[PATCH v2 0/2] Arch-specific user pgtables ceiling
From: Catalin Marinas
Date: Tue Feb 26 2013 - 11:26:38 EST
That's the second version of the series introducing
USER_PGTABLES_CEILING and defining it to TASK_SIZE on ARM.
Russell, do you ack these patches (or let me know if you have further
comments)? I think it's better if they go upstream together rather than
one via akpm and the other via the arm tree.
Changes from v1:
- Only defining USER_PGTABLES_CEILING to TASK_SIZE when CONFIG_ARM_LPAE
is enabled. The classic ARM MMU uses the default ceiling 0.
- Improved commit log stating that the shared page table freeing is
already handled by pgd_free() for the ARM LPAE case.
- Cc'ed stable (starting with 3.3 when ARM LPAE was merged).
Catalin Marinas (1):
arm: Set the page table freeing ceiling to TASK_SIZE
Hugh Dickins (1):
mm: Allow arch code to control the user page table ceiling
arch/arm/include/asm/pgtable.h | 9 +++++++++
fs/exec.c | 4 ++--
include/asm-generic/pgtable.h | 10 ++++++++++
mm/mmap.c | 4 ++--
4 files changed, 23 insertions(+), 4 deletions(-)
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