...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
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