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authorJohn Ogness <john.ogness@linutronix.de>2020-11-25 23:26:59 +0106
committerSimon Horman <horms@verge.net.au>2020-11-30 17:33:25 +0100
commit4149df9005f2cdd2ecf70058dfe7d72f48c3a68c (patch)
tree5e580b3783963ee2bde88f5d60bd40590ffb0a99 /kexec
parent6b5667debcb8ea6d3da88692a6c51049a2c6013d (diff)
printk: add support for lockless ringbuffer
Linux 5.10 moved to a new lockless ringbuffer. The new ringbuffer is structured completely different to the previous iterations. Add support for retrieving the ringbuffer using vmcoreinfo. The new ringbuffer is detected based on the availability of the "prb" symbol. Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Simon Horman <horms@verge.net.au>
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