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authorPhilipp Reisner <philipp.reisner@linbit.com>2010-08-23 15:18:33 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2010-10-14 18:38:25 +0200
commitd53733893dc43f4ebb5be510863c5debf0f8990b (patch)
treedbc9bb129b6c4774747be8b1d68dee6d18052637 /drivers/block/drbd/drbd_int.h
parent02918be2273a6b086292e0d85b740336eda46e36 (diff)
drbd: Actually allow BIOs up to 128k (was 32k).
Now we have multiple BIOs per ee, packets with a 32 bit length field, it gets time to use these goodies. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
-rw-r--r--drivers/block/drbd/drbd_int.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index db7e65531af..58dc02bd16c 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1389,11 +1389,13 @@ struct bm_extent {
#endif
/* Sector shift value for the "hash" functions of tl_hash and ee_hash tables.
- * With a value of 6 all IO in one 32K block make it to the same slot of the
+ * With a value of 8 all IO in one 128K block make it to the same slot of the
* hash table. */
-#define HT_SHIFT 6
+#define HT_SHIFT 8
#define DRBD_MAX_SEGMENT_SIZE (1U<<(9+HT_SHIFT))
+#define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */
+
/* Number of elements in the app_reads_hash */
#define APP_R_HSIZE 15