The patch titled
Subject: zram: remove zcomp_stream_put() from write_incompressible_page()
has been added to the -mm mm-unstable branch. Its filename is
zram-remove-zcomp_stream_put-from-write_incompressible_page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-remove-zcomp_stream_put-from-write_incompressible_page.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Subject: zram: remove zcomp_stream_put() from write_incompressible_page()
Date: Wed, 15 Jan 2025 16:19:16 +0900
We cannot and should not put per-CPU compression stream in
write_incompressible_page() because that function never gets any
per-CPU streams in the first place. It's zram_write_page() that
puts the stream before it calls write_incompressible_page().
Link: https://lkml.kernel.org/r/20250115072003.380567-1-senozhatsky@xxxxxxxxxxxx
Fixes: 485d11509d6d ("zram: factor out ZRAM_HUGE write")
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/block/zram/zram_drv.c~zram-remove-zcomp_stream_put-from-write_incompressible_page
+++ a/drivers/block/zram/zram_drv.c
@@ -1683,7 +1683,6 @@ static int write_incompressible_page(str
return PTR_ERR((void *)handle);
if (!zram_can_store_page(zram)) {
- zcomp_stream_put(zram->comps[ZRAM_PRIMARY_COMP]);
zs_free(zram->mem_pool, handle);
return -ENOMEM;
}
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
zram-remove-zcomp_stream_put-from-write_incompressible_page.patch
