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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-04-27 12:42:18 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-05-02 15:50:22 +0200 |
| commit | d009f4d8860defaea65ea7573818b96f3c4b171e (patch) | |
| tree | b4ddaf9bc9ac7a88a5b051a8b5e8e536391e506a /drivers/s390 | |
| parent | s390/mem_detect: move memory detection code to mm folder (diff) | |
| download | linux-d009f4d8860defaea65ea7573818b96f3c4b171e.tar.xz linux-d009f4d8860defaea65ea7573818b96f3c4b171e.zip | |
s390/mem_detect: fix lockdep irq tracing
When disabling and enabling interrupts we must tell lockdep.
So use local_irq_save()/restore() to disable and enable interrupts.
The DAT disabling/enabling get handled separately now.
Note: we may not call trace_hardirqs_on() with DAT disabled, since
the generic code may access vmalloc'ed data structures.
Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions