diff options
| author | Linus Walleij <[email protected]> | 2011-09-29 09:37:23 +0100 |
|---|---|---|
| committer | Russell King <[email protected]> | 2011-10-01 17:49:18 +0100 |
| commit | 002ea9eefec98dada56fd5f8e432a4e8570c2a26 (patch) | |
| tree | d97e36ac8ad876269cd26d28c0d368c0ec35c75e | |
| parent | 47ea91b4052d9e94b9dca5d7a3d947fbebd07ba9 (diff) | |
ARM: 7113/1: mm: Align bank start to MAX_ORDER_NR_PAGES
The VM subsystem assumes that there are valid memmap entries from
the bank start aligned to MAX_ORDER_NR_PAGES.
On the Ux500 we have a lot of mem=N arguments on the commandline
triggering this bug several times over and causing kernel
oops messages.
Cc: [email protected]
Cc: Michael Bohan <[email protected]>
Cc: Nicolas Pitre <[email protected]>
Signed-off-by: Johan Palsson <[email protected]>
Signed-off-by: Rabin Vincent <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Russell King <[email protected]>
| -rw-r--r-- | arch/arm/mm/init.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index cc7e2d8be9aa..f8037ba338ac 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -496,6 +496,13 @@ static void __init free_unused_memmap(struct meminfo *mi) */ bank_start = min(bank_start, ALIGN(prev_bank_end, PAGES_PER_SECTION)); +#else + /* + * Align down here since the VM subsystem insists that the + * memmap entries are valid from the bank start aligned to + * MAX_ORDER_NR_PAGES. + */ + bank_start = round_down(bank_start, MAX_ORDER_NR_PAGES); #endif /* * If we had a previous bank, and there is a space |