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Adhemerval Zanella 9d7c5cc38e linux: Normalize and return timeout on select (BZ #27651) 
The commit 2433d39b69, which added time64 support to select, changed
the function to use __NR_pselect6 (or __NR_pelect6_time64) on all
architectures.  However, on architectures where the symbol was
implemented with __NR_select the kernel normalizes the passed timeout
instead of return EINVAL.  For instance, the input timeval
{ 0, 5000000 } is interpreted as { 5, 0 }.

And as indicated by BZ #27651, this semantic seems to be expected
and changing it results in some performance issues (most likely
the program does not check the return code and keeps issuing
select with unormalized tv_usec argument).

To avoid a different semantic depending whether which syscall the
architecture used to issue, select now always normalize the timeout
input.  This is a slight change for some ABIs (for instance aarch64).

Checked on x86_64-linux-gnu and i686-linux-gnu.
2021-04-12 18:38:37 -03:00
..
rpc Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
auth_des.c Change most internal uses of __gettimeofday to __clock_gettime. 2019-10-30 17:04:10 -03:00
auth_none.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
auth_unix.c Change most internal uses of __gettimeofday to __clock_gettime. 2019-10-30 17:04:10 -03:00
authdes_prot.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
authuxprot.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
clnt_gen.c Replace all internal uses of __bzero with memset. This removes the need 2017-06-12 14:56:53 +01:00
clnt_perr.c sunrpc: Turn clnt_sperrno into a libc_hidden_nolink_sunrpc symbol 2020-07-07 20:19:57 +02:00
clnt_raw.c sunrpc: Remove always-defined _RPC_THREAD_SAFE_ macro 2018-06-26 15:27:03 +02:00
clnt_simp.c sunrpc: Remove always-defined _RPC_THREAD_SAFE_ macro 2018-06-26 15:27:03 +02:00
clnt_tcp.c Consistently use uintN_t not u_intN_t everywhere. 2017-08-07 19:55:34 +00:00
clnt_udp.c Disable -Wmaybe-uninitialized for total_deadline in sunrpc/clnt_udp.c. 2019-10-02 21:12:17 +00:00
clnt_unix.c Consistently use uintN_t not u_intN_t everywhere. 2017-08-07 19:55:34 +00:00
create_xid.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
des_crypt.c Disallow use of DES encryption functions in new programs. 2018-06-29 16:53:18 +02:00
des_impl.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
des_soft.c Disallow use of DES encryption functions in new programs. 2018-06-29 16:53:18 +02:00
get_myaddr.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
getrpcport.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
key_call.c sunrpc: Do not export key handling hooks by default 2020-07-07 20:19:57 +02:00
key_prot.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
Makefile sunrpc: tst-svc_register can be a regular test 2021-03-09 21:07:24 +01:00
netname.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
openchild.c Remove use of INTDEF/INTUSE in libio 2012-05-24 23:06:20 +02:00
pm_getmaps.c Consolidate non cancellable close call 2017-08-18 18:38:55 -03:00
pm_getport.c sunrpc: Remove internal_function attribute 2017-08-31 15:59:02 +02:00
pmap_clnt.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
pmap_prot.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
pmap_prot2.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
pmap_rmt.c sunrpc: Remove internal_function attribute 2017-08-31 15:59:02 +02:00
publickey.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rpc_cmsg.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
rpc_common.c sunrpc: Remove hidden aliases for global data symbols (bug 26210) 2020-07-08 08:39:39 +02:00
rpc_dtable.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
rpc_gethostbyname.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rpc_prot.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
rpc_thread.c libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
rtime.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
svc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
svc_auth.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
svc_authux.c Obsolete RPC implementation in libc. 2011-04-16 21:59:36 -04:00
svc_raw.c sunrpc: Remove always-defined _RPC_THREAD_SAFE_ macro 2018-06-26 15:27:03 +02:00
svc_run.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
svc_simple.c sunrpc: Remove always-defined _RPC_THREAD_SAFE_ macro 2018-06-26 15:27:03 +02:00
svc_tcp.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
svc_udp.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
svc_unix.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
svcauth_des.c linux: Normalize and return timeout on select (BZ #27651) 2021-04-12 18:38:37 -03:00
test-rpcent.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
thrsvc.c
tst-getmyaddr.c
tst-svc_register.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-udp-error.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-udp-garbage.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-udp-nonblocking.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-udp-timeout.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-xdrmem.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-xdrmem2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Versions Exclude rpcent functions and NSS backends for rpc, key when excluding sunrpc. 2015-02-06 10:43:19 -08:00
xcrypt.c sunrpc: Remove internal_function attribute 2017-08-31 15:59:02 +02:00
xdr.c sunrpc: Fix typo in xdr_string comment 2021-02-08 13:55:03 +01:00
xdr_array.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
xdr_float.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
xdr_intXX_t.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
xdr_mem.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
xdr_rec.c sunrpc: Remove internal_function attribute 2017-08-31 15:59:02 +02:00
xdr_ref.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
xdr_sizeof.c Include shlib-compat.h in many sunrpc/nis source files. 2017-06-04 11:31:28 -04:00
xdr_stdio.c Consistently use uintN_t not u_intN_t everywhere. 2017-08-07 19:55:34 +00:00