linux/net/sunrpc
Arnd Bergmann f559935e7c nfs: use time64_t internally
The timestamps for the cache are all in boottime seconds, so they
don't overflow 32-bit values, but the use of time_t is deprecated
because it generally does overflow when used with wall-clock time.

There are multiple possible ways of avoiding it:

- leave time_t, which is safe here, but forces others to
  look into this code to determine that it is over and over.

- use a more generic type, like 'int' or 'long', which is known
  to be sufficient here but loses the documentation of referring
  to timestamps

- use ktime_t everywhere, and convert into seconds in the few
  places where we want realtime-seconds. The conversion is
  sometimes expensive, but not more so than the conversion we
  do today.

- use time64_t to clarify that this code is safe. Nothing would
  change for 64-bit architectures, but it is slightly less
  efficient on 32-bit architectures.

Without a clear winner of the three approaches above, this picks
the last one, favouring readability over a small performance
loss on 32-bit architectures.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-12-18 18:07:32 +01:00
..
auth_gss nfs: use time64_t internally 2019-12-18 18:07:32 +01:00
xprtrdma This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00
addr.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
auth_null.c SUNRPC: Add rpc_auth::au_ralign field 2019-02-14 11:48:36 -05:00
auth_unix.c SUNRPC: Use the client user namespace when encoding creds 2019-04-26 16:24:32 -04:00
auth.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
backchannel_rqst.c SUNRPC: Destroy the back channel when we destroy the host transport 2019-10-30 12:04:35 -04:00
cache.c nfs: use time64_t internally 2019-12-18 18:07:32 +01:00
clnt.c NFSoRDMA Client Updates for Linux 5.5 2019-11-18 10:55:55 +01:00
debugfs.c NFS client updates for Linux 5.3 2019-07-18 14:32:33 -07:00
Kconfig SUNRPC: Drop redundant CONFIG_ from CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES 2019-07-06 14:54:53 -04:00
Makefile SUNRPC: remove generic cred code. 2018-12-19 13:52:46 -05:00
netns.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpc_pipe.c kernel/notifier.c: remove blocking_notifier_chain_cond_register() 2019-12-04 19:44:12 -08:00
rpcb_clnt.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sched.c SUNRPC: Capture completion of all RPC tasks 2019-11-22 19:09:38 +01:00
socklib.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
stats.c Merge branch 'multipath_tcp' 2019-07-06 14:54:52 -04:00
sunrpc_syms.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sunrpc.h sunrpc: whitespace fixes 2018-07-31 12:53:40 -04:00
svc_xprt.c nfs: fix out-of-date connectathon talk URL 2019-07-03 17:52:09 -04:00
svc.c SUNRPC: Trace gssproxy upcall results 2019-10-30 16:32:07 -04:00
svcauth_unix.c nfs: use time64_t internally 2019-12-18 18:07:32 +01:00
svcauth.c SUNRPC: Trace gssproxy upcall results 2019-10-30 16:32:07 -04:00
svcsock.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sysctl.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
timer.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
xdr.c SUNRPC: Fix another issue with MIC buffer space 2019-11-18 11:05:42 +01:00
xprt.c NFSoRDMA Client Updates for Linux 5.5 2019-11-18 10:55:55 +01:00
xprtmultipath.c SUNRPC: Optimise transport balancing code 2019-07-18 14:43:52 -04:00
xprtsock.c This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00