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| author |   Theodore Ts'o <tytso@mit.edu> | 2009-08-31 23:13:11 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-08-31 23:13:11 -0400 |
| commit | b3a3ca8ca0c3c29abc5b2bfe94bb14f3f4590df9 (patch) | |
| tree | 1006f780d43ec8ff90ed11b1eb0d5ed961c9f613 /include/trace | |
| parent | ext4: Restore wbc->range_start in ext4_da_writepages() (diff) | |
| download | linux-dev-b3a3ca8ca0c3c29abc5b2bfe94bb14f3f4590df9.tar.xz linux-dev-b3a3ca8ca0c3c29abc5b2bfe94bb14f3f4590df9.zip | |
ext4: Add new tracepoint: trace_ext4_da_write_pages()
Add a new tracepoint which shows the pages that will be written using
write_cache_pages() by ext4_da_writepages().
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/ext4.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 15051d2d1219..dd43399288ea 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -251,6 +251,40 @@ TRACE_EVENT(ext4_da_writepages, __entry->range_cyclic) ); +TRACE_EVENT(ext4_da_write_pages, + TP_PROTO(struct inode *inode, struct mpage_da_data *mpd), + + TP_ARGS(inode, mpd), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( __u64, b_blocknr ) + __field( __u32, b_size ) + __field( __u32, b_state ) + __field( unsigned long, first_page ) + __field( int, io_done ) + __field( int, pages_written ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->b_blocknr = mpd->b_blocknr; + __entry->b_size = mpd->b_size; + __entry->b_state = mpd->b_state; + __entry->first_page = mpd->first_page; + __entry->io_done = mpd->io_done; + __entry->pages_written = mpd->pages_written; + ), + + TP_printk("dev %s ino %lu b_blocknr %llu b_size %u b_state 0x%04x first_page %lu io_done %d pages_written %d", + jbd2_dev_to_name(__entry->dev), __entry->ino, + __entry->b_blocknr, __entry->b_size, + __entry->b_state, __entry->first_page, + __entry->io_done, __entry->pages_written) +); + TRACE_EVENT(ext4_da_writepages_result, TP_PROTO(struct inode *inode, struct writeback_control *wbc, int ret, int pages_written), |