Messages in this thread | | | Date | Mon, 8 Dec 2008 13:50:58 +0100 | From | Ingo Molnar <> | Subject | Re: x86: Change static allocation of trampoline area |
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* Rafael J. Wysocki <rjw@sisk.pl> wrote:
> From: Rafael J. Wysocki <rjw@sisk.pl> > Subject: x86: Change static allocation of trampoline area > Impact: Improvement > > While debugging a suspend-to-RAM related issue it occured to me that > if the trampoline code had grown past 4 KB, we would have been > allocating too little memory for it, since the 4 KB size of the > trampoline is hardcoded into arch/x86/kernel/e820.c . Change that > by making the kernel compute the trampoline size and allocate as much > memory as necessary. > > Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> > --- > arch/x86/include/asm/trampoline.h | 7 +++++++ > arch/x86/kernel/e820.c | 16 ---------------- > arch/x86/kernel/head32.c | 3 +++ > arch/x86/kernel/head64.c | 3 +++ > arch/x86/kernel/trampoline.c | 19 +++++++++++++++++-- > 5 files changed, 30 insertions(+), 18 deletions(-)
applied to tip/x86/setup-memory, thanks Rafael!
Ingo
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