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| author |   Catalin Marinas <catalin.marinas@arm.com> | 2013-02-18 17:51:20 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2013-02-21 13:25:37 +0000 |
| commit | 69dde4c52dbac2891b49ff9723d9c84efc5baf6f (patch) | |
| tree | 771af8f80b5cf838b164613d5319777f30d7e484 /drivers/amba | |
| parent | ARM: 7653/2: do not scale loops_per_jiffy when using a constant delay clock (diff) | |
| download | linux-dev-69dde4c52dbac2891b49ff9723d9c84efc5baf6f.tar.xz linux-dev-69dde4c52dbac2891b49ff9723d9c84efc5baf6f.zip | |
ARM: 7654/1: Preserve L_PTE_VALID in pte_modify()
Following commit 26ffd0d4 (ARM: mm: introduce present, faulting entries
for PAGE_NONE), if a page has been mapped as PROT_NONE, the L_PTE_VALID
bit is cleared by the set_pte_ext() code. With LPAE the software and
hardware pte share the same location and subsequent modifications of pte
range (change_protection()) will leave the L_PTE_VALID bit cleared.
This patch adds the L_PTE_VALID bit to the newprot mask in pte_modify().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Subash Patel <subash.rp@samsung.com>
Tested-by: Subash Patel <subash.rp@samsung.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 3.8.x
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/amba')
0 files changed, 0 insertions, 0 deletions