[PATCH v6] f2fs: support FAULT_LOCK type fault injection

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Similar to FAULT_LOCK_OP, this patch supports to inject fault into
variant of _trylock(), including:
  - inode_trylock
  - down_read_trylock
  - down_write_trylock
  - mutex_trylock
  - sb_start_write_trylock
  - trylock_page

Usage:
  a) echo 524288 > /sys/fs/f2fs/<dev>/inject_type or
  b) mount -o fault_type=524288 <dev> <mountpoint>

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/oe-kbuild-all/202304031801.hGbHuuBP-lkp@xxxxxxxxx/
Suggested-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Yangtao Li <frank.li@xxxxxxxx>
---
v6:
-rebase
 Documentation/ABI/testing/sysfs-fs-f2fs |  1 +
 Documentation/filesystems/f2fs.rst      |  1 +
 fs/f2fs/checkpoint.c                    |  6 +-
 fs/f2fs/compress.c                      |  2 +-
 fs/f2fs/data.c                          |  8 +--
 fs/f2fs/extent_cache.c                  |  6 +-
 fs/f2fs/f2fs.h                          | 73 ++++++++++++++++++++++---
 fs/f2fs/file.c                          | 31 ++++++-----
 fs/f2fs/gc.c                            | 12 ++--
 fs/f2fs/namei.c                         |  4 +-
 fs/f2fs/node.c                          | 28 +++++-----
 fs/f2fs/segment.c                       | 27 ++++-----
 fs/f2fs/shrinker.c                      | 10 ++--
 fs/f2fs/super.c                         |  7 ++-
 fs/f2fs/sysfs.c                         |  2 +-
 fs/f2fs/xattr.c                         | 15 ++---
 16 files changed, 146 insertions(+), 87 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 8140fc98f5ae..5ada174cf30c 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -708,6 +708,7 @@ Description:	Support configuring fault injection type, should be
 		FAULT_DQUOT_INIT         0x000010000
 		FAULT_LOCK_OP            0x000020000
 		FAULT_BLKADDR            0x000040000
+		FAULT_LOCK               0x000080000
 		===================      ===========
 
 What:		/sys/fs/f2fs/<disk>/discard_io_aware_gran
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index c57745375edb..fafae551df9e 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -206,6 +206,7 @@ fault_type=%d		 Support configuring fault injection type, should be
 			 FAULT_DQUOT_INIT	  0x000010000
 			 FAULT_LOCK_OP		  0x000020000
 			 FAULT_BLKADDR		  0x000040000
+			 FAULT_LOCK		  0x000080000
 			 ===================	  ===========
 mode=%s			 Control block allocation mode which supports "adaptive"
 			 and "lfs". In "lfs" mode, there should be no random
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 64b3860f50ee..2887d62b4a17 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -389,7 +389,7 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
 		goto skip_write;
 
 	/* if locked failed, cp will flush dirty pages instead */
-	if (!f2fs_down_write_trylock(&sbi->cp_global_sem))
+	if (!f2fs_down_write_trylock(sbi, &sbi->cp_global_sem))
 		goto skip_write;
 
 	trace_f2fs_writepages(mapping->host, wbc, META);
@@ -1182,7 +1182,7 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	if (!is_journalled_quota(sbi))
 		return false;
 
-	if (!f2fs_down_write_trylock(&sbi->quota_sem))
+	if (!f2fs_down_write_trylock(sbi, &sbi->quota_sem))
 		return true;
 	if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
 		ret = false;
@@ -1228,7 +1228,7 @@ static int block_operations(struct f2fs_sb_info *sbi)
 		f2fs_unlock_all(sbi);
 
 		/* only failed during mount/umount/freeze/quotactl */
-		locked = down_read_trylock(&sbi->sb->s_umount);
+		locked = f2fs_raw_down_read_trylock(sbi, &sbi->sb->s_umount);
 		f2fs_quota_sync(sbi->sb, -1);
 		if (locked)
 			up_read(&sbi->sb->s_umount);
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 11653fa79289..b94c3d5087f3 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1228,7 +1228,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 		 * checkpoint. This can only happen to quota writes which can cause
 		 * the below discard race condition.
 		 */
-		f2fs_down_read(&sbi->node_write);
+		f2fs_down_read(sbi, &sbi->node_write);
 	} else if (!f2fs_trylock_op(sbi)) {
 		goto out_free;
 	}
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8df225014304..872ed5554c26 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -680,7 +680,7 @@ static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
 			enum page_type btype = PAGE_TYPE_OF_BIO(type);
 			struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
 
-			f2fs_down_read(&io->io_rwsem);
+			f2fs_down_read(sbi, &io->io_rwsem);
 			ret = __has_merged_page(io->bio, inode, page, ino);
 			f2fs_up_read(&io->io_rwsem);
 		}
@@ -884,7 +884,7 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 		if (list_empty(head))
 			continue;
 
-		f2fs_down_read(&io->bio_list_lock);
+		f2fs_down_read(sbi, &io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (target)
 				found = (target == be->bio);
@@ -1447,7 +1447,7 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
 static void f2fs_map_lock(struct f2fs_sb_info *sbi, int flag)
 {
 	if (flag == F2FS_GET_BLOCK_PRE_AIO)
-		f2fs_down_read(&sbi->node_change);
+		f2fs_down_read(sbi, &sbi->node_change);
 	else
 		f2fs_lock_op(sbi);
 }
@@ -2839,7 +2839,7 @@ int f2fs_write_single_data_page(struct page *page, int *submitted,
 		 * the below discard race condition.
 		 */
 		if (IS_NOQUOTA(inode))
-			f2fs_down_read(&sbi->node_write);
+			f2fs_down_read(sbi, &sbi->node_write);
 
 		fio.need_lock = LOCK_DONE;
 		err = f2fs_do_write_data_page(&fio);
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index bea6ab9d846a..bab36a42bacf 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -917,7 +917,7 @@ static unsigned int __shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink
 	if (!atomic_read(&eti->total_zombie_tree))
 		goto free_node;
 
-	if (!mutex_trylock(&eti->extent_tree_lock))
+	if (!f2fs_mutex_trylock(sbi, &eti->extent_tree_lock))
 		goto out;
 
 	/* 1. remove unreferenced extent tree */
@@ -943,7 +943,7 @@ static unsigned int __shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink
 
 free_node:
 	/* 2. remove LRU extent entries */
-	if (!mutex_trylock(&eti->extent_tree_lock))
+	if (!f2fs_mutex_trylock(sbi, &eti->extent_tree_lock))
 		goto out;
 
 	remained = nr_shrink - (node_cnt + tree_cnt);
@@ -955,7 +955,7 @@ static unsigned int __shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink
 		en = list_first_entry(&eti->extent_list,
 					struct extent_node, list);
 		et = en->et;
-		if (!write_trylock(&et->lock)) {
+		if (!f2fs_write_trylock(sbi, &et->lock)) {
 			/* refresh this extent node's position in extent list */
 			list_move_tail(&en->list, &eti->extent_list);
 			continue;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d8cb1dc09f9f..2bbac3a15c5a 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -61,6 +61,7 @@ enum {
 	FAULT_DQUOT_INIT,
 	FAULT_LOCK_OP,
 	FAULT_BLKADDR,
+	FAULT_LOCK,
 	FAULT_MAX,
 };
 
@@ -2079,27 +2080,76 @@ static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
 	return rwsem_is_contended(&sem->internal_rwsem);
 }
 
-static inline void f2fs_down_read(struct f2fs_rwsem *sem)
+static inline int f2fs_down_read_trylock(struct f2fs_sb_info *sbi,
+					struct f2fs_rwsem *sem)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return down_read_trylock(&sem->internal_rwsem);
+}
+
+static inline void f2fs_down_read(struct f2fs_sb_info *sbi, struct f2fs_rwsem *sem)
 {
 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
-	wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
+	wait_event(sem->read_waiters, f2fs_down_read_trylock(sbi, sem));
 #else
 	down_read(&sem->internal_rwsem);
 #endif
 }
 
-static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
+static inline int f2fs_raw_down_read_trylock(struct f2fs_sb_info *sbi,
+					struct rw_semaphore *sem)
 {
-	return down_read_trylock(&sem->internal_rwsem);
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return down_read_trylock(sem);
+}
+
+static inline int f2fs_inode_trylock(struct f2fs_sb_info *sbi,
+					struct inode *inode)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return down_write_trylock(&inode->i_rwsem);
+}
+
+static inline int f2fs_mutex_trylock(struct f2fs_sb_info *sbi,
+					struct mutex *lock)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return mutex_trylock(lock);
+}
+
+static inline int f2fs_trylock_page(struct f2fs_sb_info *sbi, struct page *page)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return trylock_page(page);
+}
+
+static inline int f2fs_write_trylock(struct f2fs_sb_info *sbi, rwlock_t *lock)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return write_trylock(lock);
+}
+
+static inline bool f2fs_sb_start_write_trylock(struct f2fs_sb_info *sbi)
+{
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
+	return sb_start_write_trylock(sbi->sb);
 }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
-static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
+static inline void f2fs_down_read_nested(struct f2fs_sb_info *sbi,
+					struct f2fs_rwsem *sem, int subclass)
 {
 	down_read_nested(&sem->internal_rwsem, subclass);
 }
 #else
-#define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
+#define f2fs_down_read_nested(sbi, sem, subclass) f2fs_down_read(sbi, sem)
 #endif
 
 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
@@ -2112,8 +2162,11 @@ static inline void f2fs_down_write(struct f2fs_rwsem *sem)
 	down_write(&sem->internal_rwsem);
 }
 
-static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
+static inline int f2fs_down_write_trylock(struct f2fs_sb_info *sbi,
+					struct f2fs_rwsem *sem)
 {
+	if (time_to_inject(sbi, FAULT_LOCK))
+		return 0;
 	return down_write_trylock(&sem->internal_rwsem);
 }
 
@@ -2127,14 +2180,16 @@ static inline void f2fs_up_write(struct f2fs_rwsem *sem)
 
 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 {
-	f2fs_down_read(&sbi->cp_rwsem);
+	f2fs_down_read(sbi, &sbi->cp_rwsem);
 }
 
 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
 {
+	struct f2fs_rwsem *sem = &sbi->cp_rwsem;
+
 	if (time_to_inject(sbi, FAULT_LOCK_OP))
 		return 0;
-	return f2fs_down_read_trylock(&sbi->cp_rwsem);
+	return down_read_trylock(&sem->internal_rwsem);
 }
 
 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 720be239955d..ad4a3d79ddf5 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -316,7 +316,7 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
 	 * Both of fdatasync() and fsync() are able to be recovered from
 	 * sudden-power-off.
 	 */
-	f2fs_down_read(&F2FS_I(inode)->i_sem);
+	f2fs_down_read(sbi, &F2FS_I(inode)->i_sem);
 	cp_reason = need_do_checkpoint(inode);
 	f2fs_up_read(&F2FS_I(inode)->i_sem);
 
@@ -2466,7 +2466,7 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
 		return ret;
 
 	if (!sync) {
-		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(sbi, &sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
@@ -2510,7 +2510,7 @@ static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
 
 do_more:
 	if (!range->sync) {
-		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(sbi, &sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
@@ -2805,7 +2805,7 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 	inode_lock(src);
 	if (src != dst) {
 		ret = -EBUSY;
-		if (!inode_trylock(dst))
+		if (!f2fs_inode_trylock(sbi, dst))
 			goto out;
 	}
 
@@ -2855,7 +2855,7 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 	f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
 	if (src != dst) {
 		ret = -EBUSY;
-		if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
+		if (!f2fs_down_write_trylock(sbi, &F2FS_I(dst)->i_gc_rwsem[WRITE]))
 			goto out_src;
 	}
 
@@ -2975,7 +2975,7 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
 	end_segno = min(start_segno + range.segments, dev_end_segno);
 
 	while (start_segno < end_segno) {
-		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(sbi, &sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
@@ -3325,7 +3325,7 @@ static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
 	if (!vbuf)
 		return -ENOMEM;
 
-	f2fs_down_read(&sbi->sb_lock);
+	f2fs_down_read(sbi, &sbi->sb_lock);
 	count = utf16s_to_utf8s(sbi->raw_super->volume_name,
 			ARRAY_SIZE(sbi->raw_super->volume_name),
 			UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
@@ -4335,12 +4335,12 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	trace_f2fs_direct_IO_enter(inode, iocb, count, READ);
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
+		if (!f2fs_down_read_trylock(sbi, &fi->i_gc_rwsem[READ])) {
 			ret = -EAGAIN;
 			goto out;
 		}
 	} else {
-		f2fs_down_read(&fi->i_gc_rwsem[READ]);
+		f2fs_down_read(sbi, &fi->i_gc_rwsem[READ]);
 	}
 
 	/*
@@ -4582,11 +4582,11 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 			goto out;
 		}
 
-		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
+		if (!f2fs_down_read_trylock(sbi, &fi->i_gc_rwsem[WRITE])) {
 			ret = -EAGAIN;
 			goto out;
 		}
-		if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
+		if (do_opu && !f2fs_down_read_trylock(sbi, &fi->i_gc_rwsem[READ])) {
 			f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
 			ret = -EAGAIN;
 			goto out;
@@ -4596,9 +4596,9 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 		if (ret)
 			goto out;
 
-		f2fs_down_read(&fi->i_gc_rwsem[WRITE]);
+		f2fs_down_read(sbi, &fi->i_gc_rwsem[WRITE]);
 		if (do_opu)
-			f2fs_down_read(&fi->i_gc_rwsem[READ]);
+			f2fs_down_read(sbi, &fi->i_gc_rwsem[READ]);
 	}
 
 	/*
@@ -4675,13 +4675,14 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	struct inode *inode = file_inode(iocb->ki_filp);
 	const loff_t orig_pos = iocb->ki_pos;
 	const size_t orig_count = iov_iter_count(from);
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	loff_t target_size;
 	bool dio;
 	bool may_need_sync = true;
 	int preallocated;
 	ssize_t ret;
 
-	if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
+	if (unlikely(f2fs_cp_error(sbi))) {
 		ret = -EIO;
 		goto out;
 	}
@@ -4692,7 +4693,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!inode_trylock(inode)) {
+		if (!f2fs_inode_trylock(sbi, inode)) {
 			ret = -EAGAIN;
 			goto out;
 		}
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 61c5f9d26018..3a7947f7895a 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -76,7 +76,7 @@ static int gc_thread_func(void *data)
 			f2fs_stop_checkpoint(sbi, false,
 					STOP_CP_REASON_FAULT_INJECT);
 
-		if (!sb_start_write_trylock(sbi->sb)) {
+		if (!f2fs_sb_start_write_trylock(sbi)) {
 			stat_other_skip_bggc_count(sbi);
 			continue;
 		}
@@ -104,7 +104,7 @@ static int gc_thread_func(void *data)
 		if (foreground) {
 			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
-		} else if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
+		} else if (!f2fs_down_write_trylock(sbi, &sbi->gc_lock)) {
 			stat_other_skip_bggc_count(sbi);
 			goto next;
 		}
@@ -1573,7 +1573,7 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 				return submitted;
 			}
 
-			if (!f2fs_down_write_trylock(
+			if (!f2fs_down_write_trylock(sbi,
 				&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
 				iput(inode);
 				sbi->skipped_gc_rwsem++;
@@ -1616,11 +1616,11 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 			int err;
 
 			if (S_ISREG(inode->i_mode)) {
-				if (!f2fs_down_write_trylock(&fi->i_gc_rwsem[WRITE])) {
+				if (!f2fs_down_write_trylock(sbi, &fi->i_gc_rwsem[WRITE])) {
 					sbi->skipped_gc_rwsem++;
 					continue;
 				}
-				if (!f2fs_down_write_trylock(
+				if (!f2fs_down_write_trylock(sbi,
 						&fi->i_gc_rwsem[READ])) {
 					sbi->skipped_gc_rwsem++;
 					f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
@@ -2142,7 +2142,7 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 	secs = div_u64(shrunk_blocks, BLKS_PER_SEC(sbi));
 
 	/* stop other GC */
-	if (!f2fs_down_write_trylock(&sbi->gc_lock))
+	if (!f2fs_down_write_trylock(sbi, &sbi->gc_lock))
 		return -EAGAIN;
 
 	/* stop CP to protect MAIN_SEC in free_segment_range */
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 77a71276ecb1..4d4426cda93a 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -144,7 +144,7 @@ static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
 		return;
 
 	/* Don't compress hot files. */
-	f2fs_down_read(&sbi->sb_lock);
+	f2fs_down_read(sbi, &sbi->sb_lock);
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
 	for (i = cold_count; i < cold_count + hot_count; i++)
@@ -185,7 +185,7 @@ static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
 	__u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 	int i, cold_count, hot_count;
 
-	f2fs_down_read(&sbi->sb_lock);
+	f2fs_down_read(sbi, &sbi->sb_lock);
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
 	for (i = 0; i < cold_count + hot_count; i++)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index bd1dad523796..bd108b0feb45 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -383,7 +383,7 @@ int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool need = false;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		if (!get_nat_flag(e, IS_CHECKPOINTED) &&
@@ -400,7 +400,7 @@ bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool is_cp = true;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e && !get_nat_flag(e, IS_CHECKPOINTED))
 		is_cp = false;
@@ -414,7 +414,7 @@ bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino)
 	struct nat_entry *e;
 	bool need_update = true;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, ino);
 	if (e && get_nat_flag(e, HAS_LAST_FSYNC) &&
 			(get_nat_flag(e, IS_CHECKPOINTED) ||
@@ -517,7 +517,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	int nr = nr_shrink;
 
-	if (!f2fs_down_write_trylock(&nm_i->nat_tree_lock))
+	if (!f2fs_down_write_trylock(sbi, &nm_i->nat_tree_lock))
 		return 0;
 
 	spin_lock(&nm_i->nat_list_lock);
@@ -561,7 +561,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
 	ni->nid = nid;
 retry:
 	/* Check nat cache */
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		ni->ino = nat_get_ino(e);
@@ -580,7 +580,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
 	if (!f2fs_rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
 		down_read(&curseg->journal_rwsem);
 	} else if (f2fs_rwsem_is_contended(&nm_i->nat_tree_lock) ||
-				!down_read_trylock(&curseg->journal_rwsem)) {
+				!f2fs_raw_down_read_trylock(sbi, &curseg->journal_rwsem)) {
 		f2fs_up_read(&nm_i->nat_tree_lock);
 		goto retry;
 	}
@@ -1618,10 +1618,10 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 		goto redirty_out;
 
 	if (wbc->for_reclaim) {
-		if (!f2fs_down_read_trylock(&sbi->node_write))
+		if (!f2fs_down_read_trylock(sbi, &sbi->node_write))
 			goto redirty_out;
 	} else {
-		f2fs_down_read(&sbi->node_write);
+		f2fs_down_read(sbi, &sbi->node_write);
 	}
 
 	/* This page is already truncated */
@@ -1982,7 +1982,7 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
 lock_node:
 			if (wbc->sync_mode == WB_SYNC_ALL)
 				lock_page(page);
-			else if (!trylock_page(page))
+			else if (!f2fs_trylock_page(sbi, page))
 				continue;
 
 			if (unlikely(page->mapping != NODE_MAPPING(sbi))) {
@@ -2233,7 +2233,7 @@ bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi)
 	unsigned int i;
 	bool ret = true;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap)) {
 			ret = false;
@@ -2423,7 +2423,7 @@ static void scan_free_nid_bits(struct f2fs_sb_info *sbi)
 	unsigned int i, idx;
 	nid_t nid;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap))
@@ -2481,7 +2481,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES,
 							META_NAT, true);
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 
 	while (1) {
 		if (!test_bit_le(NAT_BLOCK_OFFSET(nid),
@@ -2636,7 +2636,7 @@ int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink)
 	if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS)
 		return 0;
 
-	if (!mutex_trylock(&nm_i->build_lock))
+	if (!f2fs_mutex_trylock(sbi, &nm_i->build_lock))
 		return 0;
 
 	while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) {
@@ -2959,7 +2959,7 @@ void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	unsigned int nat_ofs;
 
-	f2fs_down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(sbi, &nm_i->nat_tree_lock);
 
 	for (nat_ofs = 0; nat_ofs < nm_i->nat_blocks; nat_ofs++) {
 		unsigned int valid = 0, nid_ofs = 0;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 641bd8cc54da..77bee39498cd 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2807,7 +2807,7 @@ static void __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
 	if (!sbi->am.atgc_enabled)
 		return;
 
-	f2fs_down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(sbi, &SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
@@ -2956,7 +2956,7 @@ void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
 	struct curseg_info *curseg = CURSEG_I(sbi, type);
 	unsigned int segno;
 
-	f2fs_down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(sbi, &SM_I(sbi)->curseg_lock);
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
 
@@ -3003,7 +3003,7 @@ static void __allocate_new_segment(struct f2fs_sb_info *sbi, int type,
 
 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force)
 {
-	f2fs_down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(sbi, &SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	__allocate_new_segment(sbi, type, true, force);
 	up_write(&SIT_I(sbi)->sentry_lock);
@@ -3014,7 +3014,7 @@ void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
 {
 	int i;
 
-	f2fs_down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(sbi, &SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++)
 		__allocate_new_segment(sbi, i, false, false);
@@ -3322,7 +3322,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	struct seg_entry *se = NULL;
 	bool segment_full = false;
 
-	f2fs_down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(sbi, &SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&sit_i->sentry_lock);
@@ -3451,17 +3451,18 @@ void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
 static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
 {
 	int type = __get_segment_type(fio);
-	bool keep_order = (f2fs_lfs_mode(fio->sbi) && type == CURSEG_COLD_DATA);
+	struct f2fs_sb_info *sbi = fio->sbi;
+	bool keep_order = (f2fs_lfs_mode(sbi) && type == CURSEG_COLD_DATA);
 
 	if (keep_order)
-		f2fs_down_read(&fio->sbi->io_order_lock);
+		f2fs_down_read(sbi, &sbi->io_order_lock);
 reallocate:
-	f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr,
+	f2fs_allocate_data_block(sbi, fio->page, fio->old_blkaddr,
 			&fio->new_blkaddr, sum, type, fio);
-	if (GET_SEGNO(fio->sbi, fio->old_blkaddr) != NULL_SEGNO) {
-		invalidate_mapping_pages(META_MAPPING(fio->sbi),
+	if (GET_SEGNO(sbi, fio->old_blkaddr) != NULL_SEGNO) {
+		invalidate_mapping_pages(META_MAPPING(sbi),
 					fio->old_blkaddr, fio->old_blkaddr);
-		f2fs_invalidate_compress_page(fio->sbi, fio->old_blkaddr);
+		f2fs_invalidate_compress_page(sbi, fio->old_blkaddr);
 	}
 
 	/* writeout dirty page into bdev */
@@ -3471,10 +3472,10 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
 		goto reallocate;
 	}
 
-	f2fs_update_device_state(fio->sbi, fio->ino, fio->new_blkaddr, 1);
+	f2fs_update_device_state(sbi, fio->ino, fio->new_blkaddr, 1);
 
 	if (keep_order)
-		f2fs_up_read(&fio->sbi->io_order_lock);
+		f2fs_up_read(&sbi->io_order_lock);
 }
 
 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 83d6fb97dcae..675758b509ee 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -40,17 +40,16 @@ static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi,
 unsigned long f2fs_shrink_count(struct shrinker *shrink,
 				struct shrink_control *sc)
 {
-	struct f2fs_sb_info *sbi;
 	struct list_head *p;
 	unsigned long count = 0;
 
 	spin_lock(&f2fs_list_lock);
 	p = f2fs_list.next;
 	while (p != &f2fs_list) {
-		sbi = list_entry(p, struct f2fs_sb_info, s_list);
+		struct f2fs_sb_info *sbi = list_entry(p, struct f2fs_sb_info, s_list);
 
 		/* stop f2fs_put_super */
-		if (!mutex_trylock(&sbi->umount_mutex)) {
+		if (!f2fs_mutex_trylock(sbi, &sbi->umount_mutex)) {
 			p = p->next;
 			continue;
 		}
@@ -80,7 +79,6 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink,
 				struct shrink_control *sc)
 {
 	unsigned long nr = sc->nr_to_scan;
-	struct f2fs_sb_info *sbi;
 	struct list_head *p;
 	unsigned int run_no;
 	unsigned long freed = 0;
@@ -91,13 +89,13 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink,
 	} while (run_no == 0);
 	p = f2fs_list.next;
 	while (p != &f2fs_list) {
-		sbi = list_entry(p, struct f2fs_sb_info, s_list);
+		struct f2fs_sb_info *sbi = list_entry(p, struct f2fs_sb_info, s_list);
 
 		if (sbi->shrinker_run_no == run_no)
 			break;
 
 		/* stop f2fs_put_super */
-		if (!mutex_trylock(&sbi->umount_mutex)) {
+		if (!f2fs_mutex_trylock(sbi, &sbi->umount_mutex)) {
 			p = p->next;
 			continue;
 		}
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 9f15b03037db..4aa4b12e455d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -62,6 +62,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
 	[FAULT_DQUOT_INIT]	= "dquot initialize",
 	[FAULT_LOCK_OP]		= "lock_op",
 	[FAULT_BLKADDR]		= "invalid blkaddr",
+	[FAULT_LOCK]		= "lock",
 };
 
 void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
@@ -2831,7 +2832,7 @@ int f2fs_quota_sync(struct super_block *sb, int type)
 		 *			      f2fs_down_read(quota_sem)
 		 */
 		f2fs_lock_op(sbi);
-		f2fs_down_read(&sbi->quota_sem);
+		f2fs_down_read(sbi, &sbi->quota_sem);
 
 		ret = f2fs_quota_sync_file(sbi, cnt);
 
@@ -2961,7 +2962,7 @@ static int f2fs_dquot_commit(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
+	f2fs_down_read_nested(sbi, &sbi->quota_sem, SINGLE_DEPTH_NESTING);
 	ret = dquot_commit(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
@@ -2974,7 +2975,7 @@ static int f2fs_dquot_acquire(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	f2fs_down_read(&sbi->quota_sem);
+	f2fs_down_read(sbi, &sbi->quota_sem);
 	ret = dquot_acquire(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 8ea05340bad9..dccc0a122c25 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -738,7 +738,7 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
 					a->struct_type == GC_THREAD);
 
 	if (gc_entry) {
-		if (!down_read_trylock(&sbi->sb->s_umount))
+		if (!f2fs_raw_down_read_trylock(sbi, &sbi->sb->s_umount))
 			return -EAGAIN;
 	}
 	ret = __sbi_store(a, sbi, buf, count);
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index d92edbbdc30e..bb00c7e889da 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -513,6 +513,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
 int f2fs_getxattr(struct inode *inode, int index, const char *name,
 		void *buffer, size_t buffer_size, struct page *ipage)
 {
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	struct f2fs_xattr_entry *entry = NULL;
 	int error;
 	unsigned int size, len;
@@ -527,7 +528,7 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
 	if (len > F2FS_NAME_LEN)
 		return -ERANGE;
 
-	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(sbi, &F2FS_I(inode)->i_xattr_sem);
 	error = lookup_all_xattrs(inode, ipage, index, len, name,
 				&entry, &base_addr, &base_size, &is_inline);
 	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
@@ -552,19 +553,20 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
 	}
 	error = size;
 out:
-	xattr_free(F2FS_I_SB(inode), base_addr, is_inline);
+	xattr_free(sbi, base_addr, is_inline);
 	return error;
 }
 
 ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 {
 	struct inode *inode = d_inode(dentry);
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	struct f2fs_xattr_entry *entry;
 	void *base_addr, *last_base_addr;
 	int error;
 	size_t rest = buffer_size;
 
-	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(sbi, &F2FS_I(inode)->i_xattr_sem);
 	error = read_all_xattrs(inode, NULL, &base_addr);
 	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
 	if (error)
@@ -581,12 +583,11 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 
 		if ((void *)(entry) + sizeof(__u32) > last_base_addr ||
 			(void *)XATTR_NEXT_ENTRY(entry) > last_base_addr) {
-			f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
+			f2fs_err(sbi, "inode (%lu) has corrupted xattr",
 						inode->i_ino);
-			set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			error = -EFSCORRUPTED;
-			f2fs_handle_error(F2FS_I_SB(inode),
-						ERROR_CORRUPTED_XATTR);
+			f2fs_handle_error(sbi, ERROR_CORRUPTED_XATTR);
 			goto cleanup;
 		}
 
-- 
2.39.0




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