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authorZheng Liu <wenqing.lz@taobao.com>2013-02-18 00:26:51 -0500
committerTheodore Ts'o <tytso@mit.edu>2013-02-18 00:26:51 -0500
commit06b0c886214a223dde7b21cbfc3008fd20a8ce16 (patch)
treec1d3c51622e2a885446e8d617b953405412fc3aa /include/trace/events
parent0f70b40613ee14b0cadafeb461034cff81b4419a (diff)
ext4: refine extent status tree
This commit refines the extent status tree code. 1) A prefix 'es_' is added to to the extent status tree structure members. 2) Refactored es_remove_extent() so that __es_remove_extent() can be used by es_insert_extent() to remove the old extent entry(-ies) before inserting a new one. 3) Rename extent_status_end() to ext4_es_end() 4) ext4_es_can_be_merged() is define to check whether two extents can be merged or not. 5) Update and clarified comments. Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/trace/events')
-rw-r--r--include/trace/events/ext4.h40
1 files changed, 20 insertions, 20 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 6080ea1380b8..52c923851959 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2093,75 +2093,75 @@ TRACE_EVENT(ext4_ext_remove_space_done,
);
TRACE_EVENT(ext4_es_insert_extent,
- TP_PROTO(struct inode *inode, ext4_lblk_t start, ext4_lblk_t len),
+ TP_PROTO(struct inode *inode, ext4_lblk_t lblk, ext4_lblk_t len),
- TP_ARGS(inode, start, len),
+ TP_ARGS(inode, lblk, len),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( ino_t, ino )
- __field( loff_t, start )
+ __field( loff_t, lblk )
__field( loff_t, len )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->start = start;
+ __entry->lblk = lblk;
__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)
+ __entry->lblk, __entry->len)
);
TRACE_EVENT(ext4_es_remove_extent,
- TP_PROTO(struct inode *inode, ext4_lblk_t start, ext4_lblk_t len),
+ TP_PROTO(struct inode *inode, ext4_lblk_t lblk, ext4_lblk_t len),
- TP_ARGS(inode, start, len),
+ TP_ARGS(inode, lblk, len),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( ino_t, ino )
- __field( loff_t, start )
+ __field( loff_t, lblk )
__field( loff_t, len )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->start = start;
+ __entry->lblk = lblk;
__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)
+ __entry->lblk, __entry->len)
);
TRACE_EVENT(ext4_es_find_extent_enter,
- TP_PROTO(struct inode *inode, ext4_lblk_t start),
+ TP_PROTO(struct inode *inode, ext4_lblk_t lblk),
- TP_ARGS(inode, start),
+ TP_ARGS(inode, lblk),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( ino_t, ino )
- __field( ext4_lblk_t, start )
+ __field( ext4_lblk_t, lblk )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->start = start;
+ __entry->lblk = lblk;
),
- TP_printk("dev %d,%d ino %lu start %u",
+ TP_printk("dev %d,%d ino %lu lblk %u",
MAJOR(__entry->dev), MINOR(__entry->dev),
- (unsigned long) __entry->ino, __entry->start)
+ (unsigned long) __entry->ino, __entry->lblk)
);
TRACE_EVENT(ext4_es_find_extent_exit,
@@ -2173,7 +2173,7 @@ TRACE_EVENT(ext4_es_find_extent_exit,
TP_STRUCT__entry(
__field( dev_t, dev )
__field( ino_t, ino )
- __field( ext4_lblk_t, start )
+ __field( ext4_lblk_t, lblk )
__field( ext4_lblk_t, len )
__field( ext4_lblk_t, ret )
),
@@ -2181,15 +2181,15 @@ TRACE_EVENT(ext4_es_find_extent_exit,
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
- __entry->start = es->start;
- __entry->len = es->len;
+ __entry->lblk = es->es_lblk;
+ __entry->len = es->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)
+ __entry->lblk, __entry->len, __entry->ret)
);
#endif /* _TRACE_EXT4_H */