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BIO_ALREADY_TRACED value conflict #188

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crawfxrd opened this issue Jul 12, 2019 · 0 comments · Fixed by #190
Closed

BIO_ALREADY_TRACED value conflict #188

crawfxrd opened this issue Jul 12, 2019 · 0 comments · Fixed by #190
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crawfxrd commented Jul 12, 2019 •
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While looking over bio changes, I noticed the commit of torvalds/linux@2b24e6f said

With the introduction of BIO_NO_PAGE_REF we've used up all available bits
in bio::bi_flags.

This didn't sound correct, as we are using a shift of 20 for our custom flag.

Turns out, bi_flags has been unsigned short since 4.8: torvalds/linux@c0acf12

And with the introduction of BIO_NO_PAGE_REF in 5.1, we're out of usable bits.
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Move custom bio flag from bi_flags to bi_opf
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