[Qemu-devel] [PATCH v3 0/8] qcow2 L2/refcount cache improvements

[Alberto Garcia]

New version of the qcow2 cache patches:

v3:
- Removed a dead comment in patch #3
- New document explaining how to configure the cache sizes

v2: https://lists.nongnu.org/archive/html/qemu-devel/2015-05/msg00833.html
- Don't do pointer arithmetic on void *
- Rename table_addr() to qcow2_cache_get_table_addr()
- Add qcow2_cache_get_table_idx()
- Cast cache size to size_t to prevent overflows
- Make qcow2_cache_put() a void function
- Don't store the cluster size in the cache, get it from the BDS instead

v1: https://lists.nongnu.org/archive/html/qemu-devel/2015-04/msg04355.html

Regards,

Berto

Alberto Garcia (8):
  qcow2: use one single memory block for the L2/refcount cache tables
  qcow2: simplify qcow2_cache_put() and qcow2_cache_entry_mark_dirty()
  qcow2: use an LRU algorithm to replace entries from the L2 cache
  qcow2: remove qcow2_cache_find_entry_to_replace()
  qcow2: use a hash to look for entries in the L2 cache
  qcow2: make qcow2_cache_put() a void function
  qcow2: style fixes in qcow2-cache.c
  docs: document how to configure the qcow2 L2/refcount caches

 block/qcow2-cache.c    | 171 ++++++++++++++++++++++---------------------------
 block/qcow2-cluster.c  |  62 +++++-------------
 block/qcow2-refcount.c |  37 +++--------
 block/qcow2.h          |   5 +-
 docs/qcow2-cache.txt   | 117 +++++++++++++++++++++++++++++++++
 5 files changed, 221 insertions(+), 171 deletions(-)
 create mode 100644 docs/qcow2-cache.txt

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