Messages in this thread Patch in this message | | | From | madhuparnabhowmik10@gmail ... | Subject | [PATCH] fs: nfsd: nfs4state.c: Use built-in RCU list checking | Date | Thu, 13 Feb 2020 20:33:31 +0530 |
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From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
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> --- fs/nfsd/nfs4state.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 369e574c5092..3a80721fe53d 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4295,7 +4295,8 @@ 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; -- 2.17.1
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