svn commit: r320408 - head/sys/fs/ext2fs

[Pedro F. Giffuni]

Author: pfg
Date: Tue Jun 27 15:07:19 2017
New Revision: 320408
URL: https://svnweb.freebsd.org/changeset/base/320408

Log:
  ext2fs: Support e2di_uid_high and e2di_gid_high.
  
  The fields exist on all versions of the filesystem and using them is a mount
  option on linux. For FreeBSD, the corresponding i_uid and i_gid are always
  long enough so use them by default.
  
  Reviewed by:	Fedor Uporov
  MFC after:	1 month
  Differential Revision:	https://reviews.freebsd.org/D11354

Modified:
  head/sys/fs/ext2fs/ext2_inode_cnv.c

Modified: head/sys/fs/ext2fs/ext2_inode_cnv.c
==============================================================================
--- head/sys/fs/ext2fs/ext2_inode_cnv.c	Tue Jun 27 14:39:00 2017	(r320407)
+++ head/sys/fs/ext2fs/ext2_inode_cnv.c	Tue Jun 27 15:07:19 2017	(r320408)
@@ -124,6 +124,8 @@ ext2_ei2i(struct ext2fs_dinode *ei, struct inode *ip)
 	ip->i_gen = ei->e2di_gen;
 	ip->i_uid = ei->e2di_uid;
 	ip->i_gid = ei->e2di_gid;
+	ip->i_uid |= (uint32_t)ei->e2di_uid_high << 16;
+	ip->i_gid |= (uint32_t)ei->e2di_gid_high << 16;
 	/* XXX use memcpy */
 	for (i = 0; i < EXT2_NDADDR; i++)
 		ip->i_db[i] = ei->e2di_blocks[i];
@@ -170,8 +172,10 @@ ext2_i2ei(struct inode *ip, struct ext2fs_dinode *ei)
 	ei->e2di_facl = ip->i_facl & 0xffffffff;
 	ei->e2di_facl_high = ip->i_facl >> 32 & 0xffff;
 	ei->e2di_gen = ip->i_gen;
-	ei->e2di_uid = ip->i_uid;
-	ei->e2di_gid = ip->i_gid;
+	ei->e2di_uid = ip->i_uid & 0xffff;
+	ei->e2di_uid_high = ip->i_uid >> 16 & 0xffff;
+	ei->e2di_gid = ip->i_gid & 0xffff;
+	ei->e2di_gid_high = ip->i_gid >> 16 & 0xffff;
 	/* XXX use memcpy */
 	for (i = 0; i < EXT2_NDADDR; i++)
 		ei->e2di_blocks[i] = ip->i_db[i];