userns: Convert jfs to use kuid/kgid where appropriate (c18cdc1a) · Commits · e / devices / android_kernel_xiaomi_markw

fs/jfs/file.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -108,8 +108,8 @@ int jfs_setattr(struct dentry dentry, struct iattr iattr)

		if (is_quota_modification(inode, iattr))
		dquot_initialize(inode);
		if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) \|\|
		(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
		if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) \|\|
		(iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) {
		rc = dquot_transfer(inode, iattr);
		if (rc)
		return rc;

+12 −10

Original line number	Diff line number	Diff line
		@@ -3078,15 +3078,15 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
		}
		set_nlink(ip, le32_to_cpu(dip->di_nlink));

		jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
		if (sbi->uid == -1)
		jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid));
		if (!uid_valid(sbi->uid))
		ip->i_uid = jfs_ip->saved_uid;
		else {
		ip->i_uid = sbi->uid;
		}

		jfs_ip->saved_gid = le32_to_cpu(dip->di_gid);
		if (sbi->gid == -1)
		jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid));
		if (!gid_valid(sbi->gid))
		ip->i_gid = jfs_ip->saved_gid;
		else {
		ip->i_gid = sbi->gid;
		@@ -3150,14 +3150,16 @@ static void copy_to_dinode(struct dinode * dip, struct inode *ip)
		dip->di_size = cpu_to_le64(ip->i_size);
		dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
		dip->di_nlink = cpu_to_le32(ip->i_nlink);
		if (sbi->uid == -1)
		dip->di_uid = cpu_to_le32(ip->i_uid);
		if (!uid_valid(sbi->uid))
		dip->di_uid = cpu_to_le32(i_uid_read(ip));
		else
		dip->di_uid = cpu_to_le32(jfs_ip->saved_uid);
		if (sbi->gid == -1)
		dip->di_gid = cpu_to_le32(ip->i_gid);
		dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns,
		jfs_ip->saved_uid));
		if (!gid_valid(sbi->gid))
		dip->di_gid = cpu_to_le32(i_gid_read(ip));
		else
		dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
		dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns,
		jfs_ip->saved_gid));
		jfs_get_inode_flags(jfs_ip);
		/*
		* mode2 is only needed for storing the higher order bits.

+4 −4

Original line number	Diff line number	Diff line
		@@ -38,8 +38,8 @@
		struct jfs_inode_info {
		int fileset; /* fileset number (always 16)*/
		uint mode2; /* jfs-specific mode */
		uint saved_uid; /* saved for uid mount option */
		uint saved_gid; /* saved for gid mount option */
		kuid_t saved_uid; /* saved for uid mount option */
		kgid_t saved_gid; /* saved for gid mount option */
		pxd_t ixpxd; /* inode extent descriptor */
		dxd_t acl; /* dxd describing acl */
		dxd_t ea; /* dxd describing ea */
		@@ -192,8 +192,8 @@ struct jfs_sb_info {
		uint state; /* mount/recovery state */
		unsigned long flag; /* mount time flags */
		uint p_state; /* state prior to going no integrity */
		uint uid; /* uid to override on-disk uid */
		uint gid; /* gid to override on-disk gid */
		kuid_t uid; /* uid to override on-disk uid */
		kgid_t gid; /* gid to override on-disk gid */
		uint umask; /* umask to override on-disk umask */
		};

+15 −7

Original line number	Diff line number	Diff line
		@@ -321,13 +321,19 @@ static int parse_options(char options, struct super_block sb, s64 *newLVSize,
		case Opt_uid:
		{
		char *uid = args[0].from;
		sbi->uid = simple_strtoul(uid, &uid, 0);
		uid_t val = simple_strtoul(uid, &uid, 0);
		sbi->uid = make_kuid(current_user_ns(), val);
		if (!uid_valid(sbi->uid))
		goto cleanup;
		break;
		}
		case Opt_gid:
		{
		char *gid = args[0].from;
		sbi->gid = simple_strtoul(gid, &gid, 0);
		gid_t val = simple_strtoul(gid, &gid, 0);
		sbi->gid = make_kgid(current_user_ns(), val);
		if (!gid_valid(sbi->gid))
		goto cleanup;
		break;
		}
		case Opt_umask:
		@@ -443,7 +449,9 @@ static int jfs_fill_super(struct super_block sb, void data, int silent)
		sb->s_fs_info = sbi;
		sb->s_max_links = JFS_LINK_MAX;
		sbi->sb = sb;
		sbi->uid = sbi->gid = sbi->umask = -1;
		sbi->uid = INVALID_UID;
		sbi->gid = INVALID_GID;
		sbi->umask = -1;

		/* initialize the mount flag and determine the default error handler */
		flag = JFS_ERR_REMOUNT_RO;
		@@ -617,10 +625,10 @@ static int jfs_show_options(struct seq_file seq, struct dentry root)
		{
		struct jfs_sb_info *sbi = JFS_SBI(root->d_sb);

		if (sbi->uid != -1)
		seq_printf(seq, ",uid=%d", sbi->uid);
		if (sbi->gid != -1)
		seq_printf(seq, ",gid=%d", sbi->gid);
		if (uid_valid(sbi->uid))
		seq_printf(seq, ",uid=%d", from_kuid(&init_user_ns, sbi->uid));
		if (gid_valid(sbi->gid))
		seq_printf(seq, ",gid=%d", from_kgid(&init_user_ns, sbi->gid));
		if (sbi->umask != -1)
		seq_printf(seq, ",umask=%03o", sbi->umask);
		if (sbi->flag & JFS_NOINTEGRITY)

+0 −1