Hi, Richard Any comment about this patch? thanks On Tue, Jun 03, 2014 at 01:30:44PM +0800, Real Name wrote: > From: Honggang Li <enjoymind...@gmail.com> > > The patch based on linux-next-2014-06-02. > > The old init_maps function does two things: > 1) allocates and initializes one struct page array for bootmem > 2) count the number of total pages > > After removed the source code related to the unnecessary array, the name > 'init_maps' is some kind of improper named, as it just count the number of > total page numbers. So, I renamed the function as 'mem_total_pages'. > > I tested the patch through repeat reboot the uml kernel many times. > [real@name linux-next]$ make ARCH=um defconfig > [real@name linux-next]$ make ARCH=um linux > [real@name linux-next]$ file linux > linux: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically > linked (uses shared libs), for GNU/Linux 2.6.32, not stripped > [real@name linux-next]$ ./linux > ubda=/home/real/linux-next/Fedora20-AMD64-root_fs mem=256m && sync && echo 1 > [real@name linux-next]$ ./linux > ubda=/home/real/linux-next/Fedora20-AMD64-root_fs mem=256m && sync && echo 2 > (repeat reboot the uml kernel many times..) > > Honggang Li (1): > delete unnecessary bootmem struct page array > > arch/um/include/shared/mem_user.h | 2 +- > arch/um/kernel/physmem.c | 32 ++++++-------------------------- > arch/um/kernel/um_arch.c | 7 +------ > 3 files changed, 8 insertions(+), 33 deletions(-) > > -- > 1.8.3.1 >
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