The patch titled
Subject: zram: free secondary algorithms names
has been added to the -mm mm-unstable branch. Its filename is
zram-free-secondary-algorithms-names.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-free-secondary-algorithms-names.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Subject: zram: free secondary algorithms names
Date: Wed, 11 Sep 2024 11:54:56 +0900
We need to kfree() secondary algorithms names when reset zram device that
had multi-streams, otherwise we leak memory.
Link: https://lkml.kernel.org/r/20240911025600.3681789-1-senozhatsky@xxxxxxxxxxxx
Fixes: 001d92735701 ("zram: add recompression algorithm sysfs knob")
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/block/zram/zram_drv.c~zram-free-secondary-algorithms-names
+++ a/drivers/block/zram/zram_drv.c
@@ -2112,6 +2112,13 @@ static void zram_destroy_comps(struct zr
zram->num_active_comps--;
}
+ for (prio = ZRAM_SECONDARY_COMP; prio < ZRAM_MAX_COMPS; prio++) {
+ if (!zram->comp_algs[prio])
+ continue;
+ kfree(zram->comp_algs[prio]);
+ zram->comp_algs[prio] = NULL;
+ }
+
zram_comp_params_reset(zram);
}
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
zsmalloc-use-unique-zsmalloc-caches-names.patch
zram-free-secondary-algorithms-names.patch
