On Mon, Jan 08, 2018 at 10:59:43AM +0200, Nikolay Borisov wrote:
> add_pending_csums was added as part of the new data=ordered implementation in
> e6dcd2dc9c48 ("Btrfs: New data=ordered implementation"). Even back then it
> called the btrfs_csum_file_blocks which can fail but it never bothered handling
> the failure. In ENOMEM situation this could lead to the filesystem failing to
> write the checksums for a particular extent and not detect this. On read this
> could lead to the filesystem erroring out due to crc mismatch. Fix it by
> propagating failure from add_pending_csums and handling them
>
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Reviewed-by: Josef Bacik <jbacik@xxxxxx>
Thanks,
Josef
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