why do we call clear_active_flags in shrink_inactive_list ?

In 2.6.23's shrink_inactive_list function, why do we have to call
clear_active_flags after isolate_lru_pages call ?
IMHO, If it call isolate_lru_pages with "zone->inactive_list", It can
be sure that it is not PG_active. So I think It is unnecessary calling
clear_active_flags. Nonetheless, Why do we have to recheck PG_active
flags wich clear_active_flags.

If it is right, which case it happens that page is set to be PG_active ?

-- 
Thanks,
barrios
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Prev by Date: [PATCH 10/52] KVM: Portability: Move kvm_vcpu_ioctl_get_dirty_log to arch-specific file
• Next by Date: Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far
• Previous by thread: [PATCH 00/52] KVM patch queue review for 2.6.25 merge window (part III)
• Next by thread: Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]