xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drbd: allow larger max_discard_sectors

Browse Source 
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>
This commit is contained in:
Lars Ellenberg
2016-06-14 00:26:23 +02:00
committed by Jens Axboe
parent 7435e9018f
commit 505675f96c
3 changed files with 6 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/drbd_limits.h
View File

@@ -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: */