diff options
| -rw-r--r-- | fs/ext4/extents_status.c | 8 | ||||
| -rw-r--r-- | include/trace/events/ext4.h | 101 |
2 files changed, 109 insertions, 0 deletions
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c index 02c09be3d77..564d981a2fc 100644 --- a/fs/ext4/extents_status.c +++ b/fs/ext4/extents_status.c @@ -14,6 +14,8 @@ #include "extents_status.h" #include "ext4_extents.h" +#include <trace/events/ext4.h> + /* * According to previous discussion in Ext4 Developer Workshop, we * will introduce a new structure called io tree to track all extent @@ -224,6 +226,8 @@ ext4_lblk_t ext4_es_find_extent(struct inode *inode, struct extent_status *es) struct rb_node *node; ext4_lblk_t ret = EXT_MAX_BLOCKS; + trace_ext4_es_find_extent_enter(inode, es->start); + read_lock(&EXT4_I(inode)->i_es_lock); tree = &EXT4_I(inode)->i_es_tree; @@ -253,6 +257,8 @@ out: } read_unlock(&EXT4_I(inode)->i_es_lock); + + trace_ext4_es_find_extent_exit(inode, es, ret); return ret; } @@ -393,6 +399,7 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t offset, struct ext4_es_tree *tree; int err = 0; + trace_ext4_es_insert_extent(inode, offset, len); es_debug("add [%u/%u) to extent status tree of inode %lu\n", offset, len, inode->i_ino); @@ -422,6 +429,7 @@ int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t offset, ext4_lblk_t len1, len2, end; int err = 0; + trace_ext4_es_remove_extent(inode, offset, len); es_debug("remove [%u/%u) from extent status tree of inode %lu\n", offset, len, inode->i_ino); diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index d2a125a6db8..f6372b01136 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)) @@ -2054,6 +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 */ |