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| author |   Song Liu <songliubraving@fb.com> | 2016-11-17 15:24:41 -0800 |
|---|---|---|
| committer |   Shaohua Li <shli@fb.com> | 2016-11-18 13:27:24 -0800 |
| commit | 2c7da14b90a01e48b17a028de6050a796cfd6d8d (patch) | |
| tree | 69f8c6710e71f270146978d7e99744962a5eadc8 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | md/r5cache: write-out phase and reclaim support (diff) | |
| download | wireguard-linux-2c7da14b90a01e48b17a028de6050a796cfd6d8d.tar.xz wireguard-linux-2c7da14b90a01e48b17a028de6050a796cfd6d8d.zip | |
md/r5cache: sysfs entry journal_mode
With write cache, journal_mode is the knob to switch between
write-back and write-through.
Below is an example:
root@virt-test:~/# cat /sys/block/md0/md/journal_mode
[write-through] write-back
root@virt-test:~/# echo write-back > /sys/block/md0/md/journal_mode
root@virt-test:~/# cat /sys/block/md0/md/journal_mode
write-through [write-back]
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions