lkml.org 
[lkml]   [2017]   [Dec]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v19 3/7] xbitmap: add more operations
On Tue, Dec 12, 2017 at 07:55:55PM +0800, Wei Wang wrote:
> +int xb_preload_and_set_bit(struct xb *xb, unsigned long bit, gfp_t gfp);

I'm struggling to understand when one would use this. The xb_ API
requires you to handle your own locking. But specifying GFP flags
here implies you can sleep. So ... um ... there's no locking?

> +void xb_clear_bit_range(struct xb *xb, unsigned long start, unsigned long end);

That's xb_zero() which you deleted with the previous patch ... remember,
keep things as close as possible to the bitmap API.

\
 
 \ /
  Last update: 2017-12-15 19:44    [W:0.186 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site