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Date:   Mon, 27 May 2019 14:10:56 -0700
From:   Rick Edgecombe <>
        Rick Edgecombe <>
Subject: [PATCH v5 0/2] Fix issues with vmalloc flush flag

These two patches address issues with the recently added
VM_FLUSH_RESET_PERMS vmalloc flag.

Patch 1 addresses an issue that could cause a crash after other
architectures besides x86 rely on this path.

Patch 2 addresses an issue where in a rare case strange arguments
could be provided to flush_tlb_kernel_range(). 

 - Update commit messages with info that the first issue will actually
   not cause problems today
 - Avoid re-use of variable (PeterZ)

 - Drop patch that switched vm_unmap_alias() calls to regular flush (Andy)
 - Add patch to address correctness previously fixed in dropped patch

 - Split into two patches (Andy)

 - Update commit message with more detail
 - Fix flush end range on !CONFIG_ARCH_HAS_SET_DIRECT_MAP case

Rick Edgecombe (2):
  vmalloc: Fix calculation of direct map addr range
  vmalloc: Avoid rare case of flushing tlb with weird arguments

 mm/vmalloc.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)


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