userns: Convert ubifs to use kuid/kgid

Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

7 files changed, 12 insertions, 13 deletions

diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index bc4f94b2870..969489e478b 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -272,8 +272,8 @@ long long ubifs_calc_available(const struct ubifs_info *c, int min_idx_lebs)
  */
 static int can_use_rp(struct ubifs_info *c)
 {
-        if (current_fsuid() == c->rp_uid || capable(CAP_SYS_RESOURCE) ||
-            (c->rp_gid != 0 && in_group_p(c->rp_gid)))
+        if (uid_eq(current_fsuid(), c->rp_uid) || capable(CAP_SYS_RESOURCE) ||
+            (!gid_eq(c->rp_gid, GLOBAL_ROOT_GID) && in_group_p(c->rp_gid)))
                 return 1;
         return 0;
 }
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index bb3167257aa..340d1afc130 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -243,8 +243,8 @@ void ubifs_dump_inode(struct ubifs_info *c, const struct inode *inode)
         printk(KERN_ERR "\tsize           %llu\n",
                (unsigned long long)i_size_read(inode));
         printk(KERN_ERR "\tnlink          %u\n", inode->i_nlink);
-        printk(KERN_ERR "\tuid            %u\n", (unsigned int)inode->i_uid);
-        printk(KERN_ERR "\tgid            %u\n", (unsigned int)inode->i_gid);
+        printk(KERN_ERR "\tuid            %u\n", (unsigned int)i_uid_read(inode));
+        printk(KERN_ERR "\tgid            %u\n", (unsigned int)i_gid_read(inode));
         printk(KERN_ERR "\tatime          %u.%u\n",
                (unsigned int)inode->i_atime.tv_sec,
                (unsigned int)inode->i_atime.tv_nsec);
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 12c0f154ca8..afaad07f3b2 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -469,8 +469,8 @@ static void pack_inode(struct ubifs_info *c, struct ubifs_ino_node *ino,
         ino->ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
         ino->mtime_sec  = cpu_to_le64(inode->i_mtime.tv_sec);
         ino->mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
-        ino->uid   = cpu_to_le32(inode->i_uid);
-        ino->gid   = cpu_to_le32(inode->i_gid);
+        ino->uid   = cpu_to_le32(i_uid_read(inode));
+        ino->gid   = cpu_to_le32(i_gid_read(inode));
         ino->mode  = cpu_to_le32(inode->i_mode);
         ino->flags = cpu_to_le32(ui->flags);
         ino->size  = cpu_to_le64(ui->ui_size);
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 15e2fc5aa60..52c21f4190f 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -611,8 +611,8 @@ int ubifs_read_superblock(struct ubifs_info *c)
         c->fanout        = le32_to_cpu(sup->fanout);
         c->lsave_cnt     = le32_to_cpu(sup->lsave_cnt);
         c->rp_size       = le64_to_cpu(sup->rp_size);
-        c->rp_uid        = le32_to_cpu(sup->rp_uid);
-        c->rp_gid        = le32_to_cpu(sup->rp_gid);
+        c->rp_uid        = make_kuid(&init_user_ns, le32_to_cpu(sup->rp_uid));
+        c->rp_gid        = make_kgid(&init_user_ns, le32_to_cpu(sup->rp_gid));
         sup_flags        = le32_to_cpu(sup->flags);
         if (!c->mount_opts.override_compr)
                 c->default_compr = le16_to_cpu(sup->default_compr);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 1c766c39c03..f39bad9db61 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -130,8 +130,8 @@ struct inode *ubifs_iget(struct super_block *sb, unsigned long inum)
 
         inode->i_flags |= (S_NOCMTIME | S_NOATIME);
         set_nlink(inode, le32_to_cpu(ino->nlink));
-        inode->i_uid   = le32_to_cpu(ino->uid);
-        inode->i_gid   = le32_to_cpu(ino->gid);
+        i_uid_write(inode, le32_to_cpu(ino->uid));
+        i_gid_write(inode, le32_to_cpu(ino->gid));
         inode->i_atime.tv_sec  = (int64_t)le64_to_cpu(ino->atime_sec);
         inode->i_atime.tv_nsec = le32_to_cpu(ino->atime_nsec);
         inode->i_mtime.tv_sec  = (int64_t)le64_to_cpu(ino->mtime_sec);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 1e5a08623d1..64f2367c2f4 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1426,8 +1426,8 @@ struct ubifs_info {
 
         long long rp_size;
         long long report_rp_size;
-        uid_t rp_uid;
-        gid_t rp_gid;
+        kuid_t rp_uid;
+        kgid_t rp_gid;
 
         /* The below fields are used only during mounting and re-mounting */
         unsigned int empty:1;
diff --git a/init/Kconfig b/init/Kconfig
index d88f945fa61..21adc1c997a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -939,7 +939,6 @@ config UIDGID_CONVERTED
         depends on NFSD = n
         depends on NFS_FS = n
         depends on OCFS2_FS = n
-        depends on UBIFS_FS = n
         depends on UDF_FS = n
         depends on UFS_FS = n
         depends on XFS_FS = n