From cec32b00faa940f4ed91a939d3beb71410334039 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Thu, 15 Dec 2022 23:03:30 +0800 Subject: [PATCH] f2fs: add missing doc for fault injection sysfs We supported configuring fault injection parameter via sysfs w/ below commits, however, we forgot to add doc entry, fix it. commit 087968974fcd ("f2fs: add fault injection to sysfs") /sys/fs/f2fs/fault_injection/fault_* commit 1ecc0c5c50ce ("f2fs: support configuring fault injection per superblock") /sys/fs/f2fs//fault_* Cc: Sheng Yong Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/ABI/testing/sysfs-fs-f2fs | 39 +++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 9e3756625a819..aaa379bb8a8fc 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -669,3 +669,42 @@ Contact: "Ping Xiong" Description: When DATA SEPARATION is on, it controls the age threshold to indicate the data blocks as warm. By default it was initialized as 2621440 blocks (equals to 10GB). + +What: /sys/fs/f2fs//fault_rate +Date: May 2016 +Contact: "Sheng Yong" +Contact: "Chao Yu" +Description: Enable fault injection in all supported types with + specified injection rate. + +What: /sys/fs/f2fs//fault_type +Date: May 2016 +Contact: "Sheng Yong" +Contact: "Chao Yu" +Description: Support configuring fault injection type, should be + enabled with fault_injection option, fault type value + is shown below, it supports single or combined type. + + =================== =========== + Type_Name Type_Value + =================== =========== + FAULT_KMALLOC 0x000000001 + FAULT_KVMALLOC 0x000000002 + FAULT_PAGE_ALLOC 0x000000004 + FAULT_PAGE_GET 0x000000008 + FAULT_ALLOC_BIO 0x000000010 (obsolete) + FAULT_ALLOC_NID 0x000000020 + FAULT_ORPHAN 0x000000040 + FAULT_BLOCK 0x000000080 + FAULT_DIR_DEPTH 0x000000100 + FAULT_EVICT_INODE 0x000000200 + FAULT_TRUNCATE 0x000000400 + FAULT_READ_IO 0x000000800 + FAULT_CHECKPOINT 0x000001000 + FAULT_DISCARD 0x000002000 + FAULT_WRITE_IO 0x000004000 + FAULT_SLAB_ALLOC 0x000008000 + FAULT_DQUOT_INIT 0x000010000 + FAULT_LOCK_OP 0x000020000 + FAULT_BLKADDR 0x000040000 + =================== =========== -- 2.30.2