xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/mm/4k: Limit 4k page size config to 64TB virtual address space

Browse Source 
Supporting 512TB requires us to do a order 3 allocation for level 1 page
table (pgd). This results in page allocation failures with certain workloads.
For now limit 4k linux page size config to 64TB.

Fixes: f6eedbba7a ("powerpc/mm/hash: Increase VA range to 128TB")
Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V
2017-06-01 20:05:04 +05:30
committed by Michael Ellerman
parent cec422c11c
commit 92d9dfda8b
4 changed files with 15 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kernel/setup-common.c
View File

@@ -928,7 +928,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_PPC_MM_SLICES
#ifdef CONFIG_PPC64
init_mm.context.addr_limit = TASK_SIZE_128TB;
init_mm.context.addr_limit = DEFAULT_MAP_WINDOW_USER64;
#else
#error "context.addr_limit not initialized."
#endif