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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-08-11 23:40:24 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2010-10-14 18:38:20 +0200 |
| commit | 0f0601f4ea2f53cfd8bcae060fb03d9bbde070ec (patch) | |
| tree | 42bcbd8edf48c9cee526893108cc69b4918a9f64 /include/linux/drbd_limits.h | |
| parent | 80a40e439e5a3f30b0a6210a1add6d7c33392e54 (diff) | |
| download | op-kernel-dev-0f0601f4ea2f53cfd8bcae060fb03d9bbde070ec.zip op-kernel-dev-0f0601f4ea2f53cfd8bcae060fb03d9bbde070ec.tar.gz | |
drbd: new configuration parameter c-min-rate
We now track the data rate of locally submitted resync related requests,
and can thus detect non-resync activity on the lower level device.
If the current sync rate is above c-min-rate, and the lower level device
appears to be busy, we throttle the resyncer.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'include/linux/drbd_limits.h')
| -rw-r--r-- | include/linux/drbd_limits.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index 06dbba4..0b24ded 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -150,5 +150,9 @@ #define DRBD_C_MAX_RATE_MAX (4 << 20) #define DRBD_C_MAX_RATE_DEF 102400 +#define DRBD_C_MIN_RATE_MIN 0 /* kByte/sec */ +#define DRBD_C_MIN_RATE_MAX (4 << 20) +#define DRBD_C_MIN_RATE_DEF 4096 + #undef RANGE #endif |
