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| author | jhb <jhb@FreeBSD.org> | 2001-04-24 00:51:53 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-04-24 00:51:53 +0000 |
| commit | 9c03a8ae91e06e47f0c59996ef0e2300e231e101 (patch) | |
| tree | ec00c764b1eb58ed4297070edb5806ffd7ca4765 /sys/fs/procfs/procfs_subr.c | |
| parent | 383dd0a2656889604bb7eb71b993875024ddd832 (diff) | |
| download | FreeBSD-src-9c03a8ae91e06e47f0c59996ef0e2300e231e101.zip FreeBSD-src-9c03a8ae91e06e47f0c59996ef0e2300e231e101.tar.gz | |
Change the pfind() and zpfind() functions to lock the process that they
find before releasing the allproc lock and returning.
Reviewed by: -smp, dfr, jake
Diffstat (limited to 'sys/fs/procfs/procfs_subr.c')
| -rw-r--r-- | sys/fs/procfs/procfs_subr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/fs/procfs/procfs_subr.c b/sys/fs/procfs/procfs_subr.c index 035eb75..b960b13 100644 --- a/sys/fs/procfs/procfs_subr.c +++ b/sys/fs/procfs/procfs_subr.c @@ -252,11 +252,13 @@ procfs_rw(ap) int rtval; p = PFIND(pfs->pfs_pid); - if (p == 0) + if (p == NULL) return (EINVAL); + PROC_UNLOCK(p); if (p->p_pid == 1 && securelevel > 0 && uio->uio_rw == UIO_WRITE) return (EACCES); + mp_fixme("pfs_lockowner needs a lock"); while (pfs->pfs_lockowner) { tsleep(&pfs->pfs_lockowner, PRIBIO, "pfslck", 0); } |
