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linux/drivers/video
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Albert Herranz 49bbd815fd fb_defio: fix for non-dirty ptes 
Fix a problem observed while using fb_defio with a short delay on a
PowerPC platform.

It is possible that page_mkclean() is invoked in the deferred io work
function _before_ a PTE has been marked dirty.  In this case, the page is
removed from the defio pagelist but page_mkclean() does not write-protect
the page again.  The end result is that defio ignores all subsequent
writes to the page and the corresponding portions of the framebuffer never
get updated.

The fix consists in keeping track of the pages with non-dirty PTEs,
re-checking them again on the next deferred io work iteration.  Note that
those pages are not passed to the defio callback as they are not written
by userspace yet.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2010-05-25 08:07:09 -07:00
..
aty fbdev: move FBIO_WAITFORVSYNC to linux/fb.h 2010-05-25 08:07:09 -07:00
backlight include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
console include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
display include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
geode include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
i810 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
intelfb fbdev: move FBIO_WAITFORVSYNC to linux/fb.h 2010-05-25 08:07:09 -07:00
kyro
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logo
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matrox include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mb862xx of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
mbx include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
msm include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nvidia include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
omap include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
omap2 OMAP: DSS2: Fix omap_dss_probe() error path 2010-05-18 15:06:09 +03:00
pnx4008 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
riva backlight: Allow properties to be passed at registration 2010-03-16 19:47:54 +00:00
savage include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sis sis: strcpy() => strlcpy() 2010-05-25 08:07:08 -07:00
vermilion include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
via Merge branch 'viafb-next' of git://git.lwn.net/linux-2.6 2010-05-20 13:34:17 -07:00
68328fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
Kconfig Merge branch 'msm-video' of git://codeaurora.org/quic/kernel/dwalker/linux-msm 2010-05-21 14:40:30 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2010-03-13 21:29:38 -08:00
acornfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acornfb.h
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amba-clcd.c Video: ARM CLCD: Better fix for swapped IENB and CNTL registers 2010-03-14 19:42:44 +00:00
amifb.c m68k: amiga - Frame buffer platform device conversion 2010-05-17 21:37:43 +02:00
arcfb.c fbdev: section cleanup in arcfb 2010-05-25 08:07:08 -07:00
arkfb.c
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asiliantfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
atafb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
atafb.h
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atafb_iplan2p2.c
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atafb_iplan2p4.c
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atafb_iplan2p8.c
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atafb_mfb.c
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atafb_utils.h
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atmel_lcdfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
au1100fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
au1100fb.h
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au1200fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
au1200fb.h
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bf54x-lq043fb.c backlight: blackfin - Fix missing registration failure handling 2010-03-16 20:10:17 +00:00
bfin-lq035q1-fb.c fbdev: bfin-lq035q1-fb: respect new PPI mode platform field 2010-05-25 08:07:08 -07:00
bfin-t350mcqb-fb.c fbdev: bfin-t350mcqb-fb: fix fbmem allocation with blanking lines 2010-05-11 17:33:42 -07:00
broadsheetfb.c broadsheetfb: support storing waveform 2010-03-12 15:52:34 -08:00
bt431.h
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bt455.h
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bw2.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
c2p.h
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c2p_core.h
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c2p_iplan2.c
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c2p_planar.c
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carminefb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
carminefb.h
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carminefb_regs.h
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cfbcopyarea.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cfbfillrect.c
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cfbimgblt.c
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cg3.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
cg6.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
cg14.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
chipsfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cirrusfb.c m68k: amiga - Zorro bus modalias support 2010-05-17 21:37:41 +02:00
clps711xfb.c clps711xfb: convert to proc_fops 2009-12-16 07:20:04 -08:00
cobalt_lcdfb.c cocbalt_lcdfb: correct sections 2010-05-03 15:42:58 +02:00
controlfb.c
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controlfb.h
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cyber2000fb.c VIDEO: cyberpro: pci_request_regions needs a persistent name 2009-12-24 18:34:09 +00:00
cyber2000fb.h
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da8xx-fb.c fbdev: da8xx/omap-l1xx: implement double buffering 2010-05-25 08:07:09 -07:00
dnfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
edid.h
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efifb.c Merge remote branch 'anholt/drm-intel-next' into drm-next 2010-05-19 09:35:51 +10:00
ep93xx-fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
epson1355fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fb_ddc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fb_defio.c fb_defio: fix for non-dirty ptes 2010-05-25 08:07:09 -07:00
fb_draw.h
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fb_notify.c
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fb_sys_fops.c
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fbcmap.c
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fbcvt.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fbmem.c fbmem: avoid printk format warning with 32-bit resources 2010-05-21 20:30:33 -07:00
fbmon.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fbsysfs.c fbdev: allow passing more than one aperture for handoff 2010-05-18 16:19:27 +10:00
ffb.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
fm2fb.c m68k: amiga - Zorro bus modalias support 2010-05-17 21:37:41 +02:00
fsl-diu-fb.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
fsl-diu-fb.h
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g364fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
gbefb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
gxt4500.c
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hecubafb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hgafb.c fbdev: section cleanup in hgafb 2010-05-25 08:07:08 -07:00
hitfb.c hitfb: fix sections 2010-05-25 08:07:09 -07:00
hpfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
igafb.c
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imsttfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
imxfb.c imxfb: correct location of callbacks in suspend and resume 2010-02-02 18:11:22 -08:00
leo.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
macfb.c macfb: fix 24-bit visual and stuff 2010-02-27 18:31:16 +01:00
macmodes.c fbdev: add some missing mac modes 2010-02-27 18:31:14 +01:00
macmodes.h
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maxinefb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
metronomefb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
modedb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mx3fb.c DMAENGINE: extend the control command to include an arg 2010-05-17 16:30:42 -07:00
n411.c
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neofb.c
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nuc900fb.c NUC900 LCD Controller Driver 2010-03-12 15:52:34 -08:00
nuc900fb.h NUC900 LCD Controller Driver 2010-03-12 15:52:34 -08:00
offb.c fbdev: allow passing more than one aperture for handoff 2010-05-18 16:19:27 +10:00
output.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
p9100.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
platinumfb.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
platinumfb.h
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pm2fb.c tree-wide: s/widht/width/g typo in comments 2010-02-05 12:22:42 +01:00
pm3fb.c
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pmag-aa-fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pmag-ba-fb.c fbdev: add palette register check to several drivers 2009-12-16 07:20:01 -08:00
pmagb-b-fb.c fbdev: add palette register check to several drivers 2009-12-16 07:20:01 -08:00
ps3fb.c
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pvr2fb.c sh: Fix up more 64-bit pgprot truncation on SH-X2 TLB. 2010-02-17 13:23:00 +09:00
pxa168fb.c pxa168fb: fix incorrect resource calculation 2010-03-22 20:30:17 +08:00
pxa168fb.h
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pxafb.c [ARM] pxafb: fix building issue of incorrect reference 2009-12-29 14:11:27 +08:00
pxafb.h
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q40fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
s1d13xxxfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
s3c-fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
s3c2410fb.c s3c2410fb: fix sections 2010-05-25 08:07:09 -07:00
s3c2410fb.h
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s3fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sa1100fb.c platform-drivers: move probe to .devinit.text in drivers/video 2010-03-07 17:04:50 -08:00
sa1100fb.h
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sbuslib.c
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sbuslib.h
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sgivwfb.c sgivwfb: fix sections 2010-05-25 08:07:09 -07:00
sh7760fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sh_mobile_lcdcfb.c sh: fix a number of Oopses and leaks in SH framebuffer driver 2010-05-06 13:24:56 +09:00
skeletonfb.c
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sm501fb.c tree-wide: Assorted spelling fixes 2010-02-09 11:13:56 +01:00
sstfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sticore.h
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stifb.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
sunxvr500.c Merge branch 'master' into export-slabh 2010-04-05 11:37:28 +09:00
sunxvr1000.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
sunxvr2500.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
svgalib.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
syscopyarea.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sysfillrect.c
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sysimgblt.c
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tcx.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
tdfxfb.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
tgafb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
tmiofb.c drivers/video/tmiofb.c: fix uninitialised return value 2009-09-23 07:39:57 -07:00
tridentfb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
uvesafb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
valkyriefb.c valkyriefb: various fixes 2010-02-27 18:31:13 +01:00
valkyriefb.h valkyriefb: various fixes 2010-02-27 18:31:13 +01:00
vesafb.c fbdev: allow passing more than one aperture for handoff 2010-05-18 16:19:27 +10:00
vfb.c fbdev: section cleanup in vfb 2010-05-25 08:07:08 -07:00
vga16fb.c fbdev: section cleanup in vga16fb 2010-05-25 08:07:08 -07:00
vgastate.c
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vt8623fb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
w100fb.c fbdev: section cleanup in w100fb 2010-05-25 08:07:08 -07:00
w100fb.h
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xen-fbfront.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xilinxfb.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00