kernel_optimize_test/fs/nfs
Linus Torvalds 22b17db4ea y2038: core, driver and file system changes
These are updates to device drivers and file systems that for some reason
 or another were not included in the kernel in the previous y2038 series.
 
 I've gone through all users of time_t again to make sure the kernel is
 in a long-term maintainable state, replacing all remaining references
 to time_t with safe alternatives.
 
 Some related parts of the series were picked up into the nfsd, xfs,
 alsa and v4l2 trees. A final set of patches in linux-mm removes the now
 unused time_t/timeval/timespec types and helper functions after all five
 branches are merged for linux-5.6, ensuring that no new users get merged.
 
 As a result, linux-5.6, or my backport of the patches to 5.4 [1], should
 be the first release that can serve as a base for a 32-bit system designed
 to run beyond year 2038, with a few remaining caveats:
 
 - All user space must be compiled with a 64-bit time_t, which will be
   supported in the coming musl-1.2 and glibc-2.32 releases, along with
   installed kernel headers from linux-5.6 or higher.
 
 - Applications that use the system call interfaces directly need to be
   ported to use the time64 syscalls added in linux-5.1 in place of the
   existing system calls. This impacts most users of futex() and seccomp()
   as well as programming languages that have their own runtime environment
   not based on libc.
 
 - Applications that use a private copy of kernel uapi header files or
   their contents may need to update to the linux-5.6 version, in
   particular for sound/asound.h, xfs/xfs_fs.h, linux/input.h,
   linux/elfcore.h, linux/sockios.h, linux/timex.h and linux/can/bcm.h.
 
 - A few remaining interfaces cannot be changed to pass a 64-bit time_t
   in a compatible way, so they must be configured to use CLOCK_MONOTONIC
   times or (with a y2106 problem) unsigned 32-bit timestamps. Most
   importantly this impacts all users of 'struct input_event'.
 
 - All y2038 problems that are present on 64-bit machines also apply to
   32-bit machines. In particular this affects file systems with on-disk
   timestamps using signed 32-bit seconds: ext4 with ext3-style small
   inodes, ext2, xfs (to be fixed soon) and ufs.
 
 Changes since v1 [2]:
 
 - Add Acks I received
 - Rebase to v5.5-rc1, dropping patches that got merged already
 - Add NFS, XFS and the final three patches from another series
 - Rewrite etnaviv patches
 - Add one late revert to avoid an etnaviv regression
 
 [1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=y2038-endgame
 [2] https://lore.kernel.org/lkml/20191108213257.3097633-1-arnd@arndb.de/
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Merge tag 'y2038-drivers-for-v5.6-signed' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground

Pull y2038 updates from Arnd Bergmann:
 "Core, driver and file system changes

  These are updates to device drivers and file systems that for some
  reason or another were not included in the kernel in the previous
  y2038 series.

  I've gone through all users of time_t again to make sure the kernel is
  in a long-term maintainable state, replacing all remaining references
  to time_t with safe alternatives.

  Some related parts of the series were picked up into the nfsd, xfs,
  alsa and v4l2 trees. A final set of patches in linux-mm removes the
  now unused time_t/timeval/timespec types and helper functions after
  all five branches are merged for linux-5.6, ensuring that no new users
  get merged.

  As a result, linux-5.6, or my backport of the patches to 5.4 [1],
  should be the first release that can serve as a base for a 32-bit
  system designed to run beyond year 2038, with a few remaining caveats:

   - All user space must be compiled with a 64-bit time_t, which will be
     supported in the coming musl-1.2 and glibc-2.32 releases, along
     with installed kernel headers from linux-5.6 or higher.

   - Applications that use the system call interfaces directly need to
     be ported to use the time64 syscalls added in linux-5.1 in place of
     the existing system calls. This impacts most users of futex() and
     seccomp() as well as programming languages that have their own
     runtime environment not based on libc.

   - Applications that use a private copy of kernel uapi header files or
     their contents may need to update to the linux-5.6 version, in
     particular for sound/asound.h, xfs/xfs_fs.h, linux/input.h,
     linux/elfcore.h, linux/sockios.h, linux/timex.h and
     linux/can/bcm.h.

   - A few remaining interfaces cannot be changed to pass a 64-bit
     time_t in a compatible way, so they must be configured to use
     CLOCK_MONOTONIC times or (with a y2106 problem) unsigned 32-bit
     timestamps. Most importantly this impacts all users of 'struct
     input_event'.

   - All y2038 problems that are present on 64-bit machines also apply
     to 32-bit machines. In particular this affects file systems with
     on-disk timestamps using signed 32-bit seconds: ext4 with
     ext3-style small inodes, ext2, xfs (to be fixed soon) and ufs"

[1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=y2038-endgame

* tag 'y2038-drivers-for-v5.6-signed' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (21 commits)
  Revert "drm/etnaviv: reject timeouts with tv_nsec >= NSEC_PER_SEC"
  y2038: sh: remove timeval/timespec usage from headers
  y2038: sparc: remove use of struct timex
  y2038: rename itimerval to __kernel_old_itimerval
  y2038: remove obsolete jiffies conversion functions
  nfs: fscache: use timespec64 in inode auxdata
  nfs: fix timstamp debug prints
  nfs: use time64_t internally
  sunrpc: convert to time64_t for expiry
  drm/etnaviv: avoid deprecated timespec
  drm/etnaviv: reject timeouts with tv_nsec >= NSEC_PER_SEC
  drm/msm: avoid using 'timespec'
  hfs/hfsplus: use 64-bit inode timestamps
  hostfs: pass 64-bit timestamps to/from user space
  packet: clarify timestamp overflow
  tsacct: add 64-bit btime field
  acct: stop using get_seconds()
  um: ubd: use 64-bit time_t where possible
  xtensa: ISS: avoid struct timeval
  dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD
  ...
2020-01-29 14:55:47 -08:00
..
blocklayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
filelayout pNFS/filelayout: enable LAYOUTGET on OPEN 2019-09-24 16:28:38 -04:00
flexfilelayout pNFS/flexfiles: Don't time out requests on hard mounts 2019-08-26 15:31:29 -04:00
cache_lib.c
cache_lib.h
callback_proc.c NFSv4: nfs4_callback_getattr() should ignore revoked delegations 2019-11-03 21:28:45 -05:00
callback_xdr.c NFSv4: NFSv4 callbacks also support 64-bit timestamps 2019-11-03 21:28:44 -05:00
callback.c
callback.h NFSv4: NFSv4 callbacks also support 64-bit timestamps 2019-11-03 21:28:44 -05:00
client.c NFSv4.1: Don't rebind to the same source port when reconnecting to the server 2019-11-03 21:28:45 -05:00
delegation.c NFSv4: Handle NFS4ERR_OLD_STATEID in delegreturn 2019-11-03 21:28:46 -05:00
delegation.h NFSv4: Revoke the delegation on success in nfs4_delegreturn_done() 2019-11-03 21:28:46 -05:00
dir.c NFS Client Updates for Linux 5.3 2019-09-26 12:20:14 -07:00
direct.c NFS: Remove redundant mirror tracking in O_DIRECT 2019-10-09 11:45:59 -04:00
dns_resolve.c keys: Pass the network namespace into request_key mechanism 2019-06-27 23:02:12 +01:00
dns_resolve.h
export.c NFS: Add a tracepoint in nfs_fh_to_dentry() 2019-11-03 21:28:46 -05:00
file.c NFS: Return -ETXTBSY when attempting to write to a swapfile 2019-11-18 10:43:24 +01:00
fscache-index.c nfs: fscache: use timespec64 in inode auxdata 2019-12-18 18:07:33 +01:00
fscache.c nfs: fscache: use timespec64 in inode auxdata 2019-12-18 18:07:33 +01:00
fscache.h nfs: fscache: use timespec64 in inode auxdata 2019-12-18 18:07:33 +01:00
getroot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inode.c NFS: Convert struct nfs_fattr to use struct timespec64 2019-11-03 21:28:44 -05:00
internal.h NFS: Convert struct nfs_fattr to use struct timespec64 2019-11-03 21:28:44 -05:00
io.c
iostat.h
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile NFS: Create a root NFS directory in /sys/fs/nfs 2019-07-06 14:54:49 -04:00
mount_clnt.c
namespace.c NFS: If nfs_mountpoint_expiry_timeout < 0, do not expire submounts 2019-11-03 21:28:44 -05:00
netns.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
nfs.h
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c NFSv2: Clean up timespec encode 2019-11-03 21:28:44 -05:00
nfs3_fs.h
nfs3acl.c
nfs3client.c NFS/pnfs: Separate NFSv3 DS and MDS traffic 2019-11-03 21:28:45 -05:00
nfs3proc.c NFSv3: use nfs_add_or_obtain() to create and reference inodes 2019-09-20 15:15:24 -04:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFSv3: Clean up timespec encode 2019-11-03 21:28:44 -05:00
nfs4_fs.h NFS4: Trace lock reclaims 2019-11-18 11:04:32 +01:00
nfs4client.c Merge branch 'linux-ssc-for-5.5' 2019-11-06 08:55:23 -05:00
nfs4file.c NFSv4.2 fix memory leak in nfs42_ssc_open 2019-11-18 10:50:41 +01:00
nfs4getroot.c
nfs4idmap.c Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
nfs4idmap.h
nfs4namespace.c
nfs4proc.c NFSv4: add declaration of current_stateid 2019-11-18 10:36:45 +01:00
nfs4renewd.c
nfs4session.c
nfs4session.h
nfs4state.c NFS4: Trace lock reclaims 2019-11-18 11:04:32 +01:00
nfs4super.c NFS: Rename nfs_inode_return_delegation_noreclaim() 2019-11-03 21:28:45 -05:00
nfs4sysctl.c
nfs4trace.c pnfs/flexfiles: Add tracepoints for detecting pnfs fallback to MDS 2019-07-18 15:50:28 -04:00
nfs4trace.h NFS4: Trace lock reclaims 2019-11-18 11:04:32 +01:00
nfs4xdr.c nfs: fix timstamp debug prints 2019-12-18 18:07:32 +01:00
nfs42.h NFS based on file size issue sync copy or fallback to generic copy offload 2019-10-09 12:06:22 -04:00
nfs42proc.c NFSv4: Make _nfs42_proc_copy_notify() static 2019-11-18 10:47:38 +01:00
nfs42xdr.c NFS: add ca_source_server<> to COPY 2019-10-09 12:05:49 -04:00
nfsroot.c
nfstrace.c
nfstrace.h reimplement path_mountpoint() with less magic 2020-01-15 01:36:06 -05:00
pagelist.c NFS: Fix initialisation of I/O result struct in nfs_pgio_rpcsetup 2019-08-19 08:56:04 -04:00
pnfs_dev.c
pnfs_nfs.c pNFS/flexfiles: Turn off soft RPC calls 2019-08-26 15:31:29 -04:00
pnfs.c NFSv4: add declaration of current_stateid 2019-11-18 10:36:45 +01:00
pnfs.h pNFS: Handle NFS4ERR_OLD_STATEID on layoutreturn by bumping the state seqid 2019-09-20 15:48:35 -04:00
proc.c NFSv2: Fix write regression 2019-08-27 10:24:56 -04:00
read.c NFS: Fix spurious EIO read errors 2019-08-26 15:31:29 -04:00
super.c NFS: remove unneeded semicolon 2019-11-18 10:37:58 +01:00
symlink.c
sysctl.c
sysfs.c fs: nfs: sysfs: Remove NULL check before kfree 2019-11-18 10:38:04 +01:00
sysfs.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
unlink.c fsnotify: move fsnotify_nameremove() hook out of d_delete() 2019-06-20 14:47:44 +02:00
write.c nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request 2019-10-02 08:52:17 -04:00