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bcache: intercept test mode before write
Don't allow writes in test mode. test mode should be more sophisticated than just faking writes, and this should be a last defense for cases where test mode is not being checked correctly.
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@ -922,6 +922,9 @@ bool dev_write_bytes(struct device *dev, off_t start, size_t len, void *data)
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{
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int ret;
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if (test_mode())
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return true;
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if (!scan_bcache) {
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if (!dev_open(dev))
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return false;
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@ -955,6 +958,9 @@ bool dev_write_zeros(struct device *dev, off_t start, size_t len)
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{
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int ret;
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if (test_mode())
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return true;
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if (!scan_bcache) {
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if (!dev_open(dev))
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return false;
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