NFS: Don't use readdirplus data if the page cache is invalid (57fa76f2) · Commits · e / devices / android_kernel_xiaomi_sm6125

fs/nfs/dir.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -1110,6 +1110,7 @@ static struct dentry nfs_readdir_lookup(nfs_readdir_descriptor_t desc)
		.len = entry->len,
		};
		struct inode *inode;
		unsigned long verf = nfs_save_change_attribute(dir);

		switch (name.len) {
		case 2:
		@@ -1120,6 +1121,14 @@ static struct dentry nfs_readdir_lookup(nfs_readdir_descriptor_t desc)
		if (name.name[0] == '.')
		return dget(parent);
		}

		spin_lock(&dir->i_lock);
		if (NFS_I(dir)->cache_validity & NFS_INO_INVALID_DATA) {
		spin_unlock(&dir->i_lock);
		return NULL;
		}
		spin_unlock(&dir->i_lock);

		name.hash = full_name_hash(name.name, name.len);
		dentry = d_lookup(parent, &name);
		if (dentry != NULL) {
		@@ -1161,7 +1170,7 @@ static struct dentry nfs_readdir_lookup(nfs_readdir_descriptor_t desc)
		}

		out_renew:
		nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
		nfs_set_verifier(dentry, verf);
		return dentry;
		}