1:18 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git dm-5.8
head: 44eaf01834bc7414ab5298d097ed4e142a714420
commit: 21a33c39f41e5fc4e9ecfdf958190c9dc4a86b94 [47/54] dm zoned: remove 'dev'
argument from reclaim
config: parisc-randconfig-r024-20200519 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 21a33c39f41e5fc4e9ecfdf958190c9dc4a86b94
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
In file included from include/linux/mm.h:94,
from include/linux/bvec.h:13,
from include/linux/blk_types.h:10,
from include/linux/genhd.h:19,
from include/linux/blkdev.h:11,
from drivers/md/dm-zoned.h:12,
from drivers/md/dm-zoned-reclaim.c:8:
include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not
used [-Wunused-but-set-variable]
96 | pte_t old_pte; | ^~~~~~~
arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro
'set_pte_at'
322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0))
| ^~~~~~~~~~
include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear'
201 | pte_clear(mm, address, ptep);
| ^~~~~~~~~
include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not
used [-Wunused-but-set-variable]
96 | pte_t old_pte; | ^~~~~~~
include/asm-generic/pgtable.h:640:2: note: in expansion of macro 'set_pte_at'
640 | set_pte_at(vma->vm_mm, addr, ptep, pte);
| ^~~~~~~~~~
drivers/md/dm-zoned-reclaim.c: In function 'dmz_do_reclaim':
> drivers/md/dm-zoned-reclaim.c:350:18: warning: variable
'dev' set but not used [-Wunused-but-set-variable]
350 | struct dmz_dev
*dev;
| ^~~
vim +/dev +350 drivers/md/dm-zoned-reclaim.c
341
342 /*
343 * Find a candidate zone for reclaim and process it.
344 */
345 static int dmz_do_reclaim(struct dmz_reclaim *zrc)
346 {
347 struct dmz_metadata *zmd = zrc->metadata;
348 struct dm_zone *dzone;
349 struct dm_zone *rzone;
350 struct dmz_dev *dev;
351 unsigned long start;
352 int ret;
353
354 /* Get a data zone */
355 dzone = dmz_get_zone_for_reclaim(zmd);
356 if (IS_ERR(dzone))
357 return PTR_ERR(dzone);
358
359 start = jiffies;
360 dev = dmz_zone_to_dev(zmd, dzone);
361 if (dmz_is_rnd(dzone)) {
362 if (!dmz_weight(dzone)) {
363 /* Empty zone */
364 dmz_reclaim_empty(zrc, dzone);
365 ret = 0;
366 } else {
367 /*
368 * Reclaim the random data zone by moving its
369 * valid data blocks to a free sequential zone.
370 */
371 ret = dmz_reclaim_rnd_data(zrc, dzone);
372 }
373 rzone = dzone;
374
375 } else {
376 struct dm_zone *bzone = dzone->bzone;
377 sector_t chunk_block = 0;
378
379 ret = dmz_first_valid_block(zmd, bzone, &chunk_block);
380 if (ret < 0)
381 goto out;
382
383 if (ret == 0 || chunk_block >= dzone->wp_block) {
384 /*
385 * The buffer zone is empty or its valid blocks are
386 * after the data zone write pointer.
387 */
388 ret = dmz_reclaim_buf(zrc, dzone);
389 rzone = bzone;
390 } else {
391 /*
392 * Reclaim the data zone by merging it into the
393 * buffer zone so that the buffer zone itself can
394 * be later reclaimed.
395 */
396 ret = dmz_reclaim_seq_data(zrc, dzone);
397 rzone = dzone;
398 }
399 }
400 out:
401 if (ret) {
402 dmz_unlock_zone_reclaim(dzone);
403 return ret;
404 }
405
406 ret = dmz_flush_metadata(zrc->metadata);
407 if (ret) {
408 DMDEBUG("(%s): Metadata flush for zone %u failed, err %d\n",
409 dmz_metadata_label(zmd), rzone->id, ret);
410 return ret;
411 }
412
413 DMDEBUG("(%s): Reclaimed zone %u in %u ms",
414 dmz_metadata_label(zmd),
415 rzone->id, jiffies_to_msecs(jiffies - start));
416 return 0;
417 }
418
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org