lkml.org 
[lkml]   [2016]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3] NFSv4: replace seqcount_t with a rw_semaphore
On 2016-10-31 16:11:02 [+0000], Trond Myklebust wrote:
>
> Yes, and yes. We can’t rely on the list pointers remaining correct, so we restart the list scan and we use the ops->state_flag_bit to signal whether or not state has been recovered for the entry being scanned.

but this is tested at the top of the loop and by then you look at
lists' ->next pointer which might be invalid.

Sebastian

\
 
 \ /
  Last update: 2016-11-02 18:12    [W:0.066 / U:0.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site