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f2fs: inject to produce some orphan inodes 

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-05-25 15:24:18 -07:00
parent 42d964016e
commit 53aa6bbfda
3 changed files with 9 additions and 0 deletions
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3
fs/f2fs/f2fs.h
View File

@ -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) {

5
fs/f2fs/inode.c
View File

@ -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);

1
fs/f2fs/super.c
View File

@ -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)