f2fs: merge f2fs_show_injection_info() into time_to_inject()

There is no need to additionally use f2fs_show_injection_info()
to output information. Concatenate time_to_inject() and
__time_to_inject() via a macro. In the new __time_to_inject()
function, pass in the caller function name and parent function.

In this way, we no longer need the f2fs_show_injection_info() function,
and let's remove it.
Suggested-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/checkpoint.c

@@ -171,10 +171,8 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type)
 {
-	if (time_to_inject(sbi, FAULT_BLKADDR)) {
-		f2fs_show_injection_info(sbi, FAULT_BLKADDR);
+	if (time_to_inject(sbi, FAULT_BLKADDR))
 		return false;
-	}
 
 	switch (type) {
 	case META_NAT:
@@ -622,7 +620,6 @@ int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi)
 
 	if (time_to_inject(sbi, FAULT_ORPHAN)) {
 		spin_unlock(&im->ino_lock);
-		f2fs_show_injection_info(sbi, FAULT_ORPHAN);
 		return -ENOSPC;
 	}
 

fs/f2fs/data.c

@@ -295,10 +295,8 @@ static void f2fs_read_end_io(struct bio *bio)
 	iostat_update_and_unbind_ctx(bio, 0);
 	ctx = bio->bi_private;
 
-	if (time_to_inject(sbi, FAULT_READ_IO)) {
-		f2fs_show_injection_info(sbi, FAULT_READ_IO);
+	if (time_to_inject(sbi, FAULT_READ_IO))
 		bio->bi_status = BLK_STS_IOERR;
-	}
 
 	if (bio->bi_status) {
 		f2fs_finish_read_bio(bio, intask);
@@ -335,10 +333,8 @@ static void f2fs_write_end_io(struct bio *bio)
 	iostat_update_and_unbind_ctx(bio, 1);
 	sbi = bio->bi_private;
 
-	if (time_to_inject(sbi, FAULT_WRITE_IO)) {
-		f2fs_show_injection_info(sbi, FAULT_WRITE_IO);
+	if (time_to_inject(sbi, FAULT_WRITE_IO))
 		bio->bi_status = BLK_STS_IOERR;
-	}
 
 	bio_for_each_segment_all(bvec, bio, iter_all) {
 		struct page *page = bvec->bv_page;

fs/f2fs/dir.c

@@ -732,10 +732,8 @@ int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
 	}
 
 start:
-	if (time_to_inject(F2FS_I_SB(dir), FAULT_DIR_DEPTH)) {
-		f2fs_show_injection_info(F2FS_I_SB(dir), FAULT_DIR_DEPTH);
+	if (time_to_inject(F2FS_I_SB(dir), FAULT_DIR_DEPTH))
 		return -ENOSPC;
-	}
 
 	if (unlikely(current_depth == MAX_DIR_HASH_DEPTH))
 		return -ENOSPC;

fs/f2fs/f2fs.h

@@ -1867,12 +1867,10 @@ struct f2fs_sb_info {
 };
 
 #ifdef CONFIG_F2FS_FAULT_INJECTION
-#define f2fs_show_injection_info(sbi, type)					\
-	printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n",	\
-		KERN_INFO, sbi->sb->s_id,				\
-		f2fs_fault_name[type],					\
-		__func__, __builtin_return_address(0))
-static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
+#define time_to_inject(sbi, type) __time_to_inject(sbi, type, __func__,	\
+									__builtin_return_address(0))
+static inline bool __time_to_inject(struct f2fs_sb_info *sbi, int type,
+				const char *func, const char *parent_func)
 {
 	struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
 
@@ -1885,12 +1883,14 @@ static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
 	atomic_inc(&ffi->inject_ops);
 	if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
 		atomic_set(&ffi->inject_ops, 0);
+		printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n",
+			KERN_INFO, sbi->sb->s_id, f2fs_fault_name[type],
+			func, parent_func);
 		return true;
 	}
 	return false;
 }
 #else
-#define f2fs_show_injection_info(sbi, type) do { } while (0)
 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
 {
 	return false;
@@ -2223,10 +2223,8 @@ static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 
 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
 {
-	if (time_to_inject(sbi, FAULT_LOCK_OP)) {
-		f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
+	if (time_to_inject(sbi, FAULT_LOCK_OP))
 		return 0;
-	}
 	return f2fs_down_read_trylock(&sbi->cp_rwsem);
 }
 
@@ -2314,7 +2312,6 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
 		return ret;
 
 	if (time_to_inject(sbi, FAULT_BLOCK)) {
-		f2fs_show_injection_info(sbi, FAULT_BLOCK);
 		release = *count;
 		goto release_quota;
 	}
@@ -2594,10 +2591,8 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
 			return err;
 	}
 
-	if (time_to_inject(sbi, FAULT_BLOCK)) {
-		f2fs_show_injection_info(sbi, FAULT_BLOCK);
+	if (time_to_inject(sbi, FAULT_BLOCK))
 		goto enospc;
-	}
 
 	spin_lock(&sbi->stat_lock);
 
@@ -2721,11 +2716,8 @@ static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
 		if (page)
 			return page;
 
-		if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
-			f2fs_show_injection_info(F2FS_M_SB(mapping),
-							FAULT_PAGE_ALLOC);
+		if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
 			return NULL;
-		}
 	}
 
 	if (!for_write)
@@ -2742,10 +2734,8 @@ static inline struct page *f2fs_pagecache_get_page(
 				struct address_space *mapping, pgoff_t index,
 				int fgp_flags, gfp_t gfp_mask)
 {
-	if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
-		f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
+	if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET))
 		return NULL;
-	}
 
 	return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
 }
@@ -2795,10 +2785,8 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
 	if (nofail)
 		return f2fs_kmem_cache_alloc_nofail(cachep, flags);
 
-	if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
-		f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
+	if (time_to_inject(sbi, FAULT_SLAB_ALLOC))
 		return NULL;
-	}
 
 	return kmem_cache_alloc(cachep, flags);
 }
@@ -3372,10 +3360,8 @@ static inline bool is_dot_dotdot(const u8 *name, size_t len)
 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
 					size_t size, gfp_t flags)
 {
-	if (time_to_inject(sbi, FAULT_KMALLOC)) {
-		f2fs_show_injection_info(sbi, FAULT_KMALLOC);
+	if (time_to_inject(sbi, FAULT_KMALLOC))
 		return NULL;
-	}
 
 	return kmalloc(size, flags);
 }
@@ -3389,10 +3375,8 @@ static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
 					size_t size, gfp_t flags)
 {
-	if (time_to_inject(sbi, FAULT_KVMALLOC)) {
-		f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
+	if (time_to_inject(sbi, FAULT_KVMALLOC))
 		return NULL;
-	}
 
 	return kvmalloc(size, flags);
 }

fs/f2fs/file.c

@@ -782,10 +782,8 @@ int f2fs_truncate(struct inode *inode)
 
 	trace_f2fs_truncate(inode);
 
-	if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
-		f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
+	if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE))
 		return -EIO;
-	}
 
 	err = f2fs_dquot_initialize(inode);
 	if (err)

fs/f2fs/gc.c

@@ -72,11 +72,9 @@ static int gc_thread_func(void *data)
 			continue;
 		}
 
-		if (time_to_inject(sbi, FAULT_CHECKPOINT)) {
-			f2fs_show_injection_info(sbi, FAULT_CHECKPOINT);
+		if (time_to_inject(sbi, FAULT_CHECKPOINT))
 			f2fs_stop_checkpoint(sbi, false,
 					STOP_CP_REASON_FAULT_INJECT);
-		}
 
 		if (!sb_start_write_trylock(sbi->sb)) {
 			stat_other_skip_bggc_count(sbi);

fs/f2fs/inode.c

@@ -809,10 +809,8 @@ void f2fs_evict_inode(struct inode *inode)
 	if (F2FS_HAS_BLOCKS(inode))
 		err = f2fs_truncate(inode);
 
-	if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
-		f2fs_show_injection_info(sbi, FAULT_EVICT_INODE);
+	if (time_to_inject(sbi, FAULT_EVICT_INODE))
 		err = -EIO;
-	}
 
 	if (!err) {
 		f2fs_lock_op(sbi);

fs/f2fs/node.c

@@ -2541,10 +2541,8 @@ bool f2fs_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:
-	if (time_to_inject(sbi, FAULT_ALLOC_NID)) {
-		f2fs_show_injection_info(sbi, FAULT_ALLOC_NID);
+	if (time_to_inject(sbi, FAULT_ALLOC_NID))
 		return false;
-	}
 
 	spin_lock(&nm_i->nid_list_lock);
 

fs/f2fs/segment.c

@@ -384,10 +384,8 @@ int f2fs_commit_atomic_write(struct inode *inode)
  */
 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 {
-	if (time_to_inject(sbi, FAULT_CHECKPOINT)) {
-		f2fs_show_injection_info(sbi, FAULT_CHECKPOINT);
+	if (time_to_inject(sbi, FAULT_CHECKPOINT))
 		f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_FAULT_INJECT);
-	}
 
 	/* balance_fs_bg is able to be pending */
 	if (need && excess_cached_nats(sbi))
@@ -1140,7 +1138,6 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
 		dc->len += len;
 
 		if (time_to_inject(sbi, FAULT_DISCARD)) {
-			f2fs_show_injection_info(sbi, FAULT_DISCARD);
 			err = -EIO;
 		} else {
 			err = __blkdev_issue_discard(bdev,

fs/f2fs/super.c

@@ -1371,10 +1371,8 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
 {
 	struct f2fs_inode_info *fi;
 
-	if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC)) {
-		f2fs_show_injection_info(F2FS_SB(sb), FAULT_SLAB_ALLOC);
+	if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC))
 		return NULL;
-	}
 
 	fi = alloc_inode_sb(sb, f2fs_inode_cachep, GFP_F2FS_ZERO);
 	if (!fi)
@@ -2594,10 +2592,8 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
 
 int f2fs_dquot_initialize(struct inode *inode)
 {
-	if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT)) {
-		f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_DQUOT_INIT);
+	if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT))
 		return -ESRCH;
-	}
 
 	return dquot_initialize(inode);
 }