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Commit 53aa6bbf authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: inject to produce some orphan inodes 



Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 42d96401

fs/f2fs/f2fs.h

+3 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ enum { 
	FAULT_ORPHAN,

	FAULT_BLOCK,

	FAULT_DIR_DEPTH,

	FAULT_EVICT_INODE,

	FAULT_MAX,

};
@@ -74,6 +75,8 @@ static inline bool time_to_inject(int type) 
		return false;

	else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type))

		return false;

	else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type))

		return false;



	atomic_inc(&f2fs_fault.inject_ops);

	if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) {

fs/f2fs/inode.c

+5 −0
Original line number Diff line number Diff line
@@ -345,6 +345,11 @@ void f2fs_evict_inode(struct inode *inode) 
	if (inode->i_nlink || is_bad_inode(inode))

		goto no_delete;



#ifdef CONFIG_F2FS_FAULT_INJECTION

	if (time_to_inject(FAULT_EVICT_INODE))

		goto no_delete;

#endif



	sb_start_intwrite(inode->i_sb);

	set_inode_flag(inode, FI_NO_ALLOC);

	i_size_write(inode, 0);

fs/f2fs/super.c

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ char *fault_name[FAULT_MAX] = { 
	[FAULT_ORPHAN]		= "orphan",

	[FAULT_BLOCK]		= "no more block",

	[FAULT_DIR_DEPTH]	= "too big dir depth",

	[FAULT_EVICT_INODE]	= "evict_inode fail",

};



static void f2fs_build_fault_attr(unsigned int rate)