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path: root/fs/jfs/jfs_imap.c
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Diffstat (limited to 'fs/jfs/jfs_imap.c')
-rw-r--r--fs/jfs/jfs_imap.c50
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);