Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c

On Tue, 1 May 2007, Andrew Morton wrote:

> As Satyam said, this will sometimes cause us to map and unmap the page
> twice, and to run flush_dcache_page() twice.  In not-terribly-uncommon
> circumstances in very frequently called functions.
> 
> Doesn't seem worth it to me.

Ok but we have that code three times. Should I add a variant of 
zero_user_page that zeroes everything but the section specified?

zero_user_page_allbut() ?

-
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/

---

• Follow-Ups:
  • Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
    • From: "Nate Diller" <[email protected]>

• References:
  • [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
    • From: Christoph Lameter <[email protected]>
  • Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
    • From: "Satyam Sharma" <[email protected]>
  • Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
    • From: Christoph Lameter <[email protected]>
  • Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
    • From: Andrew Morton <[email protected]>

• Prev by Date: Re: [stable] to something appropriate (was Re: 2.6.22 -mm merge plans)
• Next by Date: Re: arch/i386/boot rewrite, and all the hard-coded video cards
• Previous by thread: Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
• Next by thread: Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c
• 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]