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Handle block pointers with a corrupt logical size

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Commit 5f6d0b6 was originally added to gracefully handle block
pointers with a damaged logical size.  However, it incorrectly
assumed that all passed arc_done_func_t could handle a NULL
arc_buf_t.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4069
Closes #4080
This commit is contained in:
Brian Behlendorf 2015-12-09 11:00:35 -08:00
parent a6c6e0f583
commit 1cdb86cba2
1 changed files with 3 additions and 9 deletions
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12
module/zfs/arc.c
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@ -4322,17 +4322,11 @@ top:
/*
* Gracefully handle a damaged logical block size as a
* checksum error by passing a dummy zio to the done callback.
* checksum error.
*/
if (size > spa_maxblocksize(spa)) {
if (done) {
rzio = zio_null(pio, spa, NULL,
NULL, NULL, zio_flags);
rzio->io_error = ECKSUM;
done(rzio, buf, private);
zio_nowait(rzio);
}
rc = ECKSUM;
ASSERT3P(buf, ==, NULL);
rc = SET_ERROR(ECKSUM);
goto out;
}