qemu: Use "unsafe" cache if direct IO is not supported #119
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ZFS on Linux, for example, does not support direct I/O. Probe for DIO support before starting a new QEMU instance and fall-back to "unsafe" caching if it's not supported. Suggested by Tomek. Fixes #118. Signed-off-by: Pekka Enberg <penberg@iki.fi>
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I had the same launch failure due to use of ecryptfs, and confirm this patch fixes the problem for me. |
penberg
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qemu: Use "unsafe" cache if direct IO is not supported
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@acolyer Thank you for testing! 🍻 |
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ZFS on Linux, for example, does not support direct I/O. Probe for DIO
support before starting a new QEMU instance and fall-back to "unsafe"
caching if it's not supported. Suggested by Tomek.
Fixes #118.
Signed-off-by: Pekka Enberg penberg@iki.fi