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nfsd: just keep single lockd reference for nfsd

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Right now, nfsd keeps a lockd reference for each socket that it has
open. This is unnecessary and complicates the error handling on
startup and shutdown. Change it to just do a lockd_up when starting
the first nfsd thread just do a single lockd_down when taking down the
last nfsd thread. Because of the strange way the sv_count is handled
this requires an extra flag to tell whether the nfsd_serv holds a
reference for lockd or not.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton
2010-07-20 14:10:22 -04:00
committed by J. Bruce Fields
parent 628b368728
commit ac77efbe2b
2 changed files with 14 additions and 21 deletions
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10
fs/nfsd/nfsctl.c
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@@ -949,15 +949,8 @@ static ssize_t __write_ports_addfd(char *buf)
if (err != 0)
return err;
err = lockd_up();
if (err != 0) {
svc_destroy(nfsd_serv);
return err;
}
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
lockd_down();
svc_destroy(nfsd_serv);
return err;
}
@@ -982,9 +975,6 @@ static ssize_t __write_ports_delfd(char *buf)
if (nfsd_serv != NULL)
len = svc_sock_names(nfsd_serv, buf,
SIMPLE_TRANSACTION_LIMIT, toclose);
if (len >= 0)
lockd_down();
kfree(toclose);
return len;
}