Hi All,
found the following comment & code in SOLARIS/osi_vnops.c
and was wondering what it complains about regarding
Solaris rw_tryupgrade() ?
<snip>
#if defined(AFS_SUN5_ENV)
/*
* XXX Temporary fix for problems with Solaris rw_tryupgrade() lock.
* It isn't very persistent in getting the upgrade when others are
* waiting for it and returns 0. So the UpgradeSToW() macro that the
* rw_tryupgrade used to map to wasn't good enough and we need to use
* the following code instead. Obviously this isn't the proper place
* for it but it's only called from here for now
*
*/
#ifndef AFS_SUN54_ENV
AFS_TRYUP(lock)
afs_rwlock_t *lock;
{
if (!rw_tryupgrade(lock)) {
rw_exit(lock);
rw_enter(lock, RW_WRITER);
}
}
#endif
#endif
<snip end>
frankB
----------------------------------------------------------
Frank Batschulat, Solaris Kernel Sustaining & Engineering.
[EMAIL PROTECTED] (+49 30) 747 096 845 (x65845)
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