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| author | David Sterba <dsterba@suse.com> | 2017-07-13 18:10:07 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-07-14 20:39:31 +0200 |
| commit | c09abff87f90c81d74b6483837a665f97448a475 (patch) | |
| tree | 72371fad2cc4dce6180e8399d94ff053a879c607 /fs/aio.c | |
| parent | 1014f3d68fc4034966b15234dc12b81147ee83b2 (diff) | |
| download | blackbird-obmc-linux-c09abff87f90c81d74b6483837a665f97448a475.tar.gz blackbird-obmc-linux-c09abff87f90c81d74b6483837a665f97448a475.zip | |
btrfs: cloned bios must not be iterated by bio_for_each_segment_all
We've started using cloned bios more in 4.13, there are some specifics
regarding the iteration. Filipe found [1] that the raid56 iterated a
cloned bio using bio_for_each_segment_all, which is incorrect. The
cloned bios have wrong bi_vcnt and this could lead to silent
corruptions. This patch adds assertions to all remaining
bio_for_each_segment_all cases.
[1] https://patchwork.kernel.org/patch/9838535/
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/aio.c')
0 files changed, 0 insertions, 0 deletions
