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| author | Stephane Gasparini <stephane.gasparini@linux.intel.com> | 2016-02-09 19:07:38 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-02-09 19:27:01 +0300 |
| commit | d57d611505d911c6f9f81cd9bd6dbd293d66dd9f (patch) | |
| tree | e4616ad08b32aa47a3050e42e706d20212c8955f /drivers/nvme/host | |
| parent | 09954bad448791ef01202351d437abdd9497a804 (diff) | |
| download | linux-d57d611505d911c6f9f81cd9bd6dbd293d66dd9f.tar.xz | |
kernel/fs: fix I/O wait not accounted for RW O_DSYNC
When a process is doing Random Write with O_DSYNC flag
the I/O wait are not accounted in the kernel (get_cpu_iowait_time_us).
This is preventing the governor or the cpufreq driver to account for
I/O wait and thus use the right pstate
Signed-off-by: Stephane Gasparini <stephane.gasparini@linux.intel.com>
Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host')
0 files changed, 0 insertions, 0 deletions