lkml.org 
[lkml]   [2019]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RT PATCH v2] net/xfrm/xfrm_ipcomp: Protect scratch buffer with local_lock
On 2019-08-19 14:27:31 [+0200], Juri Lelli wrote:
> This v2 applies to v4.19.59-rt24.

Looks good, I suggest to apply this to v4.19 and earlier.

For v5.2 and later (including upstream) please send a patch to simply
replace get_cpu() with smp_processor_id(). The reason is that get_cpu()
will not disable BH and according to the call path this function is
invoked in NAPI callback and the other sides does local_bh_disable().
Therefore the caller of this must ensure that BH is disabled and
disabling preemption is not enough.

Sebastian

\
 
 \ /
  Last update: 2019-08-20 10:29    [W:0.105 / U:6.632 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site