diff options
| author | Alberto Garcia <berto@igalia.com> | 2015-10-28 17:33:02 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-11-12 16:22:45 +0100 |
| commit | cb38fffbc968e797ae32039b1e2c47b940b30cb4 (patch) | |
| tree | d28bdc71d24992460b50951def2de9c3a129f2c3 /include/block | |
| parent | bd797fc15b4290e02c219b7cd6289a33cd6cd18b (diff) | |
block: Add idle_time_ns to BlockDeviceStats
This patch adds the new field 'idle_time_ns' to the BlockDeviceStats
structure, indicating the time that has passed since the previous I/O
operation.
It also adds the block_acct_idle_time_ns() call, to ensure that all
references to the clock type used for accounting are in the same
place. This will later allow us to use a different clock for iotests.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 7d8cfcf931453e1a2443e6626e8c1edc347c7c8a.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/accounting.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/accounting.h b/include/block/accounting.h index 66637cdfed..4b2b999bd0 100644 --- a/include/block/accounting.h +++ b/include/block/accounting.h @@ -40,6 +40,7 @@ typedef struct BlockAcctStats { uint64_t nr_ops[BLOCK_MAX_IOTYPE]; uint64_t total_time_ns[BLOCK_MAX_IOTYPE]; uint64_t merged[BLOCK_MAX_IOTYPE]; + int64_t last_access_time_ns; } BlockAcctStats; typedef struct BlockAcctCookie { @@ -53,5 +54,6 @@ void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie, void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie); void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type, int num_requests); +int64_t block_acct_idle_time_ns(BlockAcctStats *stats); #endif |