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raw-posix: Make aio=native option binding

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Traditionally, aio=native was treated as an advice that could simply be
ignored if an error occurs while initialising Linux AIO or the feature
wasn't compiled in. This behaviour was deprecated in commit 96518254
(qemu 2.3; error during init) and commit 1501ecc1 (qemu 2.5; not
compiled in).

This patch changes raw-posix to error out in these cases instead of
printing a deprecation warning.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2015-12-15 11:35:36 +01:00
parent b1fc8f934b
commit d657c0c289
1 changed files with 8 additions and 12 deletions
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20
block/raw-posix.c
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@ -500,21 +500,17 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
goto fail;
}
if (!s->use_aio && (bdrv_flags & BDRV_O_NATIVE_AIO)) {
error_printf("WARNING: aio=native was specified for '%s', but "
"it requires cache.direct=on, which was not "
"specified. Falling back to aio=threads.\n"
" This will become an error condition in "
"future QEMU versions.\n",
bs->filename);
error_setg(errp, "aio=native was specified, but it requires "
"cache.direct=on, which was not specified.");
ret = -EINVAL;
goto fail;
}
#else
if (bdrv_flags & BDRV_O_NATIVE_AIO) {
error_printf("WARNING: aio=native was specified for '%s', but "
"is not supported in this build. Falling back to "
"aio=threads.\n"
" This will become an error condition in "
"future QEMU versions.\n",
bs->filename);
error_setg(errp, "aio=native was specified, but is not supported "
"in this build.");
ret = -EINVAL;
goto fail;
}
#endif /* !defined(CONFIG_LINUX_AIO) */