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authorIan Campbell <ijc@hellion.org.uk>2008-08-20 17:09:23 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-20 18:40:32 -0400
commitd847471d063663b9f36927d265c66a270c0cfaab (patch)
treec58124be633945a548a1a16c1191ccfeb9ef3ea5 /include
parentb42f931737bea8ca3982449d63ec46410d13e891 (diff)
fbdefio: add set_page_dirty handler to deferred IO FB
Fixes kernel BUG at lib/radix-tree.c:473. Previously the handler was incidentally provided by tmpfs but this was removed with: commit 14fcc23fdc78e9d32372553ccf21758a9bd56fa1 Author: Hugh Dickins <hugh@veritas.com> Date: Mon Jul 28 15:46:19 2008 -0700 tmpfs: fix kernel BUG in shmem_delete_inode relying on this behaviour was incorrect in any case and the BUG also appeared when the device node was on an ext3 filesystem. v2: override a_ops at open() time rather than mmap() time to minimise races per AKPM's concerns. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Cc: Johannes Weiner <hannes@saeurebad.de> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Kel Modderman <kel@otaku42.de> Cc: Markus Armbruster <armbru@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> [14fcc23fd is in 2.6.25.14 and 2.6.26.1] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 3b8870e32afd..531ccd5f5960 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -976,6 +976,9 @@ static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
976 976
977/* drivers/video/fb_defio.c */ 977/* drivers/video/fb_defio.c */
978extern void fb_deferred_io_init(struct fb_info *info); 978extern void fb_deferred_io_init(struct fb_info *info);
979extern void fb_deferred_io_open(struct fb_info *info,
980 struct inode *inode,
981 struct file *file);
979extern void fb_deferred_io_cleanup(struct fb_info *info); 982extern void fb_deferred_io_cleanup(struct fb_info *info);
980extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry, 983extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
981 int datasync); 984 int datasync);