Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [PATCH v2 4/5] f2fs: add tracepoint for f2fs_filemap_fault() | Date | Mon, 15 Apr 2019 15:22:19 +0800 |
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This patch adds tracepoint for f2fs_filemap_fault().
Signed-off-by: Chao Yu <yuchao0@huawei.com> --- v2: - fix wrong type of @ret parameter fs/f2fs/file.c | 2 ++ include/trace/events/f2fs.h | 26 ++++++++++++++++++++++++++ 2 files changed, 28 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 30d49467578e..578486e03427 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -39,6 +39,8 @@ static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf) ret = filemap_fault(vmf); up_read(&F2FS_I(inode)->i_mmap_sem); + trace_f2fs_filemap_fault(inode, vmf->pgoff, ret); + return ret; } diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index a3916b4dd57e..cfa0dcdd1462 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -1253,6 +1253,32 @@ DEFINE_EVENT(f2fs__page, f2fs_commit_inmem_page, TP_ARGS(page, type) ); +TRACE_EVENT(f2fs_filemap_fault, + + TP_PROTO(struct inode *inode, pgoff_t index, enum vm_fault_reason ret), + + TP_ARGS(inode, index, ret), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(pgoff_t, index) + __field(enum vm_fault_reason, ret) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->index = index; + __entry->ret = ret; + ), + + TP_printk("dev = (%d,%d), ino = %lu, index = %lu, ret = %u", + show_dev_ino(__entry), + (unsigned long)__entry->index, + ret) +); + TRACE_EVENT(f2fs_writepages, TP_PROTO(struct inode *inode, struct writeback_control *wbc, int type), -- 2.18.0.rc1
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