lightnvm: pblk: fix resubmission of overwritten write err lbas

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[ Upstream commit c12fa401ac ]

Make sure we only look up valid lba addresses on the resubmission path.

If an lba is invalidated in the write buffer, that sector will be
submitted to disk (as it is already mapped to a ppa), and that write
might fail, resulting in a crash when trying to look up the lba in the
mapping table (as the lba is marked as invalid).

Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Hans Holmberg 2018-12-11 20:16:10 +01:00 • committed by Greg Kroah-Hartman

parent ab84ec6ef8

commit 11dd6d2155

1 changed files with 5 additions and 3 deletions

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drivers/lightnvm/pblk-write.c

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