[lkml]   [2020]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 4/5] mm: shmem: Convert shmem_enabled_show to use sysfs_emit_at
On Mon, Nov 02, 2020 at 02:33:43PM +0100, Greg Kroah-Hartman wrote:
> > Oh, ugh, sysfs_emit() should be able to work on a buffer that isn't
> > page aligned. Greg, how about this?
> How can sysfs_emit() be called on a non-page-aligned buffer? It's being
> used on the buffer that was passed to the sysfs call.
> And if you are writing multiple values to a single sysfs file output,
> well, not good...

See shmem_enabled_show() in mm/shmem.c (output at
/sys/kernel/mm/transparent_hugepage/shmem_enabled on your machine).

I don't claim it's a good interface, but it exists.

 \ /
  Last update: 2020-11-02 15:08    [W:0.097 / U:1.344 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site