[lkml]   [2016]   [May]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] dma: rcar-dmac: use list_add() on rcar_dmac_desc_put()
On Fri, Apr 22, 2016 at 01:50:04AM +0000, Kuninori Morimoto wrote:
> From: Kuninori Morimoto <>
> Current rcar_dmac_desc_put() is using list_add_tail() in order to
> push used descriptor to list of free descriptors, and next DMA transfer
> try to reuse it from this list. But because it is using *_tail(),
> this reuse effect can't be obtained without using all of them.
> For a longer-term solution, we should allocate hardware descriptors
> using GFP_KERNEL instead of GFP_NOWAIT, but it is difficult today.
> This patch uses list_add() instead of list_add_tail() for short-term
> solution.

Applied, thanks


 \ /
  Last update: 2016-05-14 10:01    [W:0.085 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site