To simulate inconsistent node footer error.
Signed-off-by: Chao Yu <c...@kernel.org>
---
v2:
- no changes
Documentation/ABI/testing/sysfs-fs-f2fs | 1 +
Documentation/filesystems/f2fs.rst | 1 +
fs/f2fs/f2fs.h | 1 +
fs/f2fs/node.c | 3 ++-
fs/f2fs/super.c | 1 +
5 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs
b/Documentation/ABI/testing/sysfs-fs-f2fs
index 81deae2af84d..b9a000e5098a 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -734,6 +734,7 @@ Description: Support configuring fault injection
type, should be
FAULT_BLKADDR_VALIDITY 0x000040000
FAULT_BLKADDR_CONSISTENCE 0x000080000
FAULT_NO_SEGMENT 0x000100000
+ FAULT_INCONSISTENT_FOOTER 0x000200000
=========================== ===========
What: /sys/fs/f2fs/<disk>/discard_io_aware_gran
diff --git a/Documentation/filesystems/f2fs.rst
b/Documentation/filesystems/f2fs.rst
index fb7d2ee022bc..42f28dbf2410 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -206,6 +206,7 @@ fault_type=%d Support configuring fault
injection type, should be
FAULT_BLKADDR_VALIDITY 0x000040000
FAULT_BLKADDR_CONSISTENCE 0x000080000
FAULT_NO_SEGMENT 0x000100000
+ FAULT_INCONSISTENT_FOOTER 0x000200000
=========================== ===========
mode=%s Control block allocation mode which supports
"adaptive"
and "lfs". In "lfs" mode, there should be no random
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index b43aaa9e4ae5..6b4579b05dbf 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -62,6 +62,7 @@ enum {
FAULT_BLKADDR_VALIDITY,
FAULT_BLKADDR_CONSISTENCE,
FAULT_NO_SEGMENT,
+ FAULT_INCONSISTENT_FOOTER,
FAULT_MAX,
};
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 439690f40d2b..c40980447113 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1463,7 +1463,8 @@ static int sanity_check_node_footer(struct f2fs_sb_info
*sbi,
if (unlikely(nid != nid_of_node(page) ||
(ntype == NODE_TYPE_INODE && !IS_INODE(page)) ||
(ntype == NODE_TYPE_XATTR &&
- !f2fs_has_xattr_block(ofs_of_node(page))))) {
+ !f2fs_has_xattr_block(ofs_of_node(page))) ||
+ time_to_inject(sbi, FAULT_INCONSISTENT_FOOTER))) {
f2fs_warn(sbi, "inconsistent node block, node_type:%d, nid:%lu,
"
"node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]",
ntype, nid, nid_of_node(page), ino_of_node(page),
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 3c875dc07266..bbd45e300311 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -63,6 +63,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
[FAULT_BLKADDR_VALIDITY] = "invalid blkaddr",
[FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr",
[FAULT_NO_SEGMENT] = "no free segment",
+ [FAULT_INCONSISTENT_FOOTER] = "inconsistent footer",
};
int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate,
--
2.48.1
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