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Commit 677d23b7 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/udl: disable fb_defio by default 



There seems to be a bad interaction between gem/shmem and defio on top,
I get list corruption on the page lru in the shmem code.

Turn it off for now until we get some more digging done.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent e90a4ea5

drivers/gpu/drm/udl/udl_fb.c

+2 −2
Original line number Diff line number Diff line
@@ -22,9 +22,9 @@ 


#include <drm/drm_fb_helper.h>



#define DL_DEFIO_WRITE_DELAY    5 /* fb_deferred_io.delay in jiffies */

#define DL_DEFIO_WRITE_DELAY    (HZ/20) /* fb_deferred_io.delay in jiffies */



static int fb_defio = 1;  /* Optionally enable experimental fb_defio mmap support */

static int fb_defio = 0;  /* Optionally enable experimental fb_defio mmap support */

static int fb_bpp = 16;



module_param(fb_bpp, int, S_IWUSR | S_IRUSR | S_IWGRP | S_IRGRP);