X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=lustre%2Flov%2Flov_obd.c;h=8aed98224d083544caa2f73ce95aa05317546151;hb=ab19dad1d77ca25856815aadf2cf10d3cf20d4a3;hp=20b14e57092c9de5080b0dc13d305028a54220bf;hpb=ef2d36d905720ef8f632299f9806a9bfaa372b86;p=fs%2Flustre-release.git

diff --git a/lustre/lov/lov_obd.c b/lustre/lov/lov_obd.c
index 20b14e5..8aed982 100644
--- a/lustre/lov/lov_obd.c
+++ b/lustre/lov/lov_obd.c
@@ -2276,8 +2276,29 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
         int cur_stripe = 0, cur_stripe_wrap = 0, stripe_count;
         unsigned int buffer_size = FIEMAP_BUFFER_SIZE;
 
-	if (!lsm_has_objects(lsm))
-                GOTO(out, rc = 0);
+	if (!lsm_has_objects(lsm)) {
+		if (lsm && lsm_is_released(lsm) && (fm_key->fiemap.fm_start <
+		    fm_key->oa.o_size)) {
+			/* released file, return a minimal FIEMAP if
+			 * request fits in file-size.
+			 */
+			fiemap->fm_mapped_extents = 1;
+			fiemap->fm_extents[0].fe_logical =
+						fm_key->fiemap.fm_start;
+			if (fm_key->fiemap.fm_start + fm_key->fiemap.fm_length <
+			    fm_key->oa.o_size)
+				fiemap->fm_extents[0].fe_length =
+						fm_key->fiemap.fm_length;
+			else
+				fiemap->fm_extents[0].fe_length =
+						fm_key->oa.o_size -
+						fm_key->fiemap.fm_start;
+			fiemap->fm_extents[0].fe_flags |=
+						(FIEMAP_EXTENT_UNKNOWN |
+						 FIEMAP_EXTENT_LAST);
+		}
+		GOTO(out, rc = 0);
+	}
 
         if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
                 buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
@@ -2475,7 +2496,8 @@ skip_last_device_calc:
         fiemap->fm_mapped_extents = current_extent;
 
 out:
-        OBD_FREE_LARGE(fm_local, buffer_size);
+	if (fm_local)
+		OBD_FREE_LARGE(fm_local, buffer_size);
         return rc;
 }