diff options
Diffstat (limited to 'src/librbd/cache/pwl/ssd/LogEntry.cc')
-rw-r--r-- | src/librbd/cache/pwl/ssd/LogEntry.cc | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/librbd/cache/pwl/ssd/LogEntry.cc b/src/librbd/cache/pwl/ssd/LogEntry.cc new file mode 100644 index 000000000..0e6edd87b --- /dev/null +++ b/src/librbd/cache/pwl/ssd/LogEntry.cc @@ -0,0 +1,63 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "librbd/cache/ImageWriteback.h" +#include "librbd/cache/pwl/ssd/LogEntry.h" + +#define dout_subsys ceph_subsys_rbd_pwl +#undef dout_prefix +#define dout_prefix *_dout << "librbd::cache::pwl::ssd::WriteLogEntry: " \ + << this << " " << __func__ << ": " + +namespace librbd { +namespace cache { +namespace pwl { +namespace ssd { + +void WriteLogEntry::init_cache_bl( + bufferlist &src_bl, uint64_t off, uint64_t len) { + cache_bl.clear(); + cache_bl.substr_of(src_bl, off, len); +} + +buffer::list& WriteLogEntry::get_cache_bl() { + return cache_bl; +} + +void WriteLogEntry::copy_cache_bl(bufferlist *out) { + std::lock_guard locker(m_entry_bl_lock); + *out = cache_bl; +} + +void WriteLogEntry::remove_cache_bl() { + std::lock_guard locker(m_entry_bl_lock); + cache_bl.clear(); +} + +unsigned int WriteLogEntry::get_aligned_data_size() const { + if (cache_bl.length()) { + return round_up_to(cache_bl.length(), MIN_WRITE_ALLOC_SSD_SIZE); + } + return round_up_to(write_bytes(), MIN_WRITE_ALLOC_SSD_SIZE); +} + +void WriteLogEntry::writeback_bl( + librbd::cache::ImageWritebackInterface &image_writeback, + Context *ctx, ceph::bufferlist&& bl) { + image_writeback.aio_write({{ram_entry.image_offset_bytes, + ram_entry.write_bytes}}, + std::move(bl), 0, ctx); +} + +void WriteSameLogEntry::writeback_bl( + librbd::cache::ImageWritebackInterface &image_writeback, + Context *ctx, ceph::bufferlist &&bl) { + image_writeback.aio_writesame(ram_entry.image_offset_bytes, + ram_entry.write_bytes, + std::move(bl), 0, ctx); +} + +} // namespace ssd +} // namespace pwl +} // namespace cache +} // namespace librbd |