diff options
| -rw-r--r-- | fs/fs-writeback.c | 30 | ||||
| -rw-r--r-- | include/trace/events/writeback.h | 36 |
2 files changed, 45 insertions, 21 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index dd41437b7a1f..65cd14769226 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -373,21 +373,8 @@ writeback_single_inode(struct inode *inode, struct bdi_writeback *wb, WARN_ON(inode->i_state & I_WILL_FREE); if (inode->i_state & I_SYNC) { - /* - * If this inode is locked for writeback and we are not doing - * writeback-for-data-integrity, move it to b_more_io so that - * writeback can proceed with the other inodes on s_io. - * - * We'll have another go at writing back this inode when we - * completed a full scan of b_io. - */ - if (wbc->sync_mode != WB_SYNC_ALL) { - requeue_io(inode, wb); - trace_writeback_single_inode_requeue(inode, wbc, - nr_to_write); + if (wbc->sync_mode != WB_SYNC_ALL) return 0; - } - /* * It's a data-integrity sync. We must wait. */ @@ -576,6 +563,21 @@ static long writeback_sb_inodes(struct super_block *sb, redirty_tail(inode, wb); continue; } + if ((inode->i_state & I_SYNC) && wbc.sync_mode != WB_SYNC_ALL) { + /* + * If this inode is locked for writeback and we are not + * doing writeback-for-data-integrity, move it to + * b_more_io so that writeback can proceed with the + * other inodes on s_io. + * + * We'll have another go at writing back this inode + * when we completed a full scan of b_io. + */ + spin_unlock(&inode->i_lock); + requeue_io(inode, wb); + trace_writeback_sb_inodes_requeue(inode); + continue; + } __iget(inode); write_chunk = writeback_chunk_size(wb->bdi, work); wbc.nr_to_write = write_chunk; diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 7b81887b023f..b453d92c2253 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -372,6 +372,35 @@ TRACE_EVENT(balance_dirty_pages, ) ); +TRACE_EVENT(writeback_sb_inodes_requeue, + + TP_PROTO(struct inode *inode), + TP_ARGS(inode), + + TP_STRUCT__entry( + __array(char, name, 32) + __field(unsigned long, ino) + __field(unsigned long, state) + __field(unsigned long, dirtied_when) + ), + + TP_fast_assign( + strncpy(__entry->name, + dev_name(inode_to_bdi(inode)->dev), 32); + __entry->ino = inode->i_ino; + __entry->state = inode->i_state; + __entry->dirtied_when = inode->dirtied_when; + ), + + TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu", + __entry->name, + __entry->ino, + show_inode_state(__entry->state), + __entry->dirtied_when, + (jiffies - __entry->dirtied_when) / HZ + ) +); + DECLARE_EVENT_CLASS(writeback_congest_waited_template, TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), @@ -450,13 +479,6 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template, ) ); -DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue, - TP_PROTO(struct inode *inode, - struct writeback_control *wbc, - unsigned long nr_to_write), - TP_ARGS(inode, wbc, nr_to_write) -); - DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, TP_PROTO(struct inode *inode, struct writeback_control *wbc, |