diff options
Diffstat (limited to 'fs/jfs/jfs_imap.c')
| -rw-r--r-- | fs/jfs/jfs_imap.c | 50 |
1 files changed, 44 insertions, 6 deletions
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c index b62a048b6881..ccbe60aff83d 100644 --- a/fs/jfs/jfs_imap.c +++ b/fs/jfs/jfs_imap.c @@ -3074,14 +3074,40 @@ static void duplicateIXtree(struct super_block *sb, s64 blkno, static int copy_from_dinode(struct dinode * dip, struct inode *ip) { struct jfs_inode_info *jfs_ip = JFS_IP(ip); + struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); jfs_ip->fileset = le32_to_cpu(dip->di_fileset); jfs_ip->mode2 = le32_to_cpu(dip->di_mode); ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; + if (sbi->umask != -1) { + ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask); + /* For directories, add x permission if r is allowed by umask */ + if (S_ISDIR(ip->i_mode)) { + if (ip->i_mode & 0400) + ip->i_mode |= 0100; + if (ip->i_mode & 0040) + ip->i_mode |= 0010; + if (ip->i_mode & 0004) + ip->i_mode |= 0001; + } + } ip->i_nlink = le32_to_cpu(dip->di_nlink); - ip->i_uid = le32_to_cpu(dip->di_uid); - ip->i_gid = le32_to_cpu(dip->di_gid); + + jfs_ip->saved_uid = le32_to_cpu(dip->di_uid); + if (sbi->uid == -1) + 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) + ip->i_gid = jfs_ip->saved_gid; + else { + ip->i_gid = sbi->gid; + } + ip->i_size = le64_to_cpu(dip->di_size); ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); @@ -3132,21 +3158,33 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip) static void copy_to_dinode(struct dinode * dip, struct inode *ip) { struct jfs_inode_info *jfs_ip = JFS_IP(ip); + struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); dip->di_fileset = cpu_to_le32(jfs_ip->fileset); - dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp); + dip->di_inostamp = cpu_to_le32(sbi->inostamp); dip->di_number = cpu_to_le32(ip->i_ino); dip->di_gen = cpu_to_le32(ip->i_generation); 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); - dip->di_uid = cpu_to_le32(ip->i_uid); - dip->di_gid = cpu_to_le32(ip->i_gid); + if (sbi->uid == -1) + dip->di_uid = cpu_to_le32(ip->i_uid); + else + dip->di_uid = cpu_to_le32(jfs_ip->saved_uid); + if (sbi->gid == -1) + dip->di_gid = cpu_to_le32(ip->i_gid); + else + dip->di_gid = cpu_to_le32(jfs_ip->saved_gid); /* * mode2 is only needed for storing the higher order bits. * Trust i_mode for the lower order ones */ - dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | ip->i_mode); + if (sbi->umask == -1) + dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | + ip->i_mode); + else /* Leave the original permissions alone */ + dip->di_mode = cpu_to_le32(jfs_ip->mode2); + dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime.tv_sec); dip->di_atime.tv_nsec = cpu_to_le32(ip->i_atime.tv_nsec); dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime.tv_sec); |