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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-03-25 09:30:07 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-05-07 13:54:09 -0300 |
| commit | 903bc7dcc2acafc40be11639767e10a2de712649 (patch) | |
| tree | cee8ab271ec58e80ce0b34e33ad2c3f5f1662370 /sysdeps/unix/sysv/linux/alpha | |
| parent | db373e4c57159ac82df4b07b596dd29c4cfe9d86 (diff) | |
| download | glibc-903bc7dcc2acafc40be11639767e10a2de712649.tar.gz glibc-903bc7dcc2acafc40be11639767e10a2de712649.tar.xz glibc-903bc7dcc2acafc40be11639767e10a2de712649.zip | |
linux: Use sched_getaffinity for __get_nprocs (BZ #27645)
Both the sysfs and procfs parsing (through GET_NPROCS_PARSER) are removed in favor the syscall. The initial scratch buffer should fit to most of the common usage (1024 bytes with maps to 8192 CPUs). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/getsysstats.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/getsysstats.c b/sysdeps/unix/sysv/linux/alpha/getsysstats.c index bdf794703a..098575faef 100644 --- a/sysdeps/unix/sysv/linux/alpha/getsysstats.c +++ b/sysdeps/unix/sysv/linux/alpha/getsysstats.c @@ -18,25 +18,6 @@ <https://www.gnu.org/licenses/>. */ -/* We need to define a special parser for /proc/cpuinfo. */ -#define GET_NPROCS_PARSER(FD, BUFFER, CP, RE, BUFFER_END, RESULT) \ - do \ - { \ - /* Find the line that contains the information about the number of \ - active cpus. We don't have to fear extremely long lines since \ - the kernel will not generate them. 8192 bytes are really enough. \ - If there is no "CPUs ..." line then we are on a UP system. */ \ - char *l; \ - (RESULT) = 1; \ - while ((l = next_line (FD, BUFFER, &CP, &RE, BUFFER_END)) != NULL) \ - if ((sscanf (BUFFER, "cpus active : %d", &(RESULT)) == 1) \ - || (sscanf (BUFFER, "CPUs probed %*d active %d", \ - &(RESULT)) == 1)) \ - break; \ - } \ - while (0) - - /* On the Alpha we can distinguish between the number of configured and active cpus. */ #define GET_NPROCS_CONF_PARSER(FP, BUFFER, RESULT) \ |