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-rw-r--r--include/linux/jbd2.h9
-rw-r--r--include/trace/events/ext4.h136
2 files changed, 125 insertions, 20 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 3efc43f3f162..1be23d9fdacb 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1096,7 +1096,6 @@ extern int jbd2_journal_get_undo_access(handle_t *, struct buffer_head *);
void jbd2_journal_set_triggers(struct buffer_head *,
struct jbd2_buffer_trigger_type *type);
extern int jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
-extern void jbd2_journal_release_buffer (handle_t *, struct buffer_head *);
extern int jbd2_journal_forget (handle_t *, struct buffer_head *);
extern void journal_sync_buffer (struct buffer_head *);
extern void jbd2_journal_invalidatepage(journal_t *,
@@ -1303,15 +1302,21 @@ static inline int jbd_space_needed(journal_t *journal)
extern int jbd_blocks_per_page(struct inode *inode);
+/* JBD uses a CRC32 checksum */
+#define JBD_MAX_CHECKSUM_SIZE 4
+
static inline u32 jbd2_chksum(journal_t *journal, u32 crc,
const void *address, unsigned int length)
{
struct {
struct shash_desc shash;
- char ctx[crypto_shash_descsize(journal->j_chksum_driver)];
+ char ctx[JBD_MAX_CHECKSUM_SIZE];
} desc;
int err;
+ BUG_ON(crypto_shash_descsize(journal->j_chksum_driver) >
+ JBD_MAX_CHECKSUM_SIZE);
+
desc.shash.tfm = journal->j_chksum_driver;
desc.shash.flags = 0;
*(u32 *)desc.ctx = crc;
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index d49b285385e8..f6372b011366 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -15,6 +15,7 @@ struct ext4_inode_info;
struct mpage_da_data;
struct ext4_map_blocks;
struct ext4_extent;
+struct extent_status;
#define EXT4_I(inode) (container_of(inode, struct ext4_inode_info, vfs_inode))
@@ -1519,10 +1520,9 @@ DEFINE_EVENT(ext4__map_blocks_enter, ext4_ind_map_blocks_enter,
);
DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
- TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned int len, int ret),
+ TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret),
+ TP_ARGS(inode, map, ret),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -1530,37 +1530,37 @@ DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
__field( ext4_fsblk_t, pblk )
__field( ext4_lblk_t, lblk )
__field( unsigned int, len )
+ __field( unsigned int, flags )
__field( int, ret )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->pblk = pblk;
- __entry->lblk = lblk;
- __entry->len = len;
+ __entry->pblk = map->m_pblk;
+ __entry->lblk = map->m_lblk;
+ __entry->len = map->m_len;
+ __entry->flags = map->m_flags;
__entry->ret = ret;
),
- TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u ret %d",
+ TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u flags %x ret %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long) __entry->ino,
__entry->lblk, __entry->pblk,
- __entry->len, __entry->ret)
+ __entry->len, __entry->flags, __entry->ret)
);
DEFINE_EVENT(ext4__map_blocks_exit, ext4_ext_map_blocks_exit,
- TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned len, int ret),
+ TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret)
+ TP_ARGS(inode, map, ret)
);
DEFINE_EVENT(ext4__map_blocks_exit, ext4_ind_map_blocks_exit,
- TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned len, int ret),
+ TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret)
+ TP_ARGS(inode, map, ret)
);
TRACE_EVENT(ext4_ext_load_extent,
@@ -1680,10 +1680,10 @@ DEFINE_EVENT(ext4__trim, ext4_trim_all_free,
);
TRACE_EVENT(ext4_ext_handle_uninitialized_extents,
- TP_PROTO(struct inode *inode, struct ext4_map_blocks *map,
+ TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, int flags,
unsigned int allocated, ext4_fsblk_t newblock),
- TP_ARGS(inode, map, allocated, newblock),
+ TP_ARGS(inode, map, flags, allocated, newblock),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -1699,7 +1699,7 @@ TRACE_EVENT(ext4_ext_handle_uninitialized_extents,
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->flags = map->m_flags;
+ __entry->flags = flags;
__entry->lblk = map->m_lblk;
__entry->pblk = map->m_pblk;
__entry->len = map->m_len;
@@ -1707,7 +1707,7 @@ TRACE_EVENT(ext4_ext_handle_uninitialized_extents,
__entry->newblk = newblock;
),
- TP_printk("dev %d,%d ino %lu m_lblk %u m_pblk %llu m_len %u flags %d"
+ TP_printk("dev %d,%d ino %lu m_lblk %u m_pblk %llu m_len %u flags %x "
"allocated %d newblock %llu",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long) __entry->ino,
@@ -2055,6 +2055,106 @@ TRACE_EVENT(ext4_ext_remove_space_done,
(unsigned short) __entry->eh_entries)
);
+TRACE_EVENT(ext4_es_insert_extent,
+ TP_PROTO(struct inode *inode, ext4_lblk_t start, ext4_lblk_t len),
+
+ TP_ARGS(inode, start, len),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( loff_t, start )
+ __field( loff_t, len )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->start = start;
+ __entry->len = len;
+ ),
+
+ TP_printk("dev %d,%d ino %lu es [%lld/%lld)",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long) __entry->ino,
+ __entry->start, __entry->len)
+);
+
+TRACE_EVENT(ext4_es_remove_extent,
+ TP_PROTO(struct inode *inode, ext4_lblk_t start, ext4_lblk_t len),
+
+ TP_ARGS(inode, start, len),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( loff_t, start )
+ __field( loff_t, len )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->start = start;
+ __entry->len = len;
+ ),
+
+ TP_printk("dev %d,%d ino %lu es [%lld/%lld)",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long) __entry->ino,
+ __entry->start, __entry->len)
+);
+
+TRACE_EVENT(ext4_es_find_extent_enter,
+ TP_PROTO(struct inode *inode, ext4_lblk_t start),
+
+ TP_ARGS(inode, start),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( ext4_lblk_t, start )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->start = start;
+ ),
+
+ TP_printk("dev %d,%d ino %lu start %u",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long) __entry->ino, __entry->start)
+);
+
+TRACE_EVENT(ext4_es_find_extent_exit,
+ TP_PROTO(struct inode *inode, struct extent_status *es,
+ ext4_lblk_t ret),
+
+ TP_ARGS(inode, es, ret),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( ext4_lblk_t, start )
+ __field( ext4_lblk_t, len )
+ __field( ext4_lblk_t, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->start = es->start;
+ __entry->len = es->len;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev %d,%d ino %lu es [%u/%u) ret %u",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long) __entry->ino,
+ __entry->start, __entry->len, __entry->ret)
+);
+
#endif /* _TRACE_EXT4_H */
/* This part must be outside protection */