Commit 1788971e authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: introduce FAULT_INCONSISTENT_FOOTER 



To simulate inconsistent node footer error.

Signed-off-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 2aac2538

Documentation/ABI/testing/sysfs-fs-f2fs

+1 −0
Original line number Diff line number Diff line
@@ -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

Documentation/filesystems/f2fs.rst

+1 −0
Original line number Diff line number Diff line
@@ -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

fs/f2fs/f2fs.h

+1 −0
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@@ -62,6 +62,7 @@ enum { 
	FAULT_BLKADDR_VALIDITY,

	FAULT_BLKADDR_CONSISTENCE,

	FAULT_NO_SEGMENT,

	FAULT_INCONSISTENT_FOOTER,

	FAULT_MAX,

};

fs/f2fs/node.c

+2 −1
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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),

fs/f2fs/super.c

+1 −0
Original line number Diff line number Diff line
@@ -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,