Although, mmap-write of ceph update the time of file using file_update_time.Because it don't mark the relative cap so the time can't save.
Signed-off-by: Jianpeng Ma <[email protected]> --- fs/ceph/addr.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 38b5c1b..52f7c7c 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -1231,10 +1231,18 @@ static int ceph_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) ret = ceph_update_writeable_page(vma->vm_file, off, len, page); if (ret == 0) { + int dirty; + struct ceph_inode_info *ci = ceph_inode(inode); /* success. we'll keep the page locked. */ set_page_dirty(page); up_read(&mdsc->snap_rwsem); ret = VM_FAULT_LOCKED; + + spin_lock(&ci->i_ceph_lock); + dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); + spin_unlock(&ci->i_ceph_lock); + if (dirty) + __mark_inode_dirty(inode, dirty); } else { if (ret == -ENOMEM) ret = VM_FAULT_OOM; -- 1.8.1.2
