Merge tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "We've continued mainly to fix bugs in this round, as f2fs has been
  shipped in more devices. Especially, we've focused on stabilizing
  checkpoint=disable feature, and provided some interfaces for QA.

  Enhancements:
   - expose FS_NOCOW_FL for pin_file
   - run discard jobs at unmount time with timeout
   - tune discarding thread to avoid idling which consumes power
   - some checking codes to address vulnerabilities
   - give random value to i_generation
   - shutdown with more flags for QA

  Bug fixes:
   - clean up stale objects when mount is failed along with
     checkpoint=disable
   - fix system being stuck due to wrong count by atomic writes
   - handle some corrupted disk cases
   - fix a deadlock in f2fs_read_inline_dir

  We've also added some minor build error fixes and clean-up patches"

* tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (53 commits)
  f2fs: set pin_file under CAP_SYS_ADMIN
  f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
  f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
  f2fs: fix to do sanity check with inode.i_inline_xattr_size
  f2fs: give some messages for inline_xattr_size
  f2fs: don't trigger read IO for beyond EOF page
  f2fs: fix to add refcount once page is tagged PG_private
  f2fs: remove wrong comment in f2fs_invalidate_page()
  f2fs: fix to use kvfree instead of kzfree
  f2fs: print more parameters in trace_f2fs_map_blocks
  f2fs: trace f2fs_ioc_shutdown
  f2fs: fix to avoid deadlock of atomic file operations
  f2fs: fix to dirty inode for i_mode recovery
  f2fs: give random value to i_generation
  f2fs: no need to take page lock in readdir
  f2fs: fix to update iostat correctly in IPU path
  f2fs: fix encrypted page memory leak
  f2fs: make fault injection covering __submit_flush_wait()
  f2fs: fix to retry fill_super only if recovery failed
  f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
  ...

1 files changed, 53 insertions, 24 deletions

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 7ea5c9cede37..87f75ebd2fd6 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -190,6 +190,8 @@ enum {
 #define DEF_CP_INTERVAL			60	/* 60 secs */
 #define DEF_IDLE_INTERVAL		5	/* 5 secs */
 #define DEF_DISABLE_INTERVAL		5	/* 5 secs */
+#define DEF_DISABLE_QUICK_INTERVAL	1	/* 1 secs */
+#define DEF_UMOUNT_DISCARD_TIMEOUT	5	/* 5 secs */
 
 struct cp_control {
 	int reason;
@@ -253,7 +255,7 @@ struct discard_entry {
 /* max discard pend list number */
 #define MAX_PLIST_NUM		512
 #define plist_idx(blk_num)	((blk_num) >= MAX_PLIST_NUM ?		\
-					(MAX_PLIST_NUM - 1) : (blk_num - 1))
+					(MAX_PLIST_NUM - 1) : ((blk_num) - 1))
 
 enum {
 	D_PREP,			/* initial */
@@ -309,6 +311,7 @@ struct discard_policy {
 	bool sync;			/* submit discard with REQ_SYNC flag */
 	bool ordered;			/* issue discard by lba order */
 	unsigned int granularity;	/* discard granularity */
+	int timeout;			/* discard timeout for put_super */
 };
 
 struct discard_cmd_control {
@@ -455,7 +458,6 @@ struct f2fs_flush_device {
 
 /* for inline stuff */
 #define DEF_INLINE_RESERVED_SIZE	1
-#define DEF_MIN_INLINE_SIZE		1
 static inline int get_extra_isize(struct inode *inode);
 static inline int get_inline_xattr_addrs(struct inode *inode);
 #define MAX_INLINE_DATA(inode)	(sizeof(__le32) *			\
@@ -1098,6 +1100,7 @@ enum {
 	SBI_IS_SHUTDOWN,			/* shutdown by ioctl */
 	SBI_IS_RECOVERED,			/* recovered orphan/data */
 	SBI_CP_DISABLED,			/* CP was disabled last mount */
+	SBI_CP_DISABLED_QUICK,			/* CP was disabled quickly */
 	SBI_QUOTA_NEED_FLUSH,			/* need to flush quota info in CP */
 	SBI_QUOTA_SKIP_FLUSH,			/* skip flushing quota in current CP */
 	SBI_QUOTA_NEED_REPAIR,			/* quota file may be corrupted */
@@ -1109,6 +1112,7 @@ enum {
 	DISCARD_TIME,
 	GC_TIME,
 	DISABLE_TIME,
+	UMOUNT_DISCARD_TIMEOUT,
 	MAX_TIME,
 };
 
@@ -1237,8 +1241,6 @@ struct f2fs_sb_info {
 
 	unsigned int nquota_files;		/* # of quota sysfile */
 
-	u32 s_next_generation;			/* for NFS support */
-
 	/* # of pages, see count_type */
 	atomic_t nr_pages[NR_COUNT_TYPE];
 	/* # of allocated blocks */
@@ -1798,13 +1800,12 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
 {
 	atomic_inc(&sbi->nr_pages[count_type]);
 
-	if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
-		count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA ||
-		count_type == F2FS_RD_DATA || count_type == F2FS_RD_NODE ||
-		count_type == F2FS_RD_META)
-		return;
-
-	set_sbi_flag(sbi, SBI_IS_DIRTY);
+	if (count_type == F2FS_DIRTY_DENTS ||
+			count_type == F2FS_DIRTY_NODES ||
+			count_type == F2FS_DIRTY_META ||
+			count_type == F2FS_DIRTY_QDATA ||
+			count_type == F2FS_DIRTY_IMETA)
+		set_sbi_flag(sbi, SBI_IS_DIRTY);
 }
 
 static inline void inode_inc_dirty_pages(struct inode *inode)
@@ -2156,10 +2157,17 @@ static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
 		get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
 		get_pages(sbi, F2FS_WB_CP_DATA) ||
 		get_pages(sbi, F2FS_DIO_READ) ||
-		get_pages(sbi, F2FS_DIO_WRITE) ||
-		atomic_read(&SM_I(sbi)->dcc_info->queued_discard) ||
-		atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
+		get_pages(sbi, F2FS_DIO_WRITE))
 		return false;
+
+	if (SM_I(sbi) && SM_I(sbi)->dcc_info &&
+			atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
+		return false;
+
+	if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
+			atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
+		return false;
+
 	return f2fs_time_over(sbi, type);
 }
 
@@ -2300,11 +2308,12 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr)
 #define F2FS_EXTENTS_FL			0x00080000 /* Inode uses extents */
 #define F2FS_EA_INODE_FL	        0x00200000 /* Inode used for large EA */
 #define F2FS_EOFBLOCKS_FL		0x00400000 /* Blocks allocated beyond EOF */
+#define F2FS_NOCOW_FL			0x00800000 /* Do not cow file */
 #define F2FS_INLINE_DATA_FL		0x10000000 /* Inode has inline data. */
 #define F2FS_PROJINHERIT_FL		0x20000000 /* Create with parents projid */
 #define F2FS_RESERVED_FL		0x80000000 /* reserved for ext4 lib */
 
-#define F2FS_FL_USER_VISIBLE		0x304BDFFF /* User visible flags */
+#define F2FS_FL_USER_VISIBLE		0x30CBDFFF /* User visible flags */
 #define F2FS_FL_USER_MODIFIABLE		0x204BC0FF /* User modifiable flags */
 
 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */
@@ -2761,9 +2770,9 @@ static inline int get_inline_xattr_addrs(struct inode *inode)
 
 #define F2FS_OLD_ATTRIBUTE_SIZE	(offsetof(struct f2fs_inode, i_addr))
 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field)		\
-		((offsetof(typeof(*f2fs_inode), field) +	\
+		((offsetof(typeof(*(f2fs_inode)), field) +	\
 		sizeof((f2fs_inode)->field))			\
-		<= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize))	\
+		<= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize)))	\
 
 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
 {
@@ -2792,8 +2801,8 @@ static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
 
 #define __is_large_section(sbi)		((sbi)->segs_per_sec > 1)
 
-#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META &&	\
-				(!is_read_io(fio->op) || fio->is_meta))
+#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META &&	\
+				(!is_read_io((fio)->op) || (fio)->is_meta))
 
 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type);
@@ -2825,13 +2834,33 @@ static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
 	return true;
 }
 
+static inline void f2fs_set_page_private(struct page *page,
+						unsigned long data)
+{
+	if (PagePrivate(page))
+		return;
+
+	get_page(page);
+	SetPagePrivate(page);
+	set_page_private(page, data);
+}
+
+static inline void f2fs_clear_page_private(struct page *page)
+{
+	if (!PagePrivate(page))
+		return;
+
+	set_page_private(page, 0);
+	ClearPagePrivate(page);
+	f2fs_put_page(page, 0);
+}
+
 /*
  * file.c
  */
 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
-int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock,
-							bool buf_write);
+int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
 int f2fs_truncate(struct inode *inode);
 int f2fs_getattr(const struct path *path, struct kstat *stat,
 			u32 request_mask, unsigned int flags);
@@ -3005,7 +3034,7 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
-bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
+bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
 					struct cp_control *cpc);
 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
@@ -3610,8 +3639,6 @@ extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
 #define f2fs_build_fault_attr(sbi, rate, type)		do { } while (0)
 #endif
 
-#endif
-
 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
 {
 #ifdef CONFIG_QUOTA
@@ -3624,3 +3651,5 @@ static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
 #endif
 	return false;
 }
+
+#endif