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Message-Id: <1350372294-17939-2-git-send-email-wenqing.lz@taobao.com>
Date: Tue, 16 Oct 2012 15:24:54 +0800
From: Zheng Liu <gnehzuil.liu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 2/2] ext4: add a variable to record the value of map->m_flags in tracepoint
From: Zheng Liu <wenqing.lz@...bao.com>
When we use trace_ext4_ext/ind_map_blocks_exit, we will print the value of
map->m_flags in order that we can understand what currently status is.
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
fs/ext4/extents.c | 2 +-
fs/ext4/indirect.c | 4 ++--
include/trace/events/ext4.h | 18 ++++++++++--------
3 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 4ecc210..204bafa 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4250,7 +4250,7 @@ out2:
}
trace_ext4_ext_map_blocks_exit(inode, map->m_lblk,
- newblock, map->m_len, err ? err : allocated);
+ newblock, map->m_len, map->m_flags, err ? err : allocated);
return err ? err : allocated;
}
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 792e388..a22d296 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -755,8 +755,8 @@ cleanup:
partial--;
}
out:
- trace_ext4_ind_map_blocks_exit(inode, map->m_lblk,
- map->m_pblk, map->m_len, err);
+ trace_ext4_ind_map_blocks_exit(inode, map->m_lblk, map->m_pblk,
+ map->m_len, map->m_flags, err);
return err;
}
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 66d78dc..680c249b 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1520,9 +1520,9 @@ DEFINE_EVENT(ext4__map_blocks_enter, ext4_ind_map_blocks_enter,
DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned int len, int ret),
+ ext4_fsblk_t pblk, unsigned int len, int flags, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret),
+ TP_ARGS(inode, lblk, pblk, len, flags, ret),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -1530,6 +1530,7 @@ DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
__field( ext4_fsblk_t, pblk )
__field( ext4_lblk_t, lblk )
__field( unsigned int, len )
+ __field( int, flags )
__field( int, ret )
),
@@ -1539,28 +1540,29 @@ DECLARE_EVENT_CLASS(ext4__map_blocks_exit,
__entry->pblk = pblk;
__entry->lblk = lblk;
__entry->len = len;
+ __entry->flags = flags;
__entry->ret = ret;
),
- TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u ret %d",
+ TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u flags %x ret %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long) __entry->ino,
__entry->lblk, __entry->pblk,
- __entry->len, __entry->ret)
+ __entry->len, __entry->flags, __entry->ret)
);
DEFINE_EVENT(ext4__map_blocks_exit, ext4_ext_map_blocks_exit,
TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned len, int ret),
+ ext4_fsblk_t pblk, unsigned len, int flags, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret)
+ TP_ARGS(inode, lblk, pblk, len, flags, ret)
);
DEFINE_EVENT(ext4__map_blocks_exit, ext4_ind_map_blocks_exit,
TP_PROTO(struct inode *inode, ext4_lblk_t lblk,
- ext4_fsblk_t pblk, unsigned len, int ret),
+ ext4_fsblk_t pblk, unsigned len, int flags, int ret),
- TP_ARGS(inode, lblk, pblk, len, ret)
+ TP_ARGS(inode, lblk, pblk, len, flags, ret)
);
TRACE_EVENT(ext4_ext_load_extent,
--
1.7.12.rc2.18.g61b472e
--
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