diff options
| author | Zhang Yi <yi.zhang@huawei.com> | 2026-10-09 18:30:20 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2026-10-15 10:53:13 -0400 |
| commit | 008f019ab559b90171b5ecf7d8f5f6f22cd35687 (patch) | |
| tree | 0ea40166158369750efcdad402e85fa1d6a8d108 /include/trace | |
| parent | 3c612a572094291a752fe983af2868cde634ba02 (diff) | |
ext4: add block mapping tracepoints for iomap buffered I/O path
Add tracepoints for iomap buffered read, write, partial block zeroing,
and writeback operations to help debug the iomap buffered I/O path.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: syzbot@syzkaller.appspotmail.com
Link: https://patch.msgid.link/20261009103033.2920530-20-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/ext4.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 7028a28316fa..bcf80f518e61 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -3157,6 +3157,53 @@ TRACE_EVENT(ext4_move_extent_exit, __entry->ret) ); +DECLARE_EVENT_CLASS(ext4_set_iomap_class, + TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, + loff_t offset, loff_t length, unsigned int flags), + TP_ARGS(inode, map, offset, length, flags), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(u64, ino) + __field(ext4_lblk_t, m_lblk) + __field(ext4_fsblk_t, pblk) + __field(unsigned int, m_len) + __field(unsigned int, m_flags) + __field(u64, m_seq) + __field(loff_t, offset) + __field(loff_t, length) + __field(unsigned int, iomap_flags) + ), + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->m_lblk = map->m_lblk; + __entry->pblk = map->m_pblk; + __entry->m_len = map->m_len; + __entry->m_flags = map->m_flags; + __entry->m_seq = map->m_seq; + __entry->offset = offset; + __entry->length = length; + __entry->iomap_flags = flags; + + ), + TP_printk("dev %d:%d ino %llu m_lblk %u pblk %llu m_len %u m_flags %s m_seq %llu orig_off 0x%llx orig_len 0x%llx iomap_flags 0x%x", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, __entry->m_lblk, __entry->pblk, __entry->m_len, + show_mflags(__entry->m_flags), __entry->m_seq, + __entry->offset, __entry->length, __entry->iomap_flags) +) + +#define DEFINE_SET_IOMAP_EVENT(name) \ +DEFINE_EVENT(ext4_set_iomap_class, name, \ + TP_PROTO(struct inode *inode, struct ext4_map_blocks *map, \ + loff_t offset, loff_t length, unsigned int flags), \ + TP_ARGS(inode, map, offset, length, flags)) + +DEFINE_SET_IOMAP_EVENT(ext4_iomap_buffered_read_begin); +DEFINE_SET_IOMAP_EVENT(ext4_iomap_buffered_write_begin); +DEFINE_SET_IOMAP_EVENT(ext4_iomap_map_writeback_range); +DEFINE_SET_IOMAP_EVENT(ext4_iomap_zero_begin); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ |