f2fs: inject ENOSPC failures (cb78942b) · Commits · 戴 / test

fs/f2fs/checkpoint.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -474,6 +474,13 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi)
		int err = 0;

		spin_lock(&im->ino_lock);

		#ifdef CONFIG_F2FS_FAULT_INJECTION
		if (time_to_inject(FAULT_ORPHAN)) {
		spin_unlock(&im->ino_lock);
		return -ENOSPC;
		}
		#endif
		if (unlikely(im->ino_num >= sbi->max_orphans))
		err = -ENOSPC;
		else

+4 −0

Original line number	Diff line number	Diff line
		@@ -537,6 +537,10 @@ int f2fs_add_regular_entry(struct inode dir, const struct qstr new_name,
		}

		start:
		#ifdef CONFIG_F2FS_FAULT_INJECTION
		if (time_to_inject(FAULT_DIR_DEPTH))
		return -ENOSPC;
		#endif
		if (unlikely(current_depth == MAX_DIR_HASH_DEPTH))
		return -ENOSPC;

+10 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,10 @@
		enum {
		FAULT_KMALLOC,
		FAULT_PAGE_ALLOC,
		FAULT_ALLOC_NID,
		FAULT_ORPHAN,
		FAULT_BLOCK,
		FAULT_DIR_DEPTH,
		FAULT_MAX,
		};

		@@ -1087,6 +1091,12 @@ static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
		block_t valid_block_count;

		spin_lock(&sbi->stat_lock);
		#ifdef CONFIG_F2FS_FAULT_INJECTION
		if (time_to_inject(FAULT_BLOCK)) {
		spin_unlock(&sbi->stat_lock);
		return false;
		}
		#endif
		valid_block_count =
		sbi->total_valid_block_count + (block_t)count;
		if (unlikely(valid_block_count > sbi->user_block_count)) {

+4 −0

Original line number	Diff line number	Diff line
		@@ -1838,6 +1838,10 @@ bool alloc_nid(struct f2fs_sb_info sbi, nid_t nid)
		struct f2fs_nm_info *nm_i = NM_I(sbi);
		struct free_nid *i = NULL;
		retry:
		#ifdef CONFIG_F2FS_FAULT_INJECTION
		if (time_to_inject(FAULT_ALLOC_NID))
		return false;
		#endif
		if (unlikely(sbi->total_valid_node_count + 1 > nm_i->available_nids))
		return false;

+4 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,10 @@ atomic_t f2fs_ops;
		char *fault_name[FAULT_MAX] = {
		[FAULT_KMALLOC] = "kmalloc",
		[FAULT_PAGE_ALLOC] = "page alloc",
		[FAULT_ALLOC_NID] = "alloc nid",
		[FAULT_ORPHAN] = "orphan",
		[FAULT_BLOCK] = "no more block",
		[FAULT_DIR_DEPTH] = "too big dir depth",
		};
		#endif