LU-2241 symlink: fix off-by-one error when reading symlinks

[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_io.c

diff --git a/lustre/osd-ldiskfs/osd_io.c b/lustre/osd-ldiskfs/osd_io.c
index 0e19e80..77ece77 100644 (file)
--- a/lustre/osd-ldiskfs/osd_io.c
+++ b/lustre/osd-ldiskfs/osd_io.c
@@ -977,7 +977,7 @@ static ssize_t osd_read(const struct lu_env *env, struct dt_object *dt,
          * on-disk symlinks for ldiskfs.
          */
         if (S_ISLNK(dt->do_lu.lo_header->loh_attr) &&
-            (buf->lb_len <= sizeof(LDISKFS_I(inode)->i_data)))
+            (buf->lb_len < sizeof(LDISKFS_I(inode)->i_data)))
                 rc = osd_ldiskfs_readlink(inode, buf->lb_buf, buf->lb_len);
         else
                 rc = osd_ldiskfs_read(inode, buf->lb_buf, buf->lb_len, pos);