X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosd-ldiskfs%2Fosd_compat.c;fp=lustre%2Fosd-ldiskfs%2Fosd_compat.c;h=0e0e53d544aed28d686ebc33279653e28d4f2d20;hp=b7e6872bd02a81042f998288435d5361f26c10b9;hb=eee33ef0f07f3f2f5953953416d5d505088ae9a9;hpb=a1caf1f6af959ac7a12acddabe58539f180b9c96

diff --git a/lustre/osd-ldiskfs/osd_compat.c b/lustre/osd-ldiskfs/osd_compat.c
index b7e6872..0e0e53d 100644
--- a/lustre/osd-ldiskfs/osd_compat.c
+++ b/lustre/osd-ldiskfs/osd_compat.c
@@ -1371,3 +1371,37 @@ int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
 
 	RETURN(rc);
 }
+
+#ifndef HAVE_BIO_INTEGRITY_ENABLED
+bool bio_integrity_enabled(struct bio *bio)
+{
+# ifdef HAVE_BI_BDEV
+	struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+# else
+	struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
+# endif
+
+	if (bio_op(bio) != REQ_OP_READ && bio_op(bio) != REQ_OP_WRITE)
+		return false;
+
+	if (!bio_sectors(bio))
+		return false;
+
+	 /* Already protected? */
+	if (bio_integrity(bio))
+		return false;
+
+	if (bi == NULL)
+		return false;
+
+	if (bio_data_dir(bio) == READ && bi->profile->verify_fn != NULL &&
+	    (bi->flags & BLK_INTEGRITY_VERIFY))
+		return true;
+
+	if (bio_data_dir(bio) == WRITE && bi->profile->generate_fn != NULL &&
+	    (bi->flags & BLK_INTEGRITY_GENERATE))
+		return true;
+
+	return false;
+}
+#endif