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fs: nfsd: nfs4state.c: Use built-in RCU list checking

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list_for_each_entry_rcu() has built-in RCU and lock checking.

Pass cond argument to list_for_each_entry_rcu() to silence
false lockdep warning when  CONFIG_PROVE_RCU_LIST is enabled
by default.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Madhuparna Bhowmik 2020-02-13 20:33:31 +05:30 committed by Chuck Lever
parent c0fb23f867
commit 36a8049181
1 changed files with 2 additions and 1 deletions
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3
fs/nfsd/nfs4state.c
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@ -4343,7 +4343,8 @@ find_file_locked(struct knfsd_fh *fh, unsigned int hashval)
{
struct nfs4_file *fp;
hlist_for_each_entry_rcu(fp, &file_hashtbl[hashval], fi_hash) {
hlist_for_each_entry_rcu(fp, &file_hashtbl[hashval], fi_hash,
lockdep_is_held(&state_lock)) {
if (fh_match(&fp->fi_fhandle, fh)) {
if (refcount_inc_not_zero(&fp->fi_ref))
return fp;