linux-kernel - [PATCH] Docs/ABI/zram: document zram recompress sysfs knobs

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Date:   Tue, 15 Nov 2022 11:03:14 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Minchan Kim <minchan@...nel.org>
Cc:     Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCH] Docs/ABI/zram: document zram recompress sysfs knobs

Document zram re-compression sysfs knobs.

Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 Documentation/ABI/testing/sysfs-block-zram | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
index 14b2bf2e5105..628a00fb20a9 100644
--- a/Documentation/ABI/testing/sysfs-block-zram
+++ b/Documentation/ABI/testing/sysfs-block-zram
@@ -137,3 +137,17 @@ Description:
 		The writeback_limit file is read-write and specifies the maximum
 		amount of writeback ZRAM can do. The limit could be changed
 		in run time.
+
+What:		/sys/block/zram<id>/recomp_algorithm
+Date:		November 2022
+Contact:	Sergey Senozhatsky <senozhatsky@...omium.org>
+Description:
+		The recomp_algorithm file is read-write and allows to set
+		or show secondary compression algorithms.
+
+What:		/sys/block/zram<id>/recompress
+Date:		November 2022
+Contact:	Sergey Senozhatsky <senozhatsky@...omium.org>
+Description:
+		The recompress file is write-only and triggers re-compression
+		with secondary compression algorithms.
-- 
2.38.1.431.g37b22c650d-goog