diff options
| author | Petr Tesarik <ptesarik@suse.cz> | 2012-10-31 16:12:47 +0900 |
|---|---|---|
| committer | Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> | 2013-02-06 13:40:56 +0900 |
| commit | 0aff0e5174d0708bf1bfb039ab863e1fea8a1029 (patch) | |
| tree | 1e71b111c5594b027f0aafbbdf7819ba45985db9 /Makefile | |
| parent | 5d83960cad23b2e7b9012d85d2cbd183ef026837 (diff) | |
[PATCH] keep dumpfile pages in a cache.
Add a simple cache for pages read from the dumpfile.
This is a big win if we read consecutive data from one page, e.g.
page descriptors, or even page table entries.
Note that makedumpfile now always reads a complete page. This was already
the case with kdump-compressed and sadump formats, but makedumpfile was
throwing most of the data away. For the kdump-compressed case, we may
actually save a lot of decompression, too.
I tried to keep the cache small to minimize memory footprint, but it should
be big enough to hold all pages to do 4-level paging plus some data. This
is needed e.g. for vmalloc areas or Xen page frame table data, which are not
contiguous in physical memory.
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -40,8 +40,8 @@ CFLAGS_ARCH += -m32 endif SRC = makedumpfile.c makedumpfile.h diskdump_mod.h sadump_mod.h sadump_info.h -SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c -OBJ_PART = print_info.o dwarf_info.o elf_info.o erase_info.o sadump_info.o +SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c cache.c +OBJ_PART = print_info.o dwarf_info.o elf_info.o erase_info.o sadump_info.o cache.o SRC_ARCH = arch/arm.c arch/x86.c arch/x86_64.c arch/ia64.c arch/ppc64.c arch/s390x.c arch/ppc.c OBJ_ARCH = arch/arm.o arch/x86.o arch/x86_64.o arch/ia64.o arch/ppc64.o arch/s390x.o arch/ppc.o |