diff options
| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-20 14:43:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-25 07:47:32 +0200 |
| commit | ee71d16d22bb268c1f6a64ef6d3654ace5f1e8c7 (patch) | |
| tree | 8e8ecc1da0ba8947a9b024a435262460d67caeff /arch/s390/mm/gmap.c | |
| parent | Merge tag 'vfio-ccw-20170413' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into features (diff) | |
| download | wireguard-linux-ee71d16d22bb268c1f6a64ef6d3654ace5f1e8c7.tar.xz wireguard-linux-ee71d16d22bb268c1f6a64ef6d3654ace5f1e8c7.zip | |
s390/mm: make TASK_SIZE independent from the number of page table levels
The TASK_SIZE for a process should be maximum possible size of the address
space, 2GB for a 31-bit process and 8PB for a 64-bit process. The number
of page table levels required for a given memory layout is a consequence
of the mapped memory areas and their location.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/gmap.c')
| -rw-r--r-- | arch/s390/mm/gmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index ffb55c935eda..7f6db1e6c048 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -431,7 +431,7 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from, if ((from | to | len) & (PMD_SIZE - 1)) return -EINVAL; if (len == 0 || from + len < from || to + len < to || - from + len - 1 > TASK_MAX_SIZE || to + len - 1 > gmap->asce_end) + from + len - 1 > TASK_SIZE_MAX || to + len - 1 > gmap->asce_end) return -EINVAL; flush = 0; |