lkml.org 
[lkml]   [2013]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2] staging: zram: fix handle_pending_slot_free() and zram_reset_device() race
On (09/12/13 15:12), Greg KH wrote:
> On Wed, Sep 11, 2013 at 02:12:50AM +0300, Sergey Senozhatsky wrote:
> > Dan Carpenter noted that handle_pending_slot_free() is racy with
> > zram_reset_device(). Take write init_lock in zram_slot_free(), thus
> > preventing any concurrent zram_slot_free(), zram_bvec_rw() or
> > zram_reset_device(). This also allows to safely check zram->init_done
> > in handle_pending_slot_free().
> >
> > Initial intention was to minimze number of handle_pending_slot_free()
> > call from zram_bvec_rw(), which were slowing down READ requests due to
> > slot_free_lock spin lock. Jerome Marchand suggested to remove
> > handle_pending_slot_free() from zram_bvec_rw().
> >
> > Link: https://lkml.org/lkml/2013/9/9/172
> > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
>
> I have multiple versions of this and the other zram patches from you,
> with no idea of which to accept.

yes, please, drop all patches. I did not Cc you in these two
patches to stop spamming your inbox with multiply versions.
I will send them back to you as soon as I get positive feedback.


> So, I'm going to drop them all, can you please resend what you wish to
> submit, and in the future, be a bit more obvious with your "vN"
> markings?
>

sorry for that.

-ss

> thanks,
>
> greg k-h
>


\
 
 \ /
  Last update: 2013-09-13 11:41    [W:0.111 / U:0.640 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site