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(parent: dc31841) | patch
s390: TASK_SIZE for kernel threads
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 24 Feb 2017 06:43:51 +0000 (07:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 15 Mar 2017 02:02:41 +0000 (10:02 +0800)
commit9d38fd6a4f6c097b32128995a260a55351dc7667
tree9463205a9316699906567f9718a421dba2c86ad5tree | snapshot
parentdc31841fcdce435ed88f87489f9ab09b48b43505commit | diff
s390: TASK_SIZE for kernel threads

commit fb94a687d96c570d46332a4a890f1dcb7310e643 upstream.

Return a sensible value if TASK_SIZE if called from a kernel thread.

This gets us around an issue with copy_mount_options that does a magic
size calculation "TASK_SIZE - (unsigned long)data" while in a kernel
thread and data pointing to kernel space.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/s390/include/asm/processor.h diff | blob | history