[dm-devel] Patch "dm integrity: increase RECALC_SECTORS to improve recalculate speed" has been added to the 5.10-stable tree

[Sasha Levin]

This is a note to let you know that I've just added the patch titled

    dm integrity: increase RECALC_SECTORS to improve recalculate speed

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     dm-integrity-increase-recalc_sectors-to-improve-reca.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable at vger.kernel.org> know about it.



commit 936074a371711bae37d929bb0376717b0e3b0293
Author: Mikulas Patocka <mpatocka at redhat.com>
Date:   Tue Apr 27 11:57:43 2021 -0400

    dm integrity: increase RECALC_SECTORS to improve recalculate speed
    
    [ Upstream commit b1a2b9332050c7ae32a22c2c74bc443e39f37b23 ]
    
    Increase RECALC_SECTORS because it improves recalculate speed slightly
    (from 390kiB/s to 410kiB/s).
    
    Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>
    Signed-off-by: Mike Snitzer <snitzer at redhat.com>
    Stable-dep-of: 6d50eb472593 ("dm integrity: reduce vmalloc space footprint on 32-bit architectures")
    Signed-off-by: Sasha Levin <sashal at kernel.org>

diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 7599a122c9563..ea08eb4ed0d95 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -35,7 +35,7 @@
 #define MIN_LOG2_INTERLEAVE_SECTORS	3
 #define MAX_LOG2_INTERLEAVE_SECTORS	31
 #define METADATA_WORKQUEUE_MAX_ACTIVE	16
-#define RECALC_SECTORS			8192
+#define RECALC_SECTORS			32768
 #define RECALC_WRITE_SUPER		16
 #define BITMAP_BLOCK_SIZE		4096	/* don't change it */
 #define BITMAP_FLUSH_INTERVAL		(10 * HZ)