diff options
| -rw-r--r-- | fs/fs-writeback.c | 9 | ||||
| -rw-r--r-- | include/trace/events/writeback.h | 22 |
2 files changed, 25 insertions, 6 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 1fcce8345da3..6f9c9f6f5157 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -990,8 +990,10 @@ void sb_mark_inode_writeback(struct inode *inode) if (list_empty(&inode->i_wb_list)) { spin_lock_irqsave(&sb->s_inode_wblist_lock, flags); - if (list_empty(&inode->i_wb_list)) + if (list_empty(&inode->i_wb_list)) { list_add_tail(&inode->i_wb_list, &sb->s_inodes_wb); + trace_sb_mark_inode_writeback(inode); + } spin_unlock_irqrestore(&sb->s_inode_wblist_lock, flags); } } @@ -1006,7 +1008,10 @@ void sb_clear_inode_writeback(struct inode *inode) if (!list_empty(&inode->i_wb_list)) { spin_lock_irqsave(&sb->s_inode_wblist_lock, flags); - list_del_init(&inode->i_wb_list); + if (!list_empty(&inode->i_wb_list)) { + list_del_init(&inode->i_wb_list); + trace_sb_clear_inode_writeback(inode); + } spin_unlock_irqrestore(&sb->s_inode_wblist_lock, flags); } } diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 73614ce1d204..531f5811ff6b 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -696,7 +696,7 @@ DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, TP_ARGS(inode, wbc, nr_to_write) ); -DECLARE_EVENT_CLASS(writeback_lazytime_template, +DECLARE_EVENT_CLASS(writeback_inode_template, TP_PROTO(struct inode *inode), TP_ARGS(inode), @@ -723,25 +723,39 @@ DECLARE_EVENT_CLASS(writeback_lazytime_template, show_inode_state(__entry->state), __entry->mode) ); -DEFINE_EVENT(writeback_lazytime_template, writeback_lazytime, +DEFINE_EVENT(writeback_inode_template, writeback_lazytime, TP_PROTO(struct inode *inode), TP_ARGS(inode) ); -DEFINE_EVENT(writeback_lazytime_template, writeback_lazytime_iput, +DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput, TP_PROTO(struct inode *inode), TP_ARGS(inode) ); -DEFINE_EVENT(writeback_lazytime_template, writeback_dirty_inode_enqueue, +DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue, TP_PROTO(struct inode *inode), TP_ARGS(inode) ); +/* + * Inode writeback list tracking. + */ + +DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback, + TP_PROTO(struct inode *inode), + TP_ARGS(inode) +); + +DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback, + TP_PROTO(struct inode *inode), + TP_ARGS(inode) +); + #endif /* _TRACE_WRITEBACK_H */ /* This part must be outside protection */ |