kevin/linux
1
Fork 0
Code
3afa39493d
linux/arch/x86/mm
History
Yinghai Lu 3afa39493d x86: keep the /proc/meminfo page count correct 
Impact: get correct page count in /proc/meminfo

found page count in /proc/meminfo is nor correct on 1G system in VirtualBox 2.0.4

# cat /proc/meminfo
MemTotal:        1017508 kB
MemFree:          822700 kB
Buffers:            1456 kB
Cached:            26632 kB
SwapCached:            0 kB
...
Hugepagesize:       2048 kB
DirectMap4k:      4032 kB
DirectMap2M:  18446744073709549568 kB

with this patch get:
...
DirectMap4k:      4032 kB
DirectMap2M:   1044480 kB

which is consistent to kernel_page_tables
---[ Low Kernel Mapping ]---
0xffff880000000000-0xffff880000001000           4K     RW     PCD     GLB x  pte
0xffff880000001000-0xffff88000009f000         632K     RW             GLB x  pte
0xffff88000009f000-0xffff8800000a0000           4K     RW     PCD     GLB x  pte
0xffff8800000a0000-0xffff880000200000        1408K     RW             GLB x  pte
0xffff880000200000-0xffff88003fe00000        1020M     RW         PSE GLB x  pmd
0xffff88003fe00000-0xffff88003fff0000        1984K     RW             GLB NX pte
0xffff88003fff0000-0xffff880040000000          64K                           pte
0xffff880040000000-0xffff888000000000         511G                           pud
0xffff888000000000-0xffffc20000000000       58880G                           pgd

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27 18:55:26 +01:00
..
dump_pagetables.c x86: another user of PTE_FLAGS_MASK 2008-08-20 12:38:41 +02:00
extable.c
fault.c Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-16 15:08:45 -07:00
gup.c x86: make mm/gup.c more virtualization friendly 2008-10-13 10:21:18 +02:00
highmem_32.c Export kmap_atomic_pfn for DRM-GEM. 2008-10-18 07:10:12 +10:00
hugetlbpage.c x86: add hugepagesz option on 64-bit 2008-07-24 10:47:19 -07:00
init_32.c x86: add _PAGE_IOMAP pte flag for IO mappings 2008-10-13 10:20:56 +02:00
init_64.c x86: keep the /proc/meminfo page count correct 2008-10-27 18:55:26 +01:00
ioremap.c Merge branches 'core/softlockup', 'core/softirq', 'core/resources', 'core/printk' and 'core/misc' into core-v28-for-linus 2008-10-15 12:48:44 +02:00
k8topology_64.c x86: remove end_pfn in 64bit 2008-07-08 13:10:38 +02:00
kmmio.c
Makefile x86: rename discontig_32.c to numa_32.c 2008-10-13 10:19:59 +02:00
memtest.c x86: memtest fix use of reserve_early() 2008-10-22 17:08:06 +02:00
mmap.c
mmio-mod.c mmiotrace: remove left-over marker cruft 2008-10-14 10:37:17 +02:00
numa_32.c x86: rename discontig_32.c to numa_32.c 2008-10-13 10:19:59 +02:00
numa_64.c x86: convert numa_64.c from round_up to roundup 2008-07-26 15:39:21 +02:00
pageattr-test.c x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious 2008-09-05 17:09:57 +02:00
pageattr.c proc: switch /proc/meminfo to seq_file 2008-10-23 13:52:40 +04:00
pat.c x86, pat: cleanups 2008-10-10 19:29:20 +02:00
pf_in.c x86: fix mmiotrace 8-bit register decoding 2008-10-14 10:33:50 +02:00
pf_in.h
pgtable_32.c i386: vmalloc size fix 2008-08-21 10:13:21 +02:00
pgtable.c x86: pgd_{c,d}tor() cleanup 2008-09-06 19:47:09 +02:00
srat_32.c x86: don't call e820_regiter_active_regions if out of range on node 2008-08-14 11:35:52 +02:00
srat_64.c x86, uv: add early detection of UV system types 2008-10-13 10:21:51 +02:00
testmmiotrace.c x86 mmiotrace: implement mmiotrace_printk() 2008-10-14 10:37:11 +02:00