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| author | Brian Foster <bfoster@redhat.com> | 2013-03-18 15:51:48 +0100 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-03-22 22:07:56 +0100 |
| commit | 19cb7e3854c9afe2ee968cbdd92293ec09e43bf3 (patch) | |
| tree | ce82d40276e1d19571770f70d30ca49b1dbaa984 /fs/xfs/xfs_trace.h | |
| parent | xfs: add quota-driven speculative preallocation throttling (diff) | |
| download | linux-19cb7e3854c9afe2ee968cbdd92293ec09e43bf3.tar.xz linux-19cb7e3854c9afe2ee968cbdd92293ec09e43bf3.zip | |
xfs: xfs_iomap_prealloc_size() tracepoint
Add a tracepoint to provide some feedback on preallocation size
calculation.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trace.h')
| -rw-r--r-- | fs/xfs/xfs_trace.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 16a812977eab..aa4db3307d36 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -619,6 +619,30 @@ DECLARE_EVENT_CLASS(xfs_iref_class, (char *)__entry->caller_ip) ) +TRACE_EVENT(xfs_iomap_prealloc_size, + TP_PROTO(struct xfs_inode *ip, xfs_fsblock_t blocks, int shift, + unsigned int writeio_blocks), + TP_ARGS(ip, blocks, shift, writeio_blocks), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(xfs_fsblock_t, blocks) + __field(int, shift) + __field(unsigned int, writeio_blocks) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->blocks = blocks; + __entry->shift = shift; + __entry->writeio_blocks = writeio_blocks; + ), + TP_printk("dev %d:%d ino 0x%llx prealloc blocks %llu shift %d " + "m_writeio_blocks %u", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, + __entry->blocks, __entry->shift, __entry->writeio_blocks) +) + #define DEFINE_IREF_EVENT(name) \ DEFINE_EVENT(xfs_iref_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \ |