Commit af13404
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WiP cryptsetup 2.6.1 version bump : lvm2 (dmsetup, libdevmapper), util-linux (blkid) version bump and patches
Well that was a deeper rabbit holde then initially thought.
- cryptsetup required different locking mechanisms, provided by dmsetup and libdevmapper
- cryptsetup required newer blkid.h functions provided by newer util-linux....
Now let's see.
Last tests, in ramfs from initrd/test_reencrypt_ram.sh showed really poor performances:
- dmsetup calls were unable to take advantage of kernel backend correctly
- consequently, raw device was constently closed and reopened with loopback created devices
- as a result, even ramfs raw disk reencrypting operations were slower then 200MiB/s
- If ram operations are slow.... then forget about IO ops without directio!
TODO:
- revisit kernel backend additions that are probably not required at all.
Signed-off-by: Thierry Laurion <insurgo@riseup.net>1 parent 01ddfd3 commit af13404
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