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| 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/kern/kern_resource.c | |
| 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/kern/kern_resource.c')
| -rw-r--r-- | sys/kern/kern_resource.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/kern_resource.c b/sys/kern/kern_resource.c index b0d38c0..f37d49d 100644 --- a/sys/kern/kern_resource.c +++ b/sys/kern/kern_resource.c @@ -119,11 +119,13 @@ getpriority(curp, uap) case PRIO_USER: if (uap->who == 0) uap->who = curp->p_ucred->cr_uid; + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); LIST_FOREACH(p, &allproc, p_list) if (!p_can(curp, p, P_CAN_SEE, NULL) && p->p_ucred->cr_uid == uap->who && p->p_nice < low) low = p->p_nice; + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); break; default: @@ -185,12 +187,14 @@ setpriority(curp, uap) case PRIO_USER: if (uap->who == 0) uap->who = curp->p_ucred->cr_uid; + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); LIST_FOREACH(p, &allproc, p_list) if (p->p_ucred->cr_uid == uap->who && !p_can(curp, p, P_CAN_SEE, NULL)) { error = donice(curp, p, uap->prio); found++; } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); break; default: |
