lkml.org 
[lkml]   [2006]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH -mm 5/6] mm: Print first block offset for swap areas
On Wed 2006-09-20 21:54:38, Rafael J. Wysocki wrote:
> In order to use a swap file with swsusp we need to know the offset at which
> its swap header is located. However, the swap header is always located in the
> first block of the swap file and it's quite easy to make sys_swapon() print
> the offset of the swap file's (or swap partition's) first block.
>
> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ACK.

(main point of this is that it changes user-visible printk, but that's
probably okay, and way better than changing /proc files...)
Pavel
> @@ -1628,9 +1632,10 @@ asmlinkage long sys_swapon(const char __
> total_swap_pages += nr_good_pages;
>
> printk(KERN_INFO "Adding %uk swap on %s. "
> - "Priority:%d extents:%d across:%lluk\n",
> + "Priority:%d extents:%d across:%lluk offset:%llu\n",
> nr_good_pages<<(PAGE_SHIFT-10), name, p->prio,
> - nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10));
> + nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10),
> + (unsigned long long)start);
>
> /* insert swap space into swap_list: */
> prev = -1;

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-09-21 23:35    [W:0.128 / U:0.140 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site