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lib9p: restore previous behaviour of fd group sharing

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it appears that too many fileservers rely on the fileserver
process sharing the filedescriptors with children of the
caller to postmntsrv() or threadpostmntsrv().

restoring previous behaviour for now.
This commit is contained in:
cinap_lenrek 2020-03-08 05:52:23 +01:00
parent 59fdb3a12c
commit 5826140ce3
1 changed files with 9 additions and 2 deletions
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11
sys/src/lib9p/post.c
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@ -23,7 +23,10 @@ _postmountsrv(Srv *s, char *name, char *mtpt, int flag)
if(_forker == nil)
sysfatal("no forker");
_forker(postproc, s, RFNAMEG|RFFDG|RFNOTEG);
_forker(postproc, s, RFNAMEG|RFNOTEG);
rfork(RFFDG);
rendezvous(0, 0);
close(s->infd);
if(s->infd != s->outfd)
@ -52,7 +55,10 @@ _postsharesrv(Srv *s, char *name, char *mtpt, char *desc)
if(_forker == nil)
sysfatal("no forker");
_forker(postproc, s, RFNAMEG|RFFDG|RFNOTEG);
_forker(postproc, s, RFNAMEG|RFNOTEG);
rfork(RFFDG);
rendezvous(0, 0);
close(s->infd);
if(s->infd != s->outfd)
@ -72,6 +78,7 @@ postproc(void *v)
Srv *s;
s = v;
rendezvous(0, 0);
close(s->srvfd);
srv(s);
}