end) = newlev1; } } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); *pte = newlev1; pmap_invalidate_all(kernel_pmap); } @@ -3057,6 +3063,7 @@ pmap_pid_dump(int pid) struct proc *p; int npte = 0; int index; + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); LIST_FOREACH(p, &allproc, p_list) { if (p->p_pid != pid) continue; @@ -3079,6 +3086,7 @@ pmap_pid_dump(int pid) index = 0; printf("\n"); } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); return npte; } pte = pmap_pte_quick( pmap, va); @@ -3103,6 +3111,7 @@ pmap_pid_dump(int pid) } } } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); return npte; } #endif |
