Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "Various cleanups and bug fixes in ext4's extent status tree,
  journalling, and block allocator subsystems.

  Also improve performance for parallel DIO overwrites"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (55 commits)
  ext4: avoid updating the superblock on a r/o mount if not needed
  jbd2: skip reading super block if it has been verified
  ext4: fix to check return value of freeze_bdev() in ext4_shutdown()
  ext4: refactoring to use the unified helper ext4_quotas_off()
  ext4: turn quotas off if mount failed after enabling quotas
  ext4: update doc about journal superblock description
  ext4: add journal cycled recording support
  jbd2: continue to record log between each mount
  jbd2: remove j_format_version
  jbd2: factor out journal initialization from journal_get_superblock()
  jbd2: switch to check format version in superblock directly
  jbd2: remove unused feature macros
  ext4: ext4_put_super: Remove redundant checking for 'sbi->s_journal_bdev'
  ext4: Fix reusing stale buffer heads from last failed mounting
  ext4: allow concurrent unaligned dio overwrites
  ext4: clean up mballoc criteria comments
  ext4: make ext4_zeroout_es() return void
  ext4: make ext4_es_insert_extent() return void
  ext4: make ext4_es_insert_delayed_block() return void
  ext4: make ext4_es_remove_extent() return void
  ...

2 files changed, 50 insertions, 36 deletions

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index f619bae1dcc5..d860499e15e4 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -265,8 +265,10 @@ typedef struct journal_superblock_s
 	__u8	s_padding2[3];
 /* 0x0054 */
 	__be32	s_num_fc_blks;		/* Number of fast commit blocks */
-/* 0x0058 */
-	__u32	s_padding[41];
+	__be32	s_head;			/* blocknr of head of log, only uptodate
+					 * while the filesystem is clean */
+/* 0x005C */
+	__u32	s_padding[40];
 	__be32	s_checksum;		/* crc32c(superblock) */
 
 /* 0x0100 */
@@ -274,17 +276,6 @@ typedef struct journal_superblock_s
 /* 0x0400 */
 } journal_superblock_t;
 
-/* Use the jbd2_{has,set,clear}_feature_* helpers; these will be removed */
-#define JBD2_HAS_COMPAT_FEATURE(j,mask)					\
-	((j)->j_format_version >= 2 &&					\
-	 ((j)->j_superblock->s_feature_compat & cpu_to_be32((mask))))
-#define JBD2_HAS_RO_COMPAT_FEATURE(j,mask)				\
-	((j)->j_format_version >= 2 &&					\
-	 ((j)->j_superblock->s_feature_ro_compat & cpu_to_be32((mask))))
-#define JBD2_HAS_INCOMPAT_FEATURE(j,mask)				\
-	((j)->j_format_version >= 2 &&					\
-	 ((j)->j_superblock->s_feature_incompat & cpu_to_be32((mask))))
-
 #define JBD2_FEATURE_COMPAT_CHECKSUM		0x00000001
 
 #define JBD2_FEATURE_INCOMPAT_REVOKE		0x00000001
@@ -804,11 +795,6 @@ struct journal_s
 	journal_superblock_t	*j_superblock;
 
 	/**
-	 * @j_format_version: Version of the superblock format.
-	 */
-	int			j_format_version;
-
-	/**
 	 * @j_state_lock: Protect the various scalars in the journal.
 	 */
 	rwlock_t		j_state_lock;
@@ -1324,11 +1310,22 @@ struct journal_s
 		rwsem_release(&j->j_trans_commit_map, _THIS_IP_); \
 	} while (0)
 
+/*
+ * We can support any known requested features iff the
+ * superblock is not in version 1.  Otherwise we fail to support any
+ * extended sb features.
+ */
+static inline bool jbd2_format_support_feature(journal_t *j)
+{
+	return j->j_superblock->s_header.h_blocktype !=
+					cpu_to_be32(JBD2_SUPERBLOCK_V1);
+}
+
 /* journal feature predicate functions */
 #define JBD2_FEATURE_COMPAT_FUNCS(name, flagname) \
 static inline bool jbd2_has_feature_##name(journal_t *j) \
 { \
-	return ((j)->j_format_version >= 2 && \
+	return (jbd2_format_support_feature(j) && \
 		((j)->j_superblock->s_feature_compat & \
 		 cpu_to_be32(JBD2_FEATURE_COMPAT_##flagname)) != 0); \
 } \
@@ -1346,7 +1343,7 @@ static inline void jbd2_clear_feature_##name(journal_t *j) \
 #define JBD2_FEATURE_RO_COMPAT_FUNCS(name, flagname) \
 static inline bool jbd2_has_feature_##name(journal_t *j) \
 { \
-	return ((j)->j_format_version >= 2 && \
+	return (jbd2_format_support_feature(j) && \
 		((j)->j_superblock->s_feature_ro_compat & \
 		 cpu_to_be32(JBD2_FEATURE_RO_COMPAT_##flagname)) != 0); \
 } \
@@ -1364,7 +1361,7 @@ static inline void jbd2_clear_feature_##name(journal_t *j) \
 #define JBD2_FEATURE_INCOMPAT_FUNCS(name, flagname) \
 static inline bool jbd2_has_feature_##name(journal_t *j) \
 { \
-	return ((j)->j_format_version >= 2 && \
+	return (jbd2_format_support_feature(j) && \
 		((j)->j_superblock->s_feature_incompat & \
 		 cpu_to_be32(JBD2_FEATURE_INCOMPAT_##flagname)) != 0); \
 } \
@@ -1400,6 +1397,9 @@ JBD2_FEATURE_INCOMPAT_FUNCS(fast_commit,	FAST_COMMIT)
 #define JBD2_ABORT_ON_SYNCDATA_ERR	0x040	/* Abort the journal on file
 						 * data write error in ordered
 						 * mode */
+#define JBD2_CYCLE_RECORD		0x080	/* Journal cycled record log on
+						 * clean and empty filesystem
+						 * logging area */
 #define JBD2_FAST_COMMIT_ONGOING	0x100	/* Fast commit is ongoing */
 #define JBD2_FULL_COMMIT_ONGOING	0x200	/* Full commit is ongoing */
 #define JBD2_JOURNAL_FLUSH_DISCARD	0x0001
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index ebccf6a6aa1b..65029dfb92fb 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -120,6 +120,20 @@ TRACE_DEFINE_ENUM(EXT4_FC_REASON_MAX);
 		{ EXT4_FC_REASON_INODE_JOURNAL_DATA,	"INODE_JOURNAL_DATA"}, \
 		{ EXT4_FC_REASON_ENCRYPTED_FILENAME,	"ENCRYPTED_FILENAME"})
 
+TRACE_DEFINE_ENUM(CR_POWER2_ALIGNED);
+TRACE_DEFINE_ENUM(CR_GOAL_LEN_FAST);
+TRACE_DEFINE_ENUM(CR_BEST_AVAIL_LEN);
+TRACE_DEFINE_ENUM(CR_GOAL_LEN_SLOW);
+TRACE_DEFINE_ENUM(CR_ANY_FREE);
+
+#define show_criteria(cr)                                               \
+	__print_symbolic(cr,                                            \
+			 { CR_POWER2_ALIGNED, "CR_POWER2_ALIGNED" },	\
+			 { CR_GOAL_LEN_FAST, "CR_GOAL_LEN_FAST" },      \
+			 { CR_BEST_AVAIL_LEN, "CR_BEST_AVAIL_LEN" },    \
+			 { CR_GOAL_LEN_SLOW, "CR_GOAL_LEN_SLOW" },      \
+			 { CR_ANY_FREE, "CR_ANY_FREE" })
+
 TRACE_EVENT(ext4_other_inode_update_time,
 	TP_PROTO(struct inode *inode, ino_t orig_ino),
 
@@ -560,10 +574,10 @@ TRACE_EVENT(ext4_writepages_result,
 		  (unsigned long) __entry->writeback_index)
 );
 
-DECLARE_EVENT_CLASS(ext4__page_op,
-	TP_PROTO(struct page *page),
+DECLARE_EVENT_CLASS(ext4__folio_op,
+	TP_PROTO(struct inode *inode, struct folio *folio),
 
-	TP_ARGS(page),
+	TP_ARGS(inode, folio),
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
@@ -573,29 +587,29 @@ DECLARE_EVENT_CLASS(ext4__page_op,
 	),
 
 	TP_fast_assign(
-		__entry->dev	= page->mapping->host->i_sb->s_dev;
-		__entry->ino	= page->mapping->host->i_ino;
-		__entry->index	= page->index;
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->index	= folio->index;
 	),
 
-	TP_printk("dev %d,%d ino %lu page_index %lu",
+	TP_printk("dev %d,%d ino %lu folio_index %lu",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  (unsigned long) __entry->index)
 );
 
-DEFINE_EVENT(ext4__page_op, ext4_readpage,
+DEFINE_EVENT(ext4__folio_op, ext4_read_folio,
 
-	TP_PROTO(struct page *page),
+	TP_PROTO(struct inode *inode, struct folio *folio),
 
-	TP_ARGS(page)
+	TP_ARGS(inode, folio)
 );
 
-DEFINE_EVENT(ext4__page_op, ext4_releasepage,
+DEFINE_EVENT(ext4__folio_op, ext4_release_folio,
 
-	TP_PROTO(struct page *page),
+	TP_PROTO(struct inode *inode, struct folio *folio),
 
-	TP_ARGS(page)
+	TP_ARGS(inode, folio)
 );
 
 DECLARE_EVENT_CLASS(ext4_invalidate_folio_op,
@@ -1063,7 +1077,7 @@ TRACE_EVENT(ext4_mballoc_alloc,
 	),
 
 	TP_printk("dev %d,%d inode %lu orig %u/%d/%u@%u goal %u/%d/%u@%u "
-		  "result %u/%d/%u@%u blks %u grps %u cr %u flags %s "
+		  "result %u/%d/%u@%u blks %u grps %u cr %s flags %s "
 		  "tail %u broken %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
@@ -1073,7 +1087,7 @@ TRACE_EVENT(ext4_mballoc_alloc,
 		  __entry->goal_len, __entry->goal_logical,
 		  __entry->result_group, __entry->result_start,
 		  __entry->result_len, __entry->result_logical,
-		  __entry->found, __entry->groups, __entry->cr,
+		  __entry->found, __entry->groups, show_criteria(__entry->cr),
 		  show_mballoc_flags(__entry->flags), __entry->tail,
 		  __entry->buddy ? 1 << __entry->buddy : 0)
 );