user/sven/linux.git/include/linux/dm-bufio.h, branch v5.4.143Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v5.4.1432021-01-19T17:26:13Zdm integrity: fix flush with external metadata device2021-01-19T17:26:13ZMikulas Patockampatocka@redhat.com2021-01-08T16:15:56Zurn:sha1:5349b17c3df5d62427ebf931851e8f421fad8a70
[ Upstream commit 9b5948267adc9e689da609eb61cf7ed49cae5fa8 ]
With external metadata device, flush requests are not passed down to the
data device.
Fix this by submitting the flush request in dm_integrity_flush_buffers. In
order to not degrade performance, we overlap the data device flush with
the metadata device flush.
Reported-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
dm bufio: move dm-bufio.h to include/linux/2018-04-03T19:04:23ZMikulas Patockampatocka@redhat.com2018-03-15T20:02:31Zurn:sha1:afa53df869121fd4f6f1265cbe794d64387890ae
Move dm-bufio.h to include/linux/ so that external GPL'd DM target
modules can use it.
It is better to allow the use of dm-bufio than force external modules
to implement the equivalent buffered IO mechanism in some new way. The
hope is this will encourage the use of dm-bufio; which will then make it
easier for a GPL'd external DM target module to be included upstream.
A couple dm-bufio EXPORT_SYMBOL exports have also been updated to use
EXPORT_SYMBOL_GPL.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>