FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-01-15 22:21:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"

Browse Source 
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>
This commit is contained in:
Catalin Marinas 2015-01-16 13:56:38 +00:00 committed by Will Deacon
parent cd25b85ba6
commit 0145058c3d
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/mm/init.c
View File

@ -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)