userns: Convert ext2 to use kuid/kgid where appropriate.

Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index a8cbe1bc6ad4..030c6d277e14 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -1193,8 +1193,9 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
         free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
         root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
         if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
-                sbi->s_resuid != current_fsuid() &&
-                (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
+                !uid_eq(sbi->s_resuid, current_fsuid()) &&
+                (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
+                 !in_group_p (sbi->s_resgid))) {
                 return 0;
         }
         return 1;