[RFC] [PATCHv4 0/4] reiser4: discard support: initial implementation.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



...I'm back on board, now more or less till September.

v1: - initial implementation (patches 1, 2)

v2: - cleanup, fixes discovered in debug mode
    - saner logging
    - assertions
    - enablement of discard through mount option

v3: - fixed the extent merge loop in discard_atom()

v4: - squashed fix-ups into the main patch (with exception of reiser4_debug())
    - fixed bug in usage of division ops discovered while building on ARM

BTW, it seems that I've understood the logic of block allocation/deallocation
(the disk space leak problem you mentioned earlier), and... this breaks the
idea of ->discard_set (i. e. "log everything").
I'll write a follow-up once I verify the (in-)consistency of my thoughts :)

Ivan Shapovalov (4):
  reiser4: discard support: make space_allocator's check_blocks() reusable.
  reiser4: add reiser4_debug(): a conditional equivalent of reiser4_log().
  reiser4: discard support: initial implementation using extent lists.
  reiser4: discard support: enable discard functionality through a mount option.

 fs/reiser4/Makefile                       |   1 +
 fs/reiser4/block_alloc.c                  |  38 ++-
 fs/reiser4/block_alloc.h                  |  14 +-
 fs/reiser4/debug.h                        |   4 +
 fs/reiser4/dformat.h                      |   2 +
 fs/reiser4/discard.c                      | 488 ++++++++++++++++++++++++++++++
 fs/reiser4/discard.h                      |  38 +++
 fs/reiser4/forward.h                      |   1 +
 fs/reiser4/init_super.c                   |   2 +
 fs/reiser4/plugin/space/bitmap.c          |  81 +++--
 fs/reiser4/plugin/space/bitmap.h          |   2 +-
 fs/reiser4/plugin/space/space_allocator.h |   4 +-
 fs/reiser4/super.h                        |   4 +-
 fs/reiser4/txnmgr.c                       |  19 ++
 fs/reiser4/txnmgr.h                       |   5 +
 fs/reiser4/znode.c                        |   9 +-
 16 files changed, 657 insertions(+), 55 deletions(-)
 create mode 100644 fs/reiser4/discard.c
 create mode 100644 fs/reiser4/discard.h

-- 
2.0.0

--
To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux File System Development]     [Linux BTRFS]     [Linux NFS]     [Linux Filesystems]     [Ext4 Filesystem]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Resources]

  Powered by Linux