Messages in this thread |  | | From | David Laight <> | Subject | RE: [PATCH v10 6/6] x86/split_lock: Enable split lock detection by kernel parameter | Date | Thu, 21 Nov 2019 17:43:51 +0000 |
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From: Ingo Molnar > Sent: 21 November 2019 17:12 > * Peter Zijlstra <peterz@infradead.org> wrote: ... > > This feature MUST be default enabled, otherwise everything will > > be/remain broken and we'll end up in the situation where you can't use > > it even if you wanted to. > > Agreed.
Before it can be enabled by default someone needs to go through the kernel and fix all the code that abuses the 'bit' functions by using them on int[] instead of long[].
I've only seen one fix go through for one use case of one piece of code that repeatedly uses potentially misaligned int[] arrays for bitmasks.
David
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