[merged mm-stable] zram-set-default-primary-compressor-in-zram_destroy_comps.patch removed from -mm tree

The quilt patch titled
     Subject: zram: set default primary compressor in zram_destroy_comps()
has been removed from the -mm tree.  Its filename was
     zram-set-default-primary-compressor-in-zram_destroy_comps.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Sergey Senozhatsky <[email protected]>
Subject: zram: set default primary compressor in zram_destroy_comps()
Date: Wed, 29 Jul 2026 13:57:35 +0900

Patch series "zram: fix zram issues reported by sashiko".

Sashiko drove by and reported [1] a couple of zram issues:
a possible BUG_ON() in zlib code due to missing winbits range
validation and one possible NULL-ptr dereference in zcomp.
Both are low risk yet still worth fixing.


This patch (of 2):

zram_destroy_comps() resets all compressors and leaves them set to NULL,
including the primary one, which is invalid device state, as now
comp_algorithm_show()->strcmp() can be called on a NULL compressor.  Set
default primary compressor in zram_destroy_comps().

Link: https://lore.kernel.org/[email protected]
Fixes: 486fd58af7ac ("zram: don't free statically defined names")
Link: https://sashiko.dev/#/patchset/[email protected] [1]
Signed-off-by: Sergey Senozhatsky <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: Haoqin Huang <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 drivers/block/zram/zram_drv.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/block/zram/zram_drv.c~zram-set-default-primary-compressor-in-zram_destroy_comps
+++ a/drivers/block/zram/zram_drv.c
@@ -2828,6 +2828,7 @@ static void zram_destroy_comps(struct zr
 		zram->comp_algs[prio] = NULL;
 
 	zram_comp_params_reset(zram);
+	comp_algorithm_set(zram, ZRAM_PRIMARY_COMP, default_compressor);
 }
 
 static void zram_reset_device(struct zram *zram)
@@ -2845,8 +2846,6 @@ static void zram_reset_device(struct zra
 	zram_destroy_comps(zram);
 	memset(&zram->stats, 0, sizeof(zram->stats));
 	reset_bdev(zram);
-
-	comp_algorithm_set(zram, ZRAM_PRIMARY_COMP, default_compressor);
 }
 
 static ssize_t disksize_store(struct device *dev, struct device_attribute *attr,
_

Patches currently in -mm which might be from [email protected] are