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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2016-06-14 00:26:23 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-06-13 21:43:05 -0600 |
| commit | 505675f96cf0f169647a18c3dda1f373eca957b1 (patch) | |
| tree | cd9e16e66de8d3abfc9e69eb9a14bfe9b5f72569 /include/linux/drbd_limits.h | |
| parent | 7435e9018f9141e38d856229475335c8e757a497 (diff) | |
| download | linux-505675f96cf0f169647a18c3dda1f373eca957b1.tar.gz | |
drbd: allow larger max_discard_sectors
Make sure we have at least 67 (> AL_UPDATES_PER_TRANSACTION)
al-extents available, and allow up to half of that to be
discarded in one bio.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/drbd_limits.h')
| -rw-r--r-- | include/linux/drbd_limits.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index a351c40087cd..ddac68422a96 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -126,8 +126,7 @@ #define DRBD_RESYNC_RATE_DEF 250 #define DRBD_RESYNC_RATE_SCALE 'k' /* kilobytes */ - /* less than 7 would hit performance unnecessarily. */ -#define DRBD_AL_EXTENTS_MIN 7 +#define DRBD_AL_EXTENTS_MIN 67 /* we use u16 as "slot number", (u16)~0 is "FREE". * If you use >= 292 kB on-disk ring buffer, * this is the maximum you can use: */ |