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Fixed: line break of pr_cont not take effect

PATCH John Ogness 2 participants 2 messages May 23, 2020 – May 26, 2020 1 message not in the archive

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John Ogness

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Thank you. I added Sebastian Siewior and linux-rt-users to the addresses since this is a patch against PREEMPT_RT.

Quoted 11 lines · On 2020-05-23, <[email protected]> wrote:

Line break of pr_cont not take effect.
Use several pr_cont to print continuous paragraph, it is expected to have line break when line ends up with '\n', however the paragraph does not have line break
-printk_kthread_func will not print info before log_store insert msg
into printk_rb, and pr_cont calls cont_add to keep data in buffer. cont_add only when the following conditions are met insert msg to printk_rb
1.cpu != c->cpu_owner || !(flags & LOG_CONT)
2.c->len + len > sizeof(c->buf)

Quoted 1 line
Signed-off-by 汪勇10269566 <[email protected]>
Acked-by John Ogness <[email protected]>

@Sebastian: The original patch submission is here[0].

Thanks,
John Ogness

[0] https://lkml.kernel.org/r/[email protected]