| Message ID | 1405951233-2399-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 20925bcf4e2a..e1134d04e07e 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -51,6 +51,8 @@ #define TASK_SIZE_32 UL(0x100000000) #define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \ TASK_SIZE_32 : TASK_SIZE_64) +#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \ + TASK_SIZE_32 : TASK_SIZE_64) #else #define TASK_SIZE TASK_SIZE_64 #endif /* CONFIG_COMPAT */
This is a note to let you know that I have just added a patch titled arm64: implement TASK_SIZE_OF to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.11.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From 3c760e7c545eb452c85869b7c6395cc8d1852947 Mon Sep 17 00:00:00 2001 From: Colin Cross <ccross@android.com> Date: Wed, 18 Jun 2014 21:10:09 +0100 Subject: [PATCH 27/41] arm64: implement TASK_SIZE_OF commit fa2ec3ea10bd377f9d55772b1dab65178425a1a2 upstream. include/linux/sched.h implements TASK_SIZE_OF as TASK_SIZE if it is not set by the architecture headers. TASK_SIZE uses the current task to determine the size of the virtual address space. On a 64-bit kernel this will cause reading /proc/pid/pagemap of a 64-bit process from a 32-bit process to return EOF when it reads past 0xffffffff. Implement TASK_SIZE_OF exactly the same as TASK_SIZE with test_tsk_thread_flag instead of test_thread_flag. Signed-off-by: Colin Cross <ccross@android.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- arch/arm64/include/asm/memory.h | 2 ++ 1 file changed, 2 insertions(+) -- 1.9.1