diff options
| author | Hugh Dickins <[email protected]> | 2013-04-29 15:07:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2013-04-29 15:54:34 -0700 |
| commit | 6ee8630e02be6dd89926ca0fbc21af68b23dc087 (patch) | |
| tree | 04c4cb8546541d59dac8d92ac1c7d7ee03ddc362 /net/lapb/lapb_iface.c | |
| parent | acb6d558f4c8fbacc8e774c9d7737220a3777882 (diff) | |
mm: allow arch code to control the user page table ceiling
On architectures where a pgd entry may be shared between user and kernel
(e.g. ARM+LPAE), freeing page tables needs a ceiling other than 0.
This patch introduces a generic USER_PGTABLES_CEILING that arch code can
override. It is the responsibility of the arch code setting the ceiling
to ensure the complete freeing of the page tables (usually in
pgd_free()).
[[email protected]: commit log; shift_arg_pages(), asm-generic/pgtables.h changes]
Signed-off-by: Hugh Dickins <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Cc: Russell King <[email protected]>
Cc: <[email protected]> [3.3+]
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions