ceph: fix uninline data function

For CEPH_OSD_CMPXATTR_MODE_U64, OSD expects the u64 to be encoded
as string in object's xattr.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

1 files changed, 21 insertions, 13 deletions

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e723482c5f37..cab1cf5a330b 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1539,19 +1539,27 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
 
         osd_req_op_extent_osd_data_pages(req, 1, &page, len, 0, false, false);
 
-        err = osd_req_op_xattr_init(req, 0, CEPH_OSD_OP_CMPXATTR,
-                                    "inline_version", &inline_version,
-                                    sizeof(inline_version),
-                                    CEPH_OSD_CMPXATTR_OP_GT,
-                                    CEPH_OSD_CMPXATTR_MODE_U64);
-        if (err)
-                goto out_put;
-
-        err = osd_req_op_xattr_init(req, 2, CEPH_OSD_OP_SETXATTR,
-                                    "inline_version", &inline_version,
-                                    sizeof(inline_version), 0, 0);
-        if (err)
-                goto out_put;
+        {
+                __le64 xattr_buf = cpu_to_le64(inline_version);
+                err = osd_req_op_xattr_init(req, 0, CEPH_OSD_OP_CMPXATTR,
+                                            "inline_version", &xattr_buf,
+                                            sizeof(xattr_buf),
+                                            CEPH_OSD_CMPXATTR_OP_GT,
+                                            CEPH_OSD_CMPXATTR_MODE_U64);
+                if (err)
+                        goto out_put;
+        }
+
+        {
+                char xattr_buf[32];
+                int xattr_len = snprintf(xattr_buf, sizeof(xattr_buf),
+                                         "%llu", inline_version);
+                err = osd_req_op_xattr_init(req, 2, CEPH_OSD_OP_SETXATTR,
+                                            "inline_version",
+                                            xattr_buf, xattr_len, 0, 0);
+                if (err)
+                        goto out_put;
+        }
 
         ceph_osdc_build_request(req, 0, NULL, CEPH_NOSNAP, &inode->i_mtime);
         err = ceph_osdc_start_request(&fsc->client->osdc, req, false);