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| author | Zheng Liu <wenqing.lz@taobao.com> | 2013-01-17 02:21:26 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-01-17 02:21:26 +0100 |
| commit | aaddea812cb0a2dc38b55ba557b68999bc2f6203 (patch) | |
| tree | a0c351a893ee132fdb36a3693dd9af5e126f7546 | |
| parent | ext4: trigger the lazy inode table initialization after resize (diff) | |
| download | linux-aaddea812cb0a2dc38b55ba557b68999bc2f6203.tar.xz linux-aaddea812cb0a2dc38b55ba557b68999bc2f6203.zip | |
ext4: add tracepoint in punching hole
This patch adds a tracepoint in ext4_punch_hole.
CC: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/inode.c | 2 | ||||
| -rw-r--r-- | include/trace/events/ext4.h | 25 |
2 files changed, 27 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 93a7e8453a68..5abf89c100b9 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3567,6 +3567,8 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length) return -EOPNOTSUPP; } + trace_ext4_punch_hole(inode, offset, length); + return ext4_ext_punch_hole(file, offset, length); } diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 7e8c36bc7082..6080ea1380b8 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -1324,6 +1324,31 @@ TRACE_EVENT(ext4_fallocate_exit, __entry->ret) ); +TRACE_EVENT(ext4_punch_hole, + TP_PROTO(struct inode *inode, loff_t offset, loff_t len), + + TP_ARGS(inode, offset, len), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( loff_t, offset ) + __field( loff_t, len ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->offset = offset; + __entry->len = len; + ), + + TP_printk("dev %d,%d ino %lu offset %lld len %lld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->offset, __entry->len) +); + TRACE_EVENT(ext4_unlink_enter, TP_PROTO(struct inode *parent, struct dentry *dentry), |