[Crash-utility] [PATCH v2 0/7] zram related changes for zram support of crash gcore command

[HATAYAMA Daisuke]

This patch set is to make changes I found necessary during development
of zram support for crash gcore command.

Here are tiny script and program I made to test the zram feature.
This may help your reviewing.

    https://github.com/d-hatayama/some_stuff_for_crash_zram_devel

v2:
 - Fix compilation error when without lzo library, which is fixed by
   newly added 5-th patch to include zram even without lzo library.
 - Add 6-th patch aiming to warn that given crash utility is built
   without lzo library when encoutering zram pages.

HATAYAMA Daisuke (7):
  diskdump, zram: cleanup try_zram_decompress()
  diskdump, zram: initialize zram symbol information when needed
  diskname, zram: fix fault error when reading zram disk with no symbol
    information
  diskname, zram: Notify necessity of loading zram module
  zram: include zram code even without lzo library
  zram: Add warning message when crash is built without lzo library
  memory, zram: introduce and export readswap()

 defs.h     |   3 +-
 diskdump.c | 234 ++++++++++++++++++++++++++++++++++++-------------------------
 memory.c   |   5 +-
 3 files changed, 143 insertions(+), 99 deletions(-)

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1.8.3.1