This is part of a longer set of changes to clean up the last remaining
bits for the y2038 conversion. In XFS, three distinct problems need to
be addressed:
1. The use of time_t in kernel sources -- I'm in the process
of removing all of them so we can remove the definition itself,
making it harder to write new y2038-unsafe code. This part is
trivially done as a side-effect of the other two.
2. The use of time_t in a user API header for ioctls. When
building against a new 32-bit libc with 64-bit time_t, the structures
no longer match and we get incorrect data from ioctls. Unfortunately,
there is no good way to fix XFS_IOC_FSBULKSTAT, I considered different
approaches and in the end came up with three variants that are all
part of this series. The idea is to pick just one of course.
3. On-disk timestamps hitting the y2038 limit. This applies to both
inode timestamps and quota data. Both are extended to 40 bits,
with the minimum timestamp still being year 1902, and the maximum
getting extended from 2038 to 36744.
Please review and let me know which of ioctl API changes makes the
most sense. I have not done any actual runtime testing on the patches,
so this is clearly too late for the next merge window, but I hope to
get it all merged for v5.6.
Arnd
Arnd Bergmann (5):
xfs: [variant A] avoid time_t in user api
xfs: [variant B] add time64 version of xfs_bstat
xfs: [variant C] avoid i386-misaligned xfs_bstat
xfs: extend inode format for 40-bit timestamps
xfs: use 40-bit quota time limits
fs/xfs/libxfs/xfs_dquot_buf.c | 6 +-
fs/xfs/libxfs/xfs_format.h | 11 +-
fs/xfs/libxfs/xfs_fs.h | 37 +++++-
fs/xfs/libxfs/xfs_inode_buf.c | 28 +++--
fs/xfs/libxfs/xfs_inode_buf.h | 1 +
fs/xfs/libxfs/xfs_log_format.h | 6 +-
fs/xfs/libxfs/xfs_trans_inode.c | 3 +-
fs/xfs/xfs_dquot.c | 29 +++--
fs/xfs/xfs_inode.c | 3 +-
fs/xfs/xfs_inode_item.c | 10 +-
fs/xfs/xfs_ioctl.c | 195 +++++++++++++++++++++++++++++++-
fs/xfs/xfs_ioctl.h | 12 ++
fs/xfs/xfs_ioctl32.c | 160 +++++---------------------
fs/xfs/xfs_ioctl32.h | 26 ++---
fs/xfs/xfs_iops.c | 3 +-
fs/xfs/xfs_itable.c | 2 +-
fs/xfs/xfs_qm.c | 18 ++-
fs/xfs/xfs_qm.h | 6 +-
fs/xfs/xfs_qm_syscalls.c | 16 ++-
fs/xfs/xfs_quotaops.c | 6 +-
fs/xfs/xfs_super.c | 2 +-
fs/xfs/xfs_trans_dquot.c | 17 ++-
22 files changed, 387 insertions(+), 210 deletions(-)
--
2.20.0
