[00/24] Metadump v2

Message

Chandan Babu R May 23, 2023, 9 a.m. UTC

Hi all,

This patch series extends metadump/mdrestore tools to be able to dump
contents of an external log device. It also adds the ability to copy
larger blocks (e.g. 4096 bytes instead of 512 bytes) into the metadump
file. These objectives are accomplished by introducing a new metadump
file format.

I have tested the patchset by extending metadump/mdrestore tests in
fstests to cover the newly introduced metadump v2 format. The tests
can be found at
https://github.com/chandanr/xfstests/commits/metadump-v2.

The patch series can also be obtained from
https://github.com/chandanr/xfsprogs-dev/commits/metadump-v2.

Chandan Babu R (24):
  metadump: Use boolean values true/false instead of 1/0
  mdrestore: Fix logic used to check if target device is large enough
  metadump: Define and use struct metadump
  metadump: Add initialization and release functions
  set_cur: Add support to read from external log device
  metadump: Dump external log device contents
  metadump: Postpone invocation of init_metadump()
  metadump: Introduce struct metadump_ops
  metadump: Introduce metadump v1 operations
  metadump: Rename XFS_MD_MAGIC to XFS_MD_MAGIC_V1
  metadump: Define metadump v2 ondisk format structures and macros
  metadump: Define metadump ops for v2 format
  metadump: Add support for passing version option
  xfs_metadump.sh: Add support for passing version option
  xfs_metadump.8: Add description for the newly introduced -v option
  mdrestore: Define and use struct mdrestore
  mdrestore: Add open_device(), read_header() and show_info() functions
  mdrestore: Introduce struct mdrestore_ops
  mdrestore: Introduce mdrestore v1 operations
  mdrestore: Detect metadump version from metadump image
  mdrestore: Extract target device size verification into a function
  mdrestore: Define mdrestore ops for v2 format
  mdrestore: Add support for passing log device as an argument
  xfs_mdrestore.8: Add description for the newly introduced -l option

 db/io.c                   |  22 +-
 db/metadump.c             | 718 +++++++++++++++++++++++---------------
 db/type.c                 |   2 +
 db/type.h                 |   2 +-
 db/xfs_metadump.sh        |   3 +-
 include/xfs_metadump.h    |  34 +-
 man/man8/xfs_mdrestore.8  |   8 +
 man/man8/xfs_metadump.8   |  10 +
 mdrestore/xfs_mdrestore.c | 450 ++++++++++++++++++------
 9 files changed, 847 insertions(+), 402 deletions(-)