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| author | Catalin Marinas <catalin.marinas@arm.com> | 2015-01-16 16:56:38 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-01-16 16:57:33 +0300 |
| commit | 0145058c3d30b4319d747f64caa16a9cb15f0581 (patch) | |
| tree | 196c3c624f432c0e4f31153c6d6f8b7c38ed3077 /arch | |
| parent | cd25b85ba6ee1f67c6458ba9d990170728d60828 (diff) | |
| download | linux-0145058c3d30b4319d747f64caa16a9cb15f0581.tar.xz | |
arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"
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.
Cc: <stable@vger.kernel.org> # 3.17+
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>
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 bac492c12fcc..c95464a33f36 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -335,14 +335,8 @@ 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) |