diff options
Diffstat (limited to 'lib/namei.c')
| -rw-r--r-- | lib/namei.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/lib/namei.c b/lib/namei.c index b05f5c4..e8275a4 100644 --- a/lib/namei.c +++ b/lib/namei.c @@ -15,6 +15,14 @@ #include "erofs/print.h" #include "erofs/io.h" +static dev_t erofs_new_decode_dev(u32 dev) +{ + const unsigned int major = (dev & 0xfff00) >> 8; + const unsigned int minor = (dev & 0xff) | ((dev >> 12) & 0xfff00); + + return makedev(major, minor); +} + static int erofs_read_inode_from_disk(struct erofs_inode *vi) { int ret, ifmt; @@ -57,10 +65,13 @@ static int erofs_read_inode_from_disk(struct erofs_inode *vi) break; case S_IFCHR: case S_IFBLK: - return -EOPNOTSUPP; + vi->u.i_rdev = + erofs_new_decode_dev(le32_to_cpu(die->i_u.rdev)); + break; case S_IFIFO: case S_IFSOCK: - return -EOPNOTSUPP; + vi->u.i_rdev = 0; + break; default: goto bogusimode; } @@ -86,10 +97,13 @@ static int erofs_read_inode_from_disk(struct erofs_inode *vi) break; case S_IFCHR: case S_IFBLK: - return -EOPNOTSUPP; + vi->u.i_rdev = + erofs_new_decode_dev(le32_to_cpu(dic->i_u.rdev)); + break; case S_IFIFO: case S_IFSOCK: - return -EOPNOTSUPP; + vi->u.i_rdev = 0; + break; default: goto bogusimode; } |