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| author | dillon <dillon@FreeBSD.org> | 2001-09-01 03:04:31 +0000 |
|---|---|---|
| committer | dillon <dillon@FreeBSD.org> | 2001-09-01 03:04:31 +0000 |
| commit | d1a6cbe1d59ffdd8715479fc5ceb20e567812005 (patch) | |
| tree | 6e2be2d0ad774719f30ae9d248628c0f48614db6 /sys/kern/kern_exec.c | |
| parent | 5610a6ae63a163468769d8b1400a386115b53ddf (diff) | |
| download | FreeBSD-src-d1a6cbe1d59ffdd8715479fc5ceb20e567812005.zip FreeBSD-src-d1a6cbe1d59ffdd8715479fc5ceb20e567812005.tar.gz | |
Pushdown Giant for acct(), kqueue(), kevent(), execve(), fork(),
vfork(), rfork(), jail().
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index c2e47d4..90a4f4c 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -98,6 +98,8 @@ struct execve_args { /* * execve() system call. + * + * MPSAFE */ int execve(p, uap) @@ -133,6 +135,8 @@ execve(p, uap) imgp->ps_strings = 0; imgp->auxarg_size = 0; + mtx_lock(&Giant); + /* * Allocate temporary demand zeroed space for argument and * environment strings @@ -445,17 +449,18 @@ exec_fail_dealloc: } if (error == 0) - return (0); + goto done2; exec_fail: if (imgp->vmspace_destroyed) { /* sorry, no more process anymore. exit gracefully */ exit1(p, W_EXITCODE(0, SIGABRT)); /* NOT REACHED */ - return(0); - } else { - return(error); - } + error = 0; + } +done2: + mtx_unlock(&Giant); + return(error); } int |
