diff options
Diffstat (limited to '0002-powerpc-64s-hash-Fix-512T-hint-detection-to-use-128T.patch')
| -rw-r--r-- | 0002-powerpc-64s-hash-Fix-512T-hint-detection-to-use-128T.patch | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/0002-powerpc-64s-hash-Fix-512T-hint-detection-to-use-128T.patch b/0002-powerpc-64s-hash-Fix-512T-hint-detection-to-use-128T.patch deleted file mode 100644 index fc6b806d7..000000000 --- a/0002-powerpc-64s-hash-Fix-512T-hint-detection-to-use-128T.patch +++ /dev/null @@ -1,49 +0,0 @@ -From 75c7f5172c113af1ea3cf094436c9e03191673e0 Mon Sep 17 00:00:00 2001 -From: Michael Ellerman <mpe@ellerman.id.au> -Date: Tue, 28 Nov 2017 11:26:55 +0100 -Subject: [PATCH 2/5] powerpc/64s/hash: Fix 512T hint detection to use >= 128T - -commit 7ece370996b694ae263025e056ad785afc1be5ab upstream. - -Currently userspace is able to request mmap() search between 128T-512T -by specifying a hint address that is greater than 128T. But that means -a hint of 128T exactly will return an address below 128T, which is -confusing and wrong. - -So fix the logic to check the hint is greater than *or equal* to 128T. - -Fixes: f4ea6dcb08ea ("powerpc/mm: Enable mappings above 128TB") -Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> -Suggested-by: Nicholas Piggin <npiggin@gmail.com> -[mpe: Split out of Nick's bigger patch] -Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - arch/powerpc/mm/slice.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c -index 45f6740dd407..48a5312103a1 100644 ---- a/arch/powerpc/mm/slice.c -+++ b/arch/powerpc/mm/slice.c -@@ -419,7 +419,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, - /* - * Check if we need to expland slice area. - */ -- if (unlikely(addr > mm->context.addr_limit && -+ if (unlikely(addr >= mm->context.addr_limit && - mm->context.addr_limit != TASK_SIZE)) { - mm->context.addr_limit = TASK_SIZE; - on_each_cpu(slice_flush_segments, mm, 1); -@@ -427,7 +427,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, - /* - * This mmap request can allocate upt to 512TB - */ -- if (addr > DEFAULT_MAP_WINDOW) -+ if (addr >= DEFAULT_MAP_WINDOW) - high_limit = mm->context.addr_limit; - else - high_limit = DEFAULT_MAP_WINDOW; --- -2.14.3 - |