Re: [PATCHv4 18/43] block: define BIO_MAX_PAGES to HPAGE_PMD_NR if huge page cache enabled

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Oct 25, 2016 at 03:13:17AM +0300, Kirill A. Shutemov wrote:
> We are going to do IO a huge page a time. So we need BIO_MAX_PAGES to be
> at least HPAGE_PMD_NR. For x86-64, it's 512 pages.

NAK.  The maximum bio size should not depend on an obscure vm config,
please send a standalone patch increasing the size to the block list,
with a much long explanation.  Also you can't simply increase the size
of the largers pool, we'll probably need more pools instead, or maybe
even implement a similar chaining scheme as we do for struct
scatterlist.
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux