LU-4931 ladvise: Add dontneed advice support for ladvise

[fs/lustre-release.git] / lustre / ofd / ofd_dev.c

diff --git a/lustre/ofd/ofd_dev.c b/lustre/ofd/ofd_dev.c
index cfa2baa..40cbf71 100644 (file)
--- a/lustre/ofd/ofd_dev.c
+++ b/lustre/ofd/ofd_dev.c
@@ -2191,6 +2191,7 @@ static int ofd_ladvise_hdl(struct tgt_session_info *tsi)
        struct lustre_handle     lockh = { 0 };
        __u64                    flags = 0;
        int                      i;
+       struct dt_object        *dob;
        ENTRY;
 
        CFS_FAIL_TIMEOUT(OBD_FAIL_OST_LADVISE_PAUSE, cfs_fail_val);
@@ -2237,6 +2238,7 @@ static int ofd_ladvise_hdl(struct tgt_session_info *tsi)
                RETURN(rc);
        }
        LASSERT(fo != NULL);
+       dob = ofd_object_child(fo);
 
        for (i = 0; i < num_advise; i++, ladvise++) {
                if (ladvise->lla_end <= ladvise->lla_start) {
@@ -2266,6 +2268,10 @@ static int ofd_ladvise_hdl(struct tgt_session_info *tsi)
                                ladvise->lla_end);
                        tgt_extent_unlock(&lockh, LCK_PR);
                        break;
+               case LU_LADVISE_DONTNEED:
+                       rc = dt_ladvise(env, dob, ladvise->lla_start,
+                                       ladvise->lla_end, LU_LADVISE_DONTNEED);
+                       break;
                }
                if (rc != 0)
                        break;