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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2013-11-19 12:26:09 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-11-20 09:04:53 +0100
commitaa7e04b3808614980d474735cdb0bf35ac5cdf26 (patch)
treebb6e80bf8f9779b33c8c54baa6c09fa049c9ec33 /drivers/s390
parentb4789b8e6be3151a955ade74872822f30e8cd914 (diff)
s390/signal: always restore saved runtime instrumentation psw bit
Commit "s390: fix handling of runtime instrumentation psw bit" (5ebf250dab) changed the behavior of setting the runtime instrumentation psw bit. This commit restores the original logic: 1. When returning from the signal handler, the runtime instrumentation psw bit is restored to its saved state. 2. If the runtime instrumentation psw bit is enabled during the signal handler, it is always turned off when leaving the signal handler. The saved state is restored as described in 1. That also implies that turning on runtime instrumentation in the signal handler is only effective while running in the signal context. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions