Hi, everyone,
I'm a developer from china, now i have a problem is about the shared flock
for hugepage files in the function of "map_all_hugepages()".
as follows:
---------------------------------------------------------------------------------------------------
/* set shared flock on the file. */
if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
RTE_LOG(DEBUG, EAL, "%s(): Locking file failed:%s \n", __func__,
strerror(errno));
close(fd);
return i;
}
close(fd);
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there, it gives a shared flock to each hugepage file in /mnt/huge, and close it
right away.
it makes me puzzled. Why? What doing that is for?
I'm looking forward to your reply, thank you very much.
best regards,
Bakari.
