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zio_dva_throttle_done() should allow zinjected ZIO

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If fault injection is enabled, the ZIO_FLAG_IO_RETRY could be set by
zio_handle_device_injection() to generate the FMA events and update
stats. Hence, ignore the flag and process such zios.

A better fix would be to add another flag in the zio_t to indicate that
the zio is failed because of a zinject rule. However, considering the
fact that we do this in debug bits, we could do with the crude check
using the global flag zio_injection_enabled which is set to 1 when
zinject records are added.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sanjeev Bagewadi <sanjeev.bagewadi@gmail.com>
Closes #6383 
Closes #6384
This commit is contained in:
sanjeevbagewadi 2017-08-11 04:23:40 +05:30 committed by Tony Hutter
parent 4bdb8fcfa8
commit 2d9b57d39f
1 changed files with 2 additions and 1 deletions
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module/zfs/zio.c
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@ -3661,7 +3661,8 @@ zio_dva_throttle_done(zio_t *zio)
ASSERT3U(zio->io_child_type, ==, ZIO_CHILD_VDEV);
ASSERT(vd != NULL);
ASSERT3P(vd, ==, vd->vdev_top);
ASSERT(!(zio->io_flags & (ZIO_FLAG_IO_REPAIR | ZIO_FLAG_IO_RETRY)));
ASSERT(zio_injection_enabled || !(zio->io_flags & ZIO_FLAG_IO_RETRY));
ASSERT(!(zio->io_flags & ZIO_FLAG_IO_REPAIR));
ASSERT(zio->io_flags & ZIO_FLAG_IO_ALLOCATING);
ASSERT(!(lio->io_flags & ZIO_FLAG_IO_REWRITE));
ASSERT(!(lio->io_orig_flags & ZIO_FLAG_NODATA));