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(parent: ea1d24b) | patch
lightnvm: pblk: fix write amplificiation calculation
authorHans Holmberg <hans.holmberg@cnexlabs.com>
Tue, 9 Oct 2018 11:11:50 +0000 (13:11 +0200)
committerJens Axboe <axboe@kernel.dk>
Tue, 9 Oct 2018 14:25:07 +0000 (08:25 -0600)
commit765462fa4c4d0fd3eb718f2ba14cb04c35219854
treeb97d875ef5463cc92466dca93681cca2798edc0ctree | snapshot
parentea1d24bc3ac0a0a544db0686d1ff8bb0c31ad683commit | diff
lightnvm: pblk: fix write amplificiation calculation

When the user data counter exceeds 32 bits, the write amplification
calculation does not provide the right value. Fix this by using
div64_u64 in stead of div64.

Fixes: 76758390f83e ("lightnvm: pblk: export write amplification counters to sysfs")
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/lightnvm/pblk-sysfs.c diff | blob | history
John Crispins staging tree