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f2fs: add tracepoint for f2fs_filemap_fault() 

This patch adds tracepoint for f2fs_filemap_fault().

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2019-04-15 15:22:19 +08:00 committed by Jaegeuk Kim
parent 93770ab7a6
commit d764834378
2 changed files with 28 additions and 0 deletions
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2
fs/f2fs/file.c
View File

@ -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, (unsigned long)ret);
return ret;
}

26
include/trace/events/f2fs.h
View File

@ -1284,6 +1284,32 @@ 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, unsigned long ret),
TP_ARGS(inode, index, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(pgoff_t, index)
__field(unsigned long, 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 = %lx",
show_dev_ino(__entry),
(unsigned long)__entry->index,
__entry->ret)
);
TRACE_EVENT(f2fs_writepages,
TP_PROTO(struct inode *inode, struct writeback_control *wbc, int type),