nfsd-6.10 fixes:

- Due to a late review, revert and re-fix a recent crasher fix
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Merge tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:

 - Due to a late review, revert and re-fix a recent crasher fix

* tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  Revert "nfsd: fix oops when reading pool_stats before server is started"
  nfsd: initialise nfsd_info.mutex early.
This commit is contained in:
Linus Torvalds 2024-06-28 09:32:33 -07:00
commit 6c0483dbfe
3 changed files with 5 additions and 6 deletions

View file

@ -2169,6 +2169,8 @@ static __net_init int nfsd_net_init(struct net *net)
nn->nfsd_svcstats.program = &nfsd_program;
nn->nfsd_versions = NULL;
nn->nfsd4_minorversions = NULL;
nn->nfsd_info.mutex = &nfsd_mutex;
nn->nfsd_serv = NULL;
nfsd4_init_leases_net(nn);
get_random_bytes(&nn->siphash_key, sizeof(nn->siphash_key));
seqlock_init(&nn->writeverf_lock);

View file

@ -672,7 +672,6 @@ int nfsd_create_serv(struct net *net)
return error;
}
spin_lock(&nfsd_notifier_lock);
nn->nfsd_info.mutex = &nfsd_mutex;
nn->nfsd_serv = serv;
spin_unlock(&nfsd_notifier_lock);

View file

@ -1421,13 +1421,12 @@ static void *svc_pool_stats_start(struct seq_file *m, loff_t *pos)
dprintk("svc_pool_stats_start, *pidx=%u\n", pidx);
if (!si->serv)
return NULL;
mutex_lock(si->mutex);
if (!pidx)
return SEQ_START_TOKEN;
if (!si->serv)
return NULL;
return pidx > si->serv->sv_nrpools ? NULL
: &si->serv->sv_pools[pidx - 1];
}
@ -1459,8 +1458,7 @@ static void svc_pool_stats_stop(struct seq_file *m, void *p)
{
struct svc_info *si = m->private;
if (si->serv)
mutex_unlock(si->mutex);
mutex_unlock(si->mutex);
}
static int svc_pool_stats_show(struct seq_file *m, void *p)