On Thu, Aug 17, 2017 at 09:53:31AM -0700, Darrick J. Wong wrote:
> For a non-crc filesystem, make write/fuzz -c and -d work properly
> instead of bailing out. Since there's no checksum to update, both
> cases collapse to setting the field value without calling the write
> verifier.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
> ---
> db/fuzz.c | 8 ++++++--
> db/write.c | 7 +++++--
> 2 files changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/db/fuzz.c b/db/fuzz.c
> index 76dbf94..53cedbc 100644
> --- a/db/fuzz.c
> +++ b/db/fuzz.c
> @@ -125,7 +125,9 @@ fuzz_f(
> return 0;
> }
>
> - if (invalid_data && iocur_top->typ->crc_off == TYP_F_NO_CRC_OFF) {
> + if (invalid_data &&
> + iocur_top->typ->crc_off == TYP_F_NO_CRC_OFF &&
> + xfs_sb_version_hascrc(&mp->m_sb)) {
> dbprintf(_("Cannot recalculate CRCs on this type of object\n"));
> return 0;
> }
> @@ -149,7 +151,9 @@ fuzz_f(
> local_ops.verify_read = stashed_ops->verify_read;
> iocur_top->bp->b_ops = &local_ops;
>
> - if (corrupt) {
> + if (!xfs_sb_version_hascrc(&mp->m_sb)) {
> + local_ops.verify_write = xfs_dummy_verify;
> + } else if (corrupt) {
> local_ops.verify_write = xfs_dummy_verify;
> dbprintf(_("Allowing fuzz of corrupted data and bad CRC\n"));
> } else if (iocur_top->typ->crc_off == TYP_F_CRC_FUNC) {
> diff --git a/db/write.c b/db/write.c
> index 9fc6d8e..5ef76bc 100644
> --- a/db/write.c
> +++ b/db/write.c
> @@ -138,7 +138,8 @@ write_f(
> }
>
> if (invalid_data &&
> - iocur_top->typ->crc_off == TYP_F_NO_CRC_OFF) {
> + iocur_top->typ->crc_off == TYP_F_NO_CRC_OFF &&
> + xfs_sb_version_hascrc(&mp->m_sb)) {
> dbprintf(_("Cannot recalculate CRCs on this type of object\n"));
> return 0;
> }
> @@ -162,7 +163,9 @@ write_f(
> local_ops.verify_read = stashed_ops->verify_read;
> iocur_top->bp->b_ops = &local_ops;
>
> - if (corrupt) {
> + if (!xfs_sb_version_hascrc(&mp->m_sb)) {
> + local_ops.verify_write = xfs_dummy_verify;
> + } else if (corrupt) {
> local_ops.verify_write = xfs_dummy_verify;
> dbprintf(_("Allowing write of corrupted data and bad CRC\n"));
> } else if (iocur_top->typ->crc_off == TYP_F_CRC_FUNC) {
> --
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--
Carlos
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