JFS: add uid, gid, and umask mount options

OS/2 doesn't initialize the uid, gid, or unix-style permission bits.  The
uid, gid, & umask mount options perform pretty much like those for the fat
file system, overriding what is stored on disk.  This is useful for users
sharing the file system with OS/2.

I implemented a little feature so that if you mask the execute bit, it
will be re-enabled on directories when the appropriate read bit is unmasked.
I didn't want to implement an fmask & dmask option.

Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index e0b6fdab200c..e2281300979c 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -183,6 +183,9 @@ cleanup:
                 posix_acl_release(acl);
         } else
                 inode->i_mode &= ~current->fs->umask;
+        
+        JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
+                               inode->i_mode;
 
         return rc;
 }