• Linus Torvalds's avatar
    Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground · cfb82e1d
    Linus Torvalds authored
    Pull y2038 vfs updates from Arnd Bergmann:
     "Add inode timestamp clamping.
    
      This series from Deepa Dinamani adds a per-superblock minimum/maximum
      timestamp limit for a file system, and clamps timestamps as they are
      written, to avoid random behavior from integer overflow as well as
      having different time stamps on disk vs in memory.
    
      At mount time, a warning is now printed for any file system that can
      represent current timestamps but not future timestamps more than 30
      years into the future, similar to the arbitrary 30 year limit that was
      added to settimeofday().
    
      This was picked as a compromise to warn users to migrate to other file
      systems (e.g. ext4 instead of ext3) when they need the file system to
      survive beyond 2038 (or similar limits in other file systems), but not
      get in the way of normal usage"
    
    * tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
      ext4: Reduce ext4 timestamp warnings
      isofs: Initialize filesystem timestamp ranges
      pstore: fs superblock limits
      fs: omfs: Initialize filesystem timestamp ranges
      fs: hpfs: Initialize filesystem timestamp ranges
      fs: ceph: Initialize filesystem timestamp ranges
      fs: sysv: Initialize filesystem timestamp ranges
      fs: affs: Initialize filesystem timestamp ranges
      fs: fat: Initialize filesystem timestamp ranges
      fs: cifs: Initialize filesystem timestamp ranges
      fs: nfs: Initialize filesystem timestamp ranges
      ext4: Initialize timestamps limits
      9p: Fill min and max timestamps in sb
      fs: Fill in max and min timestamps in superblock
      utimes: Clamp the timestamps before update
      mount: Add mount warning for impending timestamp expiry
      timestamp_truncate: Replace users of timespec64_trunc
      vfs: Add timestamp_truncate() api
      vfs: Add file timestamp range support
    cfb82e1d
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