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...
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@chromium.org 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@chromium.org Fixes: 001d92735701 ("zram: add recompression algorithm sysfs knob") Signed-off-by: Sergey Senozhatsky senozhatsky@chromium.org Cc: Minchan Kim minchan@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
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); }
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Patches currently in -mm which might be from senozhatsky@chromium.org are
zsmalloc-use-unique-zsmalloc-caches-names.patch zram-free-secondary-algorithms-names.patch