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git.proxmox.com Git - ceph.git/blob - ceph/src/os/bluestore/aio.cc
1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
7 #if defined(HAVE_LIBAIO)
10 int aio_queue_t::submit(aio_t
&aio
, int *retries
)
12 // 2^16 * 125us = ~8 seconds, so max sleep is ~16 seconds
15 iocb
*piocb
= &aio
.iocb
;
18 r
= io_submit(ctx
, 1, &piocb
);
20 if (r
== -EAGAIN
&& attempts
-- > 0) {
33 int aio_queue_t::submit_batch(aio_iter begin
, aio_iter end
,
34 uint16_t aios_size
, void *priv
,
37 // 2^16 * 125us = ~8 seconds, so max sleep is ~16 seconds
42 struct iocb
*piocb
[aios_size
];
46 *(piocb
+left
) = &cur
->iocb
;
52 int r
= io_submit(ctx
, std::min(left
, max_iodepth
), piocb
+ done
);
54 if (r
== -EAGAIN
&& attempts
-- > 0) {
71 int aio_queue_t::get_next_completed(int timeout_ms
, aio_t
**paio
, int max
)
76 (timeout_ms
% 1000) * 1000 * 1000
81 r
= io_getevents(ctx
, 1, max
, event
, &t
);
82 } while (r
== -EINTR
);
84 for (int i
=0; i
<r
; ++i
) {
85 paio
[i
] = (aio_t
*)event
[i
].obj
;
86 paio
[i
]->rval
= event
[i
].res
;