diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2015-01-16 13:56:38 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-27 08:29:40 -0800 |
| commit | 27f16502f01f51cb20cba470efb913163bd0cb39 (patch) | |
| tree | c44dfb182d41f68ac5e7c5048098628884e3f59a /arch | |
| parent | 6a315939e62f9a18b12bfedf0607830177db32e0 (diff) | |
arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"
commit 0145058c3d30b4319d747f64caa16a9cb15f0581 upstream.
This patch partially reverts commit 421520ba98290a73b35b7644e877a48f18e06004
(only the arm64 part). There is no guarantee that the boot-loader places other
images like dtb in a different page than initrd start/end, especially when the
kernel is built with 64KB pages. When this happens, such pages must not be
freed. The free_reserved_area() already takes care of rounding up "start" and
rounding down "end" to avoid freeing partially used pages.
Reported-by: Peter Maydell <Peter.Maydell@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/mm/init.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 494297c698ca..fff81f02251c 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -333,14 +333,8 @@ static int keep_initrd; void free_initrd_mem(unsigned long start, unsigned long end) { - if (!keep_initrd) { - if (start == initrd_start) - start = round_down(start, PAGE_SIZE); - if (end == initrd_end) - end = round_up(end, PAGE_SIZE); - + if (!keep_initrd) free_reserved_area((void *)start, (void *)end, 0, "initrd"); - } } static int __init keepinitrd_setup(char *__unused) |