From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> If the filesystem is case insensitive, then readdirplus can't help with cache misses, since it won't return case folded variants of the filename. Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> --- fs/nfs/dir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index e7942fbe3f50..a9098d5a9fc8 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -684,6 +684,8 @@ void nfs_readdir_record_entry_cache_miss(struct inode *dir) static void nfs_lookup_advise_force_readdirplus(struct inode *dir) { + if (nfs_server_capable(dir, NFS_CAP_CASE_INSENSITIVE)) + return; nfs_readdir_record_entry_cache_miss(dir); } -- 2.35.1