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(parent: 8004796) | patch
s390/debug: keep debug data on resize
authorPeter Oberparleiter <oberpar@linux.ibm.com>
Fri, 13 Aug 2021 13:05:02 +0000 (15:05 +0200)
committerHeiko Carstens <hca@linux.ibm.com>
Wed, 25 Aug 2021 09:03:35 +0000 (11:03 +0200)
commit50f5a1eacb5e89f585daa8d13f8c058d7e9d75bc
tree2cdfd8e92bd9e7a122695458c87255f1ec4a0326tree | snapshot
parent8004796566b1e334cd61c29f54ef694f4d993aa8commit | diff
s390/debug: keep debug data on resize

Any previously recorded s390dbf debug data is reset when a debug area
is resized using the 'pages' sysfs attribute. This can make
live-debugging unnecessarily complex.

Fix this by copying existing debug data to the newly allocated debug
area when resizing.

Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
arch/s390/kernel/debug.c diff | blob | history
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