From: Hou Tao <houtao1@huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4H3JT CVE: NA --------------------------- Use fs_file_read_do_trace() and trace_fs_file_release() to do that. Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: fang wei <fangwei1@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- fs/ext4/file.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 21b0fc0d6ffed..5c3304ddc5ec9 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -29,6 +29,7 @@ #include <linux/pagevec.h> #include <linux/uio.h> #include <linux/mman.h> +#include <trace/events/fs.h> #include "ext4.h" #include "ext4_jbd2.h" #include "xattr.h" @@ -75,6 +76,7 @@ static ssize_t ext4_file_read_iter(struct kiocb *iocb, struct iov_iter *to) if (IS_DAX(file_inode(iocb->ki_filp))) return ext4_dax_read_iter(iocb, to); #endif + fs_file_read_do_trace(iocb); return generic_file_read_iter(iocb, to); } @@ -85,6 +87,8 @@ static ssize_t ext4_file_read_iter(struct kiocb *iocb, struct iov_iter *to) */ static int ext4_release_file(struct inode *inode, struct file *filp) { + trace_fs_file_release(inode, filp); + if (ext4_test_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE)) { ext4_alloc_da_blocks(inode); ext4_clear_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE); -- 2.25.1