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/<device>/fault_*
Cc: Sheng Yong <[email protected]>
Signed-off-by: Chao Yu <[email protected]>
---
v2:
- fix to handle merge conflict correctly.
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 9e3756625a81..aaa379bb8a8f 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -669,3 +669,42 @@ Contact: "Ping Xiong" <[email protected]>
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/<disk>/fault_rate
+Date: May 2016
+Contact: "Sheng Yong" <[email protected]>
+Contact: "Chao Yu" <[email protected]>
+Description: Enable fault injection in all supported types with
+ specified injection rate.
+
+What: /sys/fs/f2fs/<disk>/fault_type
+Date: May 2016
+Contact: "Sheng Yong" <[email protected]>
+Contact: "Chao Yu" <[email protected]>
+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
+ =================== ===========
--
2.36.1
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