diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/Makefile.objs | 1 | ||||
| -rw-r--r-- | block/accounting.c | 57 |
2 files changed, 58 insertions, 0 deletions
diff --git a/block/Makefile.objs b/block/Makefile.objs index f45f9399aa..c9c8bbbcde 100644 --- a/block/Makefile.objs +++ b/block/Makefile.objs @@ -18,6 +18,7 @@ block-obj-$(CONFIG_RBD) += rbd.o block-obj-$(CONFIG_GLUSTERFS) += gluster.o block-obj-$(CONFIG_ARCHIPELAGO) += archipelago.o block-obj-$(CONFIG_LIBSSH2) += ssh.o +block-obj-y += accounting.o common-obj-y += stream.o common-obj-y += commit.o diff --git a/block/accounting.c b/block/accounting.c new file mode 100644 index 0000000000..702542e2a6 --- /dev/null +++ b/block/accounting.c @@ -0,0 +1,57 @@ +/* + * QEMU System Emulator block accounting + * + * Copyright (c) 2011 Christoph Hellwig + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "block/accounting.h" +#include "block/block_int.h" + +void +bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie, int64_t bytes, + enum BlockAcctType type) +{ + assert(type < BDRV_MAX_IOTYPE); + + cookie->bytes = bytes; + cookie->start_time_ns = get_clock(); + cookie->type = type; +} + +void +bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie) +{ + assert(cookie->type < BDRV_MAX_IOTYPE); + + bs->stats.nr_bytes[cookie->type] += cookie->bytes; + bs->stats.nr_ops[cookie->type]++; + bs->stats.total_time_ns[cookie->type] += get_clock() - + cookie->start_time_ns; +} + + +void bdrv_acct_highest_sector(BlockDriverState *bs, int64_t sector_num, + unsigned int nb_sectors) +{ + if (bs->stats.wr_highest_sector < sector_num + nb_sectors - 1) { + bs->stats.wr_highest_sector = sector_num + nb_sectors - 1; + } +} |