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f2fs: introduce FAULT_INCONSISTENT_FOOTER

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To simulate inconsistent node footer error.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2025-03-05 17:11:48 +08:00 committed by Jaegeuk Kim
parent 2aac2538a9
commit 1788971e0b
5 changed files with 6 additions and 1 deletions
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1
Documentation/ABI/testing/sysfs-fs-f2fs
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@ -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

1
Documentation/filesystems/f2fs.rst
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@ -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

1
fs/f2fs/f2fs.h
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@ -62,6 +62,7 @@ enum {
FAULT_BLKADDR_VALIDITY,
FAULT_BLKADDR_CONSISTENCE,
FAULT_NO_SEGMENT,
FAULT_INCONSISTENT_FOOTER,
FAULT_MAX,
};

3
fs/f2fs/node.c
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@ -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),

1
fs/f2fs/super.c
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@ -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,