tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git staging-next head: 26a5e9b834a647b9d4dfbeef8b42f201cb3293ae commit: 85b6542bbade42935386661cb45d90c4e13766b7 [575/620] staging: lustre: llite: remove redundant lookup in dump_pgcache smatch warnings: drivers/staging/lustre/lustre/llite/vvp_dev.c:487 vvp_pgcache_find() warn: always true condition '(vmpage->index <= 4294967295) => (0-u32max <= u32max)' vim +487 drivers/staging/lustre/lustre/llite/vvp_dev.c 461 462 static struct page *vvp_pgcache_find(const struct lu_env *env, 463 struct lu_device *dev, 464 struct cl_object **clobp, loff_t *pos) 465 { 466 struct cl_object *clob; 467 struct lu_site *site; 468 struct vvp_pgcache_id id; 469 470 site = dev->ld_site; 471 vvp_pgcache_id_unpack(*pos, &id); 472 473 while (1) { 474 if (id.vpi_bucket >= CFS_HASH_NHLIST(site->ls_obj_hash)) 475 return NULL; 476 clob = vvp_pgcache_obj(env, dev, &id); 477 if (clob) { 478 struct inode *inode = vvp_object_inode(clob); 479 struct page *vmpage; 480 int nr; 481 482 nr = find_get_pages_contig(inode->i_mapping, 483 id.vpi_index, 1, &vmpage); 484 if (nr > 0) { 485 id.vpi_index = vmpage->index; 486 /* Cant support over 16T file */ > 487 if (vmpage->index <= 0xffffffff) { 488 *clobp = clob; 489 *pos = vvp_pgcache_id_pack(&id); 490 return vmpage; 491 } 492 put_page(vmpage); 493 } 494 495 lu_object_ref_del(&clob->co_lu, "dump", current); 496 cl_object_put(env, clob); 497 } 498 /* to the next object. */ 499 ++id.vpi_depth; 500 id.vpi_depth &= 0xf; 501 if (id.vpi_depth == 0 && ++id.vpi_bucket == 0) 502 return NULL; 503 id.vpi_index = 0; 504 } 505 } 506 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
