From 11a8b9270e16e36d5fb607ba4b60db2958b7c625 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Tue, 31 Oct 2017 15:54:32 -0500 Subject: userns: Don't special case a count of 0 We can always use a count of 1 so there is no reason to have a special case of a count of 0. Signed-off-by: Eric W. Biederman --- kernel/user_namespace.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'kernel/user_namespace.c') diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index 5fd2d53dbc75..c9904ee084c4 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -232,11 +232,7 @@ static int cmp_map_id(const void *k, const void *e) const struct idmap_key *key = k; const struct uid_gid_extent *el = e; - /* handle map_id_range_down() */ - if (key->count) - id2 = key->id + key->count - 1; - else - id2 = key->id; + id2 = key->id + key->count - 1; /* handle map_id_{down,up}() */ if (key->map_up) @@ -362,7 +358,7 @@ static u32 map_id_down(struct uid_gid_map *map, u32 id) if (extents <= UID_GID_MAP_MAX_BASE_EXTENTS) return map_id_down_base(map, id); - return map_id_range_down_max(map, id, 0); + return map_id_range_down_max(map, id, 1); } /** @@ -404,7 +400,7 @@ static u32 map_id_up_max(struct uid_gid_map *map, u32 id) struct idmap_key key; key.map_up = true; - key.count = 0; + key.count = 1; key.id = id; extents = map->nr_extents; -- cgit v1.2.3