arm64: vdso: clean up vdso_pagelist initialization

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Remove some unnecessary bits that were apparently carried over from
another architecture's implementation:

- No need to get_page() the vdso text/data - these are part of the
  kernel image.
- No need for ClearPageReserved on the vdso text.
- No need to vmap the first text page to check the ELF header - this
  can be done through &vdso_start.

Also some minor cleanup:
- Use kcalloc for vdso_pagelist array allocation.
- Don't print on allocation failure, slab/slub will do that for us.

Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Nathan Lynch 2014-02-11 22:28:42 +00:00 • committed by Catalin Marinas

parent bb10eb7b4d

commit 16fb1a9bec

1 changed files with 12 additions and 30 deletions

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arch/arm64/kernel/vdso.c

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