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Message-ID: <202509030434.fEPVFkG4-lkp@intel.com>
Date: Wed, 3 Sep 2025 04:31:36 +0800
From: kernel test robot <lkp@...el.com>
To: Alistair Popple <apopple@...dia.com>, linux-mm@...ck.org,
akpm@...ux-foundation.org
Cc: oe-kbuild-all@...ts.linux.dev, david@...hat.com, osalvador@...e.de,
jgg@...pe.ca, jhubbard@...dia.com, peterx@...hat.com,
linux-kernel@...r.kernel.org, dan.j.williams@...el.com,
Alistair Popple <apopple@...dia.com>
Subject: Re: [PATCH 2/2] mm/memremap: Remove unused get_dev_pagemap()
parameter
Hi Alistair,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/Alistair-Popple/mm-memremap-Remove-unused-get_dev_pagemap-parameter/20250902-131811
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20250902051421.162498-2-apopple%40nvidia.com
patch subject: [PATCH 2/2] mm/memremap: Remove unused get_dev_pagemap() parameter
config: i386-buildonly-randconfig-001-20250903 (https://download.01.org/0day-ci/archive/20250903/202509030434.fEPVFkG4-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250903/202509030434.fEPVFkG4-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509030434.fEPVFkG4-lkp@intel.com/
All errors (new ones prefixed by >>):
mm/memory-failure.c: In function 'memory_failure':
>> mm/memory-failure.c:2269:33: error: too many arguments to function 'get_dev_pagemap'
2269 | pgmap = get_dev_pagemap(pfn, NULL);
| ^~~~~~~~~~~~~~~
In file included from include/linux/mm.h:33,
from mm/memory-failure.c:40:
include/linux/memremap.h:236:35: note: declared here
236 | static inline struct dev_pagemap *get_dev_pagemap(unsigned long pfn)
| ^~~~~~~~~~~~~~~
vim +/get_dev_pagemap +2269 mm/memory-failure.c
1a3798dececa8c Jane Chu 2024-05-24 2218
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2219 /**
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2220 * memory_failure - Handle memory failure of a page.
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2221 * @pfn: Page Number of the corrupted page
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2222 * @flags: fine tune action taken
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2223 *
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2224 * This function is called by the low level machine check code
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2225 * of an architecture when it detects hardware memory corruption
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2226 * of a page. It tries its best to recover, which includes
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2227 * dropping pages, killing processes etc.
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2228 *
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2229 * The function is primarily of use for corruptions that
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2230 * happen outside the current execution context (e.g. when
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2231 * detected by a background scrubber)
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2232 *
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2233 * Must run in process context (e.g. a work queue) with interrupts
5885c6a62533cb Miaohe Lin 2023-07-11 2234 * enabled and no spinlocks held.
d1fe111fb62a1c luofei 2022-03-22 2235 *
d2734f044f8483 Shuai Xue 2025-03-12 2236 * Return:
d2734f044f8483 Shuai Xue 2025-03-12 2237 * 0 - success,
d2734f044f8483 Shuai Xue 2025-03-12 2238 * -ENXIO - memory not managed by the kernel
d2734f044f8483 Shuai Xue 2025-03-12 2239 * -EOPNOTSUPP - hwpoison_filter() filtered the error event,
d2734f044f8483 Shuai Xue 2025-03-12 2240 * -EHWPOISON - the page was already poisoned, potentially
d2734f044f8483 Shuai Xue 2025-03-12 2241 * kill process,
d2734f044f8483 Shuai Xue 2025-03-12 2242 * other negative values - failure.
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2243 */
83b57531c58f41 Eric W. Biederman 2017-07-09 2244 int memory_failure(unsigned long pfn, int flags)
6a46079cf57a7f Andi Kleen 2009-09-16 2245 {
6a46079cf57a7f Andi Kleen 2009-09-16 2246 struct page *p;
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2247) struct folio *folio;
6100e34b2526e1 Dan Williams 2018-07-13 2248 struct dev_pagemap *pgmap;
171936ddaf97e6 Tony Luck 2021-06-24 2249 int res = 0;
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2250 unsigned long page_flags;
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2251 bool retry = true;
405ce051236cc6 Naoya Horiguchi 2022-04-21 2252 int hugetlb = 0;
6a46079cf57a7f Andi Kleen 2009-09-16 2253
6a46079cf57a7f Andi Kleen 2009-09-16 2254 if (!sysctl_memory_failure_recovery)
83b57531c58f41 Eric W. Biederman 2017-07-09 2255 panic("Memory failure on page %lx", pfn);
6a46079cf57a7f Andi Kleen 2009-09-16 2256
03b122da74b22f Tony Luck 2021-10-26 2257 mutex_lock(&mf_mutex);
03b122da74b22f Tony Luck 2021-10-26 2258
67f22ba7750f94 zhenwei pi 2022-06-15 2259 if (!(flags & MF_SW_SIMULATED))
67f22ba7750f94 zhenwei pi 2022-06-15 2260 hw_memory_failure = true;
67f22ba7750f94 zhenwei pi 2022-06-15 2261
96c804a6ae8c59 David Hildenbrand 2019-10-18 2262 p = pfn_to_online_page(pfn);
96c804a6ae8c59 David Hildenbrand 2019-10-18 2263 if (!p) {
03b122da74b22f Tony Luck 2021-10-26 2264 res = arch_memory_failure(pfn, flags);
03b122da74b22f Tony Luck 2021-10-26 2265 if (res == 0)
03b122da74b22f Tony Luck 2021-10-26 2266 goto unlock_mutex;
03b122da74b22f Tony Luck 2021-10-26 2267
96c804a6ae8c59 David Hildenbrand 2019-10-18 2268 if (pfn_valid(pfn)) {
96c804a6ae8c59 David Hildenbrand 2019-10-18 @2269 pgmap = get_dev_pagemap(pfn, NULL);
d51b68469bc780 Miaohe Lin 2023-07-01 2270 put_ref_page(pfn, flags);
03b122da74b22f Tony Luck 2021-10-26 2271 if (pgmap) {
03b122da74b22f Tony Luck 2021-10-26 2272 res = memory_failure_dev_pagemap(pfn, flags,
96c804a6ae8c59 David Hildenbrand 2019-10-18 2273 pgmap);
03b122da74b22f Tony Luck 2021-10-26 2274 goto unlock_mutex;
03b122da74b22f Tony Luck 2021-10-26 2275 }
96c804a6ae8c59 David Hildenbrand 2019-10-18 2276 }
96f96763de26d6 Kefeng Wang 2022-07-26 2277 pr_err("%#lx: memory outside kernel control\n", pfn);
03b122da74b22f Tony Luck 2021-10-26 2278 res = -ENXIO;
03b122da74b22f Tony Luck 2021-10-26 2279 goto unlock_mutex;
6a46079cf57a7f Andi Kleen 2009-09-16 2280 }
6a46079cf57a7f Andi Kleen 2009-09-16 2281
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2282 try_again:
405ce051236cc6 Naoya Horiguchi 2022-04-21 2283 res = try_memory_failure_hugetlb(pfn, flags, &hugetlb);
405ce051236cc6 Naoya Horiguchi 2022-04-21 2284 if (hugetlb)
171936ddaf97e6 Tony Luck 2021-06-24 2285 goto unlock_mutex;
171936ddaf97e6 Tony Luck 2021-06-24 2286
6a46079cf57a7f Andi Kleen 2009-09-16 2287 if (TestSetPageHWPoison(p)) {
47af12bae17f99 Aili Yao 2021-06-24 2288 res = -EHWPOISON;
a3f5d80ea401ac Naoya Horiguchi 2021-06-28 2289 if (flags & MF_ACTION_REQUIRED)
a3f5d80ea401ac Naoya Horiguchi 2021-06-28 2290 res = kill_accessing_process(current, pfn, flags);
f361e2462e8ccc Naoya Horiguchi 2022-04-28 2291 if (flags & MF_COUNT_INCREASED)
f361e2462e8ccc Naoya Horiguchi 2022-04-28 2292 put_page(p);
b8b9488d50b715 Jane Chu 2024-05-24 2293 action_result(pfn, MF_MSG_ALREADY_POISONED, MF_FAILED);
171936ddaf97e6 Tony Luck 2021-06-24 2294 goto unlock_mutex;
6a46079cf57a7f Andi Kleen 2009-09-16 2295 }
6a46079cf57a7f Andi Kleen 2009-09-16 2296
6a46079cf57a7f Andi Kleen 2009-09-16 2297 /*
6a46079cf57a7f Andi Kleen 2009-09-16 2298 * We need/can do nothing about count=0 pages.
6a46079cf57a7f Andi Kleen 2009-09-16 2299 * 1) it's a free page, and therefore in safe hand:
9cf2819159d5a3 Miaohe Lin 2022-08-30 2300 * check_new_page() will be the gate keeper.
761ad8d7c7b548 Naoya Horiguchi 2017-07-10 2301 * 2) it's part of a non-compound high order page.
6a46079cf57a7f Andi Kleen 2009-09-16 2302 * Implies some kernel user: cannot stop them from
6a46079cf57a7f Andi Kleen 2009-09-16 2303 * R/W the page; let's pray that the page has been
6a46079cf57a7f Andi Kleen 2009-09-16 2304 * used and will be freed some time later.
6a46079cf57a7f Andi Kleen 2009-09-16 2305 * In fact it's dangerous to directly bump up page count from 0,
1c4c3b99c03d3e Jiang Biao 2018-08-21 2306 * that may make page_ref_freeze()/page_ref_unfreeze() mismatch.
6a46079cf57a7f Andi Kleen 2009-09-16 2307 */
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2308 if (!(flags & MF_COUNT_INCREASED)) {
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2309 res = get_hwpoison_page(p, flags);
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2310 if (!res) {
8d22ba1b74aa94 Wu Fengguang 2009-12-16 2311 if (is_free_buddy_page(p)) {
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2312 if (take_page_off_buddy(p)) {
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2313 page_ref_inc(p);
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2314 res = MF_RECOVERED;
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2315 } else {
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2316 /* We lost the race, try again */
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2317 if (retry) {
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2318 ClearPageHWPoison(p);
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2319 retry = false;
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2320 goto try_again;
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2321 }
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2322 res = MF_FAILED;
a8b2c2ce89d4e0 Oscar Salvador 2020-12-14 2323 }
b66d00dfebe79e Kefeng Wang 2022-10-21 2324 res = action_result(pfn, MF_MSG_BUDDY, res);
8d22ba1b74aa94 Wu Fengguang 2009-12-16 2325 } else {
b66d00dfebe79e Kefeng Wang 2022-10-21 2326 res = action_result(pfn, MF_MSG_KERNEL_HIGH_ORDER, MF_IGNORED);
8d22ba1b74aa94 Wu Fengguang 2009-12-16 2327 }
171936ddaf97e6 Tony Luck 2021-06-24 2328 goto unlock_mutex;
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2329 } else if (res < 0) {
b8b9488d50b715 Jane Chu 2024-05-24 2330 res = action_result(pfn, MF_MSG_GET_HWPOISON, MF_IGNORED);
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2331 goto unlock_mutex;
0ed950d1f28142 Naoya Horiguchi 2021-06-28 2332 }
6a46079cf57a7f Andi Kleen 2009-09-16 2333 }
6a46079cf57a7f Andi Kleen 2009-09-16 2334
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2335) folio = page_folio(p);
9b0ab153d76972 Jane Chu 2024-05-24 2336
9b0ab153d76972 Jane Chu 2024-05-24 2337 /* filter pages that are protected from hwpoison test by users */
9b0ab153d76972 Jane Chu 2024-05-24 2338 folio_lock(folio);
9b0ab153d76972 Jane Chu 2024-05-24 2339 if (hwpoison_filter(p)) {
9b0ab153d76972 Jane Chu 2024-05-24 2340 ClearPageHWPoison(p);
9b0ab153d76972 Jane Chu 2024-05-24 2341 folio_unlock(folio);
9b0ab153d76972 Jane Chu 2024-05-24 2342 folio_put(folio);
9b0ab153d76972 Jane Chu 2024-05-24 2343 res = -EOPNOTSUPP;
9b0ab153d76972 Jane Chu 2024-05-24 2344 goto unlock_mutex;
9b0ab153d76972 Jane Chu 2024-05-24 2345 }
9b0ab153d76972 Jane Chu 2024-05-24 2346 folio_unlock(folio);
9b0ab153d76972 Jane Chu 2024-05-24 2347
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2348) if (folio_test_large(folio)) {
eac96c3efdb593 Yang Shi 2021-10-28 2349 /*
eac96c3efdb593 Yang Shi 2021-10-28 2350 * The flag must be set after the refcount is bumped
eac96c3efdb593 Yang Shi 2021-10-28 2351 * otherwise it may race with THP split.
eac96c3efdb593 Yang Shi 2021-10-28 2352 * And the flag can't be set in get_hwpoison_page() since
eac96c3efdb593 Yang Shi 2021-10-28 2353 * it is called by soft offline too and it is just called
5885c6a62533cb Miaohe Lin 2023-07-11 2354 * for !MF_COUNT_INCREASED. So here seems to be the best
eac96c3efdb593 Yang Shi 2021-10-28 2355 * place.
eac96c3efdb593 Yang Shi 2021-10-28 2356 *
eac96c3efdb593 Yang Shi 2021-10-28 2357 * Don't need care about the above error handling paths for
eac96c3efdb593 Yang Shi 2021-10-28 2358 * get_hwpoison_page() since they handle either free page
eac96c3efdb593 Yang Shi 2021-10-28 2359 * or unhandlable page. The refcount is bumped iff the
eac96c3efdb593 Yang Shi 2021-10-28 2360 * page is a valid handlable page.
eac96c3efdb593 Yang Shi 2021-10-28 2361 */
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2362) folio_set_has_hwpoisoned(folio);
1a3798dececa8c Jane Chu 2024-05-24 2363 if (try_to_split_thp_page(p, false) < 0) {
1a3798dececa8c Jane Chu 2024-05-24 2364 res = -EHWPOISON;
1a3798dececa8c Jane Chu 2024-05-24 2365 kill_procs_now(p, pfn, flags, folio);
1a3798dececa8c Jane Chu 2024-05-24 2366 put_page(p);
1a3798dececa8c Jane Chu 2024-05-24 2367 action_result(pfn, MF_MSG_UNSPLIT_THP, MF_FAILED);
171936ddaf97e6 Tony Luck 2021-06-24 2368 goto unlock_mutex;
5d1fd5dc877bc1 Naoya Horiguchi 2020-10-15 2369 }
415c64c1453aa2 Naoya Horiguchi 2015-06-24 2370 VM_BUG_ON_PAGE(!page_count(p), p);
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2371) folio = page_folio(p);
415c64c1453aa2 Naoya Horiguchi 2015-06-24 2372 }
415c64c1453aa2 Naoya Horiguchi 2015-06-24 2373
e43c3afb367112 Wu Fengguang 2009-09-29 2374 /*
e43c3afb367112 Wu Fengguang 2009-09-29 2375 * We ignore non-LRU pages for good reasons.
e43c3afb367112 Wu Fengguang 2009-09-29 2376 * - PG_locked is only well defined for LRU pages and a few others
48c935ad88f5be Kirill A. Shutemov 2016-01-15 2377 * - to avoid races with __SetPageLocked()
e43c3afb367112 Wu Fengguang 2009-09-29 2378 * - to avoid races with __SetPageSlab*() (and more non-atomic ops)
e43c3afb367112 Wu Fengguang 2009-09-29 2379 * The check (unnecessarily) ignores LRU pages being isolated and
e43c3afb367112 Wu Fengguang 2009-09-29 2380 * walked by the page reclaim code, however that's not a big loss.
e43c3afb367112 Wu Fengguang 2009-09-29 2381 */
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2382) shake_folio(folio);
e43c3afb367112 Wu Fengguang 2009-09-29 2383
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2384) folio_lock(folio);
847ce401df392b Wu Fengguang 2009-12-16 2385
f37d4298aa7f8b Andi Kleen 2014-08-06 2386 /*
75ee64b3c9a969 Miaohe Lin 2022-03-22 2387 * We're only intended to deal with the non-Compound page here.
8a78882dac1c8c Miaohe Lin 2024-07-08 2388 * The page cannot become compound pages again as folio has been
8a78882dac1c8c Miaohe Lin 2024-07-08 2389 * splited and extra refcnt is held.
f37d4298aa7f8b Andi Kleen 2014-08-06 2390 */
8a78882dac1c8c Miaohe Lin 2024-07-08 2391 WARN_ON(folio_test_large(folio));
f37d4298aa7f8b Andi Kleen 2014-08-06 2392
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2393 /*
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2394 * We use page flags to determine what action should be taken, but
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2395 * the flags can be modified by the error containment action. One
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2396 * example is an mlocked page, where PG_mlocked is cleared by
4d8f7418e8ba36 David Hildenbrand 2023-12-20 2397 * folio_remove_rmap_*() in try_to_unmap_one(). So to determine page
4d8f7418e8ba36 David Hildenbrand 2023-12-20 2398 * status correctly, we save a copy of the page flags at this time.
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2399 */
378d05afc7b1bd Matthew Wilcox (Oracle 2025-08-05 2400) page_flags = folio->flags.f;
524fca1e7356f8 Naoya Horiguchi 2013-02-22 2401
e8675d291ac007 yangerkun 2021-06-15 2402 /*
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2403) * __munlock_folio() may clear a writeback folio's LRU flag without
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2404) * the folio lock. We need to wait for writeback completion for this
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2405) * folio or it may trigger a vfs BUG while evicting inode.
e8675d291ac007 yangerkun 2021-06-15 2406 */
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2407) if (!folio_test_lru(folio) && !folio_test_writeback(folio))
0bc1f8b0682caa Chen Yucong 2014-07-02 2408 goto identify_page_state;
0bc1f8b0682caa Chen Yucong 2014-07-02 2409
6edd6cc66201e0 Naoya Horiguchi 2014-06-04 2410 /*
6edd6cc66201e0 Naoya Horiguchi 2014-06-04 2411 * It's very difficult to mess with pages currently under IO
6edd6cc66201e0 Naoya Horiguchi 2014-06-04 2412 * and in many cases impossible, so we just avoid it here.
6edd6cc66201e0 Naoya Horiguchi 2014-06-04 2413 */
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2414) folio_wait_writeback(folio);
6a46079cf57a7f Andi Kleen 2009-09-16 2415
6a46079cf57a7f Andi Kleen 2009-09-16 2416 /*
6a46079cf57a7f Andi Kleen 2009-09-16 2417 * Now take care of user space mappings.
6ffcd825e7d041 Matthew Wilcox (Oracle 2022-06-28 2418) * Abort on fail: __filemap_remove_folio() assumes unmapped page.
6a46079cf57a7f Andi Kleen 2009-09-16 2419 */
03468a0f52893b Matthew Wilcox (Oracle 2024-04-12 2420) if (!hwpoison_user_mappings(folio, p, pfn, flags)) {
b8b9488d50b715 Jane Chu 2024-05-24 2421 res = action_result(pfn, MF_MSG_UNMAP_FAILED, MF_FAILED);
171936ddaf97e6 Tony Luck 2021-06-24 2422 goto unlock_page;
1668bfd5be9d8a Wu Fengguang 2009-12-16 2423 }
6a46079cf57a7f Andi Kleen 2009-09-16 2424
6a46079cf57a7f Andi Kleen 2009-09-16 2425 /*
6a46079cf57a7f Andi Kleen 2009-09-16 2426 * Torn down by someone else?
6a46079cf57a7f Andi Kleen 2009-09-16 2427 */
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2428) if (folio_test_lru(folio) && !folio_test_swapcache(folio) &&
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2429) folio->mapping == NULL) {
b66d00dfebe79e Kefeng Wang 2022-10-21 2430 res = action_result(pfn, MF_MSG_TRUNCATED_LRU, MF_IGNORED);
171936ddaf97e6 Tony Luck 2021-06-24 2431 goto unlock_page;
6a46079cf57a7f Andi Kleen 2009-09-16 2432 }
6a46079cf57a7f Andi Kleen 2009-09-16 2433
0bc1f8b0682caa Chen Yucong 2014-07-02 2434 identify_page_state:
0348d2ebec9b00 Naoya Horiguchi 2017-07-10 2435 res = identify_page_state(pfn, p, page_flags);
ea6d0630100b28 Naoya Horiguchi 2021-06-24 2436 mutex_unlock(&mf_mutex);
ea6d0630100b28 Naoya Horiguchi 2021-06-24 2437 return res;
171936ddaf97e6 Tony Luck 2021-06-24 2438 unlock_page:
5dba5c356ab3bb Matthew Wilcox (Oracle 2024-04-12 2439) folio_unlock(folio);
171936ddaf97e6 Tony Luck 2021-06-24 2440 unlock_mutex:
171936ddaf97e6 Tony Luck 2021-06-24 2441 mutex_unlock(&mf_mutex);
6a46079cf57a7f Andi Kleen 2009-09-16 2442 return res;
6a46079cf57a7f Andi Kleen 2009-09-16 2443 }
cd42f4a3b2b1c4 Tony Luck 2011-12-15 2444 EXPORT_SYMBOL_GPL(memory_failure);
847ce401df392b Wu Fengguang 2009-12-16 2445
--
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