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libtpool: don't clone affinity if not supported 

pthread_attr_(get/set)affinity_np() is glibc-only. This commit
disable the code path that use those functions in non-glibc
system. Fixes the following when building with musl:

libzfs.so: undefined reference to`pthread_attr_setaffinity_np'
libzfs.so: undefined reference to`pthread_attr_getaffinity_np'

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Leorize <alaviss@users.noreply.github.com>
Closes #6571
This commit is contained in:
alaviss 2017-08-30 00:17:49 +07:00 committed by Brian Behlendorf
parent 0d3980acbc
commit 1ea8942faa
1 changed files with 2 additions and 0 deletions
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lib/libtpool/thread_pool.c
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@ -252,6 +252,7 @@ pthread_attr_clone(pthread_attr_t *attr, const pthread_attr_t *old_attr)
if (error || (old_attr == NULL))
return (error);
#ifdef __GLIBC__
cpu_set_t cpuset;
size_t cpusetsize = sizeof (cpuset);
error = pthread_attr_getaffinity_np(old_attr, cpusetsize, &cpuset);
@ -259,6 +260,7 @@ pthread_attr_clone(pthread_attr_t *attr, const pthread_attr_t *old_attr)
error = pthread_attr_setaffinity_np(attr, cpusetsize, &cpuset);
if (error)
goto error;
#endif /* __GLIBC__ */
int detachstate;
error = pthread_attr_getdetachstate(old_attr, &detachstate);