1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "Request.h"
#define dout_subsys ceph_subsys_rbd_pwl
#undef dout_prefix
#define dout_prefix *_dout << "librbd::cache::pwl::ssd::Request: " << this << " " \
<< __func__ << ": "
namespace librbd {
namespace cache {
namespace pwl {
namespace ssd {
template <typename T>
void C_WriteRequest<T>::setup_buffer_resources(
uint64_t *bytes_cached, uint64_t *bytes_dirtied, uint64_t *bytes_allocated,
uint64_t *number_lanes, uint64_t *number_log_entries,
uint64_t *number_unpublished_reserves) {
*bytes_cached = 0;
*bytes_allocated = 0;
*number_log_entries = this->image_extents.size();
for (auto &extent : this->image_extents) {
*bytes_cached += extent.second;
*bytes_allocated += round_up_to(extent.second, MIN_WRITE_ALLOC_SSD_SIZE);
}
*bytes_dirtied = *bytes_cached;
}
template <typename T>
std::ostream &operator<<(std::ostream &os,
const C_CompAndWriteRequest<T> &req) {
os << (C_WriteRequest<T>&)req
<< "cmp_bl=" << req.cmp_bl << ", "
<< "read_bl=" << req.read_bl << ", "
<< "compare_succeeded=" << req.compare_succeeded << ", "
<< "mismatch_offset=" << req.mismatch_offset;
return os;
}
template <typename T>
void C_WriteSameRequest<T>::setup_buffer_resources(
uint64_t *bytes_cached, uint64_t *bytes_dirtied, uint64_t *bytes_allocated,
uint64_t *number_lanes, uint64_t *number_log_entries,
uint64_t *number_unpublished_reserves) {
ceph_assert(this->image_extents.size() == 1);
*number_log_entries = 1;
*bytes_dirtied = this->image_extents[0].second;
*bytes_cached = this->bl.length();
*bytes_allocated = round_up_to(*bytes_cached, MIN_WRITE_ALLOC_SSD_SIZE);
}
} // namespace ssd
} // namespace pwl
} // namespace cache
} // namespace librbd
template class librbd::cache::pwl::ssd::C_WriteRequest<librbd::cache::pwl::AbstractWriteLog<librbd::ImageCtx> >;
template class librbd::cache::pwl::ssd::C_WriteSameRequest<librbd::cache::pwl::AbstractWriteLog<librbd::ImageCtx> >;
template class librbd::cache::pwl::ssd::C_CompAndWriteRequest<librbd::cache::pwl::AbstractWriteLog<librbd::ImageCtx> >;
|
