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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-01-12 13:45:29 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-16 23:47:14 +1100 |
| commit | 351750331fc1580cdb60d2efef04238f5faa89fe (patch) | |
| tree | fab5ee5e236ff91fd63640f27f142bee3b691cbb /drivers/dma-buf/sync_debug.c | |
| parent | 812fadcb941a81d1f3948b10a95a4dce663da3e4 (diff) | |
| download | linux-351750331fc1580cdb60d2efef04238f5faa89fe.tar.bz2 | |
powerpc/mm: Introduce _PAGE_NA
Today, PAGE_NONE is defined as a page not having _PAGE_USER.
In some circunstances, when the CPU supports it, it might be
better to be able to flag a page with NO ACCESS.
In a following patch, the 8xx will switch user access being flagged
in the PMD, therefore it will not be possible anymore to use
_PAGE_USER as a way to flag a page with no access.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/dma-buf/sync_debug.c')
0 files changed, 0 insertions, 0 deletions