Liam Mark 4738608080 FROMGIT: mm/memory_hotplug: rate limit page migration warnings ...

When offlining memory the system can attempt to migrate a lot of pages, if
there are problems with migration this can flood the logs.  Printing all
the data hogs the CPU and cause some RT threads to run for a long time,
which may have some bad consequences.

Rate limit the page migration warnings in order to avoid this.

Link: https://lkml.kernel.org/r/20210505140542.24935-1-georgi.djakov@linaro.org
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Bug: 187917022
(cherry picked from commit 6be9af0e0f77 https: //github.com/hnaz/linux-mm.git v5.13-rc1-mmots-2021-05-10-22-15)
Change-Id: I6754d380f8c31cf9b699c242edacf593807ef2b1
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>

2021-05-12 17:17:21 -07:00

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