• Arnd Bergmann's avatar
    ext4: super: extend timestamps to 40 bits · 6a0678a7
    Arnd Bergmann authored
    The inode timestamps use 34 bits in ext4, but the various timestamps in
    the superblock are limited to 32 bits. If every user accesses these as
    'unsigned', then this is good until year 2106, but it seems better to
    extend this a bit further in the process of removing the deprecated
    get_seconds() function.
    
    This adds another byte for each timestamp in the superblock, making
    them long enough to store timestamps beyond what is in the inodes,
    which seems good enough here (in ocfs2, they are already 64-bit wide,
    which is appropriate for a new layout).
    
    I did not modify e2fsprogs, which obviously needs the same change to
    actually interpret future timestamps correctly.
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
    6a0678a7
super.c 170 KB