KAMEZAWA Hiroyuki wrote:
Note1: icache flush is called only when VM_EXEC flag is on and
PG_arch_1 is not set.
If you have not got the page in the cache, then the new page will
be allocated with PG_arch_1 bit off.
You are going to flush pages which are read by HW DMA, i.e. the L2I
of Montecito does not keep old lines for those pages anyway.
...->a_ops->readpage() of "L2I safe" file systems should set PG_arch_1
if the CPU is ia64 and it has got separate L2I.
On the other hand, arch. independent file systems should not play with
PG_arch_1.
The base kernel should export a macro for the file systems...
Thanks,
Zoltan Menyhart
-
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/
[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]
