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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:13 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:15 +0200 |
| commit | 92f842eac7ee321c8a0749aba2513541b4ac226f (patch) | |
| tree | 06a9c2302729ecd6d2941f8629da1646c11c714c /arch/s390/include | |
| parent | 6931be0803ddae2791f3c646c8e1e0f82ca26013 (diff) | |
| download | talos-op-linux-92f842eac7ee321c8a0749aba2513541b4ac226f.tar.gz talos-op-linux-92f842eac7ee321c8a0749aba2513541b4ac226f.zip | |
[S390] store indication fault optimization
Use the store indication bit in the translation exception code on
page faults to avoid the protection faults that immediatly follow
the page fault if the access has been a write.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 785229ae39cb..85cd4b039de6 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -38,6 +38,7 @@ extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096))); extern void paging_init(void); extern void vmem_map_init(void); +extern void fault_init(void); /* * The S390 doesn't have any external MMU info: the kernel page |
