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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-24 18:19:10 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-06-12 16:25:54 +0200 |
| commit | 1aea9b3f921003f0880f0676ae85d87c9f1cb4a2 (patch) | |
| tree | 32b9b3100e16b50d515cd05cf249df3f6fb0b779 /arch/s390/mm/mmap.c | |
| parent | s390: update defconfig (diff) | |
| download | linux-dev-1aea9b3f921003f0880f0676ae85d87c9f1cb4a2.tar.xz linux-dev-1aea9b3f921003f0880f0676ae85d87c9f1cb4a2.zip | |
s390/mm: implement 5 level pages tables
Add the logic to upgrade the page table for a 64-bit process to
five levels. This increases the TASK_SIZE from 8PB to 16EB-4K.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/mmap.c')
| -rw-r--r-- | arch/s390/mm/mmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index b017daed6887..8c5f284044ef 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -120,7 +120,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, check_asce_limit: if (addr + len > current->mm->context.asce_limit) { - rc = crst_table_upgrade(mm); + rc = crst_table_upgrade(mm, addr + len); if (rc) return (unsigned long) rc; } @@ -184,7 +184,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, check_asce_limit: if (addr + len > current->mm->context.asce_limit) { - rc = crst_table_upgrade(mm); + rc = crst_table_upgrade(mm, addr + len); if (rc) return (unsigned long) rc; } |