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nfsd-6.7 fixes:

Browse source 
- Fix another regression in the NFSD administrative API
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Merge tag 'nfsd-6.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fix from Chuck Lever:

 - Fix another regression in the NFSD administrative API

* tag 'nfsd-6.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: drop the nfsd_put helper
This commit is contained in:
Linus Torvalds 2024-01-05 13:12:29 -08:00
parent a4ab2706bb 64e6304169
commit 0d3ac66ed8
2 changed files with 17 additions and 21 deletions
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31
fs/nfsd/nfsctl.c
View file

@ -693,6 +693,7 @@ static ssize_t __write_ports_addfd(char *buf, struct net *net, const struct cred
char *mesg = buf;
int fd, err;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
struct svc_serv *serv;
err = get_int(&mesg, &fd);
if (err != 0 || fd < 0)
@ -703,15 +704,15 @@ static ssize_t __write_ports_addfd(char *buf, struct net *net, const struct cred
if (err != 0)
return err;
err = svc_addsock(nn->nfsd_serv, net, fd, buf, SIMPLE_TRANSACTION_LIMIT, cred);
serv = nn->nfsd_serv;
err = svc_addsock(serv, net, fd, buf, SIMPLE_TRANSACTION_LIMIT, cred);
if (err < 0 && !nn->nfsd_serv->sv_nrthreads && !nn->keep_active)
if (err < 0 && !serv->sv_nrthreads && !nn->keep_active)
nfsd_last_thread(net);
else if (err >= 0 &&
!nn->nfsd_serv->sv_nrthreads && !xchg(&nn->keep_active, 1))
svc_get(nn->nfsd_serv);
else if (err >= 0 && !serv->sv_nrthreads && !xchg(&nn->keep_active, 1))
svc_get(serv);
nfsd_put(net);
svc_put(serv);
return err;
}
@ -725,6 +726,7 @@ static ssize_t __write_ports_addxprt(char *buf, struct net *net, const struct cr
struct svc_xprt *xprt;
int port, err;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
struct svc_serv *serv;
if (sscanf(buf, "%15s %5u", transport, &port) != 2)
return -EINVAL;
@ -737,32 +739,33 @@ static ssize_t __write_ports_addxprt(char *buf, struct net *net, const struct cr
if (err != 0)
return err;
err = svc_xprt_create(nn->nfsd_serv, transport, net,
serv = nn->nfsd_serv;
err = svc_xprt_create(serv, transport, net,
PF_INET, port, SVC_SOCK_ANONYMOUS, cred);
if (err < 0)
goto out_err;
err = svc_xprt_create(nn->nfsd_serv, transport, net,
err = svc_xprt_create(serv, transport, net,
PF_INET6, port, SVC_SOCK_ANONYMOUS, cred);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_close;
if (!nn->nfsd_serv->sv_nrthreads && !xchg(&nn->keep_active, 1))
svc_get(nn->nfsd_serv);
if (!serv->sv_nrthreads && !xchg(&nn->keep_active, 1))
svc_get(serv);
nfsd_put(net);
svc_put(serv);
return 0;
out_close:
xprt = svc_find_xprt(nn->nfsd_serv, transport, net, PF_INET, port);
xprt = svc_find_xprt(serv, transport, net, PF_INET, port);
if (xprt != NULL) {
svc_xprt_close(xprt);
svc_xprt_put(xprt);
}
out_err:
if (!nn->nfsd_serv->sv_nrthreads && !nn->keep_active)
if (!serv->sv_nrthreads && !nn->keep_active)
nfsd_last_thread(net);
nfsd_put(net);
svc_put(serv);
return err;
}

7
fs/nfsd/nfsd.h
View file

@ -113,13 +113,6 @@ int nfsd_pool_stats_open(struct inode *, struct file *);
int nfsd_pool_stats_release(struct inode *, struct file *);
void nfsd_shutdown_threads(struct net *net);
static inline void nfsd_put(struct net *net)
{
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
svc_put(nn->nfsd_serv);
}
bool i_am_nfsd(void);
struct nfsdfs_client {