lkml.org 
[lkml]   [2008]   [Aug]   [20]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateWed, 20 Aug 2008 01:37:36 -0700
FromAndrew Morton <>
SubjectRe: [PATCH] fbdefio: add set_page_dirty handler to deferred IO FB
On Wed, 20 Aug 2008 09:13:23 +0100 Ian Campbell <ijc@hellion.org.uk> wrote:

> Perhaps applying the band-aid at open time instead would be preferred?

That would be less racy, I expect.  Implement fb_ops.fb_open() within
drivers/video/fb_defio.c and do the address_space_operations overwrite
there.  Hopefully that will ensure that the address_space_operations
instance is stable before anyone uses it for anything serious.

It'd be better to hook in at inode creation time but afaict that's not
available for the /dev/fb0 node.

<tries to write a patch>

OK, seems that fb_ops.fb_open() has no way of getting at the `struct
file *' which is being opened (wtf?).  Screwed.  Need to change
fb_ops.fb_open(), or add a new fb_ops.fb_open_sane().






\
 
 \ /
  Last update: 2008-08-20 10:41    [from the cache]
©2003-2008