[PATCH 0/2] fbdev: Significantly improve performance of fbdefio mmap
Thomas Zimmermann
tzimmermann at suse.de
Thu Feb 10 14:11:09 UTC 2022
Remove the bubble sort from fbdev defered I/O page tracking. Most
drivers only want to know which pages have been written to. The exact
order is not important.
Tested on simpledrm.
Thomas Zimmermann (2):
fbdev/defio: Early-out if page is already enlisted
fbdev: Don't sorting deferred-I/O pages by default
drivers/staging/fbtft/fbtft-core.c | 1 +
drivers/video/fbdev/broadsheetfb.c | 1 +
drivers/video/fbdev/core/fb_defio.c | 38 +++++++++++++++++------------
drivers/video/fbdev/metronomefb.c | 1 +
drivers/video/fbdev/udlfb.c | 1 +
include/linux/fb.h | 1 +
6 files changed, 28 insertions(+), 15 deletions(-)
--
2.34.1
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