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Message-ID: <202512102350.z1VCJH4s-lkp@intel.com>
Date: Wed, 10 Dec 2025 23:50:05 +0800
From: kernel test robot <lkp@...el.com>
To: Alistair Popple <apopple@...dia.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Björn Töpel <bjorn@...osinc.com>,
Jason Gunthorpe <jgg@...dia.com>
Subject: fs/dax.c:728:39: sparse: sparse: incorrect type in argument 1
(different base types)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0048fbb4011ec55c32d3148b2cda56433f273375
commit: d438d273417055241ebaaf1ba3be23459fc27cba mm: remove devmap related functions and page table bits
date: 5 months ago
config: s390-randconfig-r111-20251210 (https://download.01.org/0day-ci/archive/20251210/202512102350.z1VCJH4s-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251210/202512102350.z1VCJH4s-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/202512102350.z1VCJH4s-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
fs/dax.c: note: in included file (through include/trace/trace_events.h, include/trace/define_trace.h, include/trace/events/fs_dax.h):
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:10:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:10:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:10:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
include/trace/events/fs_dax.h:105:1: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long mask @@ got restricted vm_fault_t @@
include/trace/events/fs_dax.h:105:1: sparse: expected unsigned long mask
include/trace/events/fs_dax.h:105:1: sparse: got restricted vm_fault_t
>> fs/dax.c:728:39: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long v @@ got restricted vm_fault_t @@
fs/dax.c:728:39: sparse: expected unsigned long v
fs/dax.c:728:39: sparse: got restricted vm_fault_t
fs/dax.c:730:39: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long v @@ got restricted vm_fault_t @@
fs/dax.c:730:39: sparse: expected unsigned long v
fs/dax.c:730:39: sparse: got restricted vm_fault_t
fs/dax.c:734:31: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long v @@ got restricted vm_fault_t @@
fs/dax.c:734:31: sparse: expected unsigned long v
fs/dax.c:734:31: sparse: got restricted vm_fault_t
fs/dax.c:1370:41: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int result @@ got restricted vm_fault_t [assigned] [usertype] ret @@
fs/dax.c:1370:41: sparse: expected int result
fs/dax.c:1370:41: sparse: got restricted vm_fault_t [assigned] [usertype] ret
>> fs/dax.c:1878:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected int ret @@ got restricted vm_fault_t @@
fs/dax.c:1878:21: sparse: expected int ret
fs/dax.c:1878:21: sparse: got restricted vm_fault_t
fs/dax.c:1881:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected int ret @@ got restricted vm_fault_t @@
fs/dax.c:1881:21: sparse: expected int ret
fs/dax.c:1881:21: sparse: got restricted vm_fault_t
fs/dax.c:1884:16: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int ret @@
fs/dax.c:1884:16: sparse: expected restricted vm_fault_t
fs/dax.c:1884:16: sparse: got int ret
>> fs/dax.c:1902:46: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int result @@ got restricted vm_fault_t [usertype] ret @@
fs/dax.c:1902:46: sparse: expected int result
fs/dax.c:1902:46: sparse: got restricted vm_fault_t [usertype] ret
>> fs/dax.c:1918:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted vm_fault_t [assigned] [usertype] ret @@ got unsigned long @@
fs/dax.c:1918:21: sparse: expected restricted vm_fault_t [assigned] [usertype] ret
fs/dax.c:1918:21: sparse: got unsigned long
fs/dax.c:1961:51: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int result @@ got restricted vm_fault_t [assigned] [usertype] ret @@
fs/dax.c:1961:51: sparse: expected int result
fs/dax.c:1961:51: sparse: got restricted vm_fault_t [assigned] [usertype] ret
fs/dax.c:2138:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int result @@ got restricted vm_fault_t @@
fs/dax.c:2138:55: sparse: expected int result
fs/dax.c:2138:55: sparse: got restricted vm_fault_t
fs/dax.c:2156:58: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int result @@ got restricted vm_fault_t [assigned] [usertype] ret @@
fs/dax.c:2156:58: sparse: expected int result
fs/dax.c:2156:58: sparse: got restricted vm_fault_t [assigned] [usertype] ret
fs/dax.c:279:13: sparse: sparse: context imbalance in 'wait_entry_unlocked' - unexpected unlock
fs/dax.c:509:49: sparse: sparse: context imbalance in 'dax_lock_folio' - different lock contexts for basic block
fs/dax.c:576:17: sparse: sparse: context imbalance in 'dax_lock_mapping_entry' - different lock contexts for basic block
fs/dax.c:1142:9: sparse: sparse: context imbalance in 'dax_writeback_one' - unexpected unlock
vim +728 fs/dax.c
2f437effc689ef Shiyang Ruan 2022-06-03 621
ac401cc782429c Jan Kara 2016-05-12 622 /*
a77d19f46a37c0 Matthew Wilcox 2018-03-27 623 * Find page cache entry at given index. If it is a DAX entry, return it
a77d19f46a37c0 Matthew Wilcox 2018-03-27 624 * with the entry locked. If the page cache doesn't contain an entry at
a77d19f46a37c0 Matthew Wilcox 2018-03-27 625 * that index, add a locked empty entry.
ac401cc782429c Jan Kara 2016-05-12 626 *
3159f943aafdba Matthew Wilcox 2017-11-03 627 * When requesting an entry with size DAX_PMD, grab_mapping_entry() will
b15cd800682fca Matthew Wilcox 2018-03-29 628 * either return that locked entry or will return VM_FAULT_FALLBACK.
b15cd800682fca Matthew Wilcox 2018-03-29 629 * This will happen if there are any PTE entries within the PMD range
b15cd800682fca Matthew Wilcox 2018-03-29 630 * that we are requesting.
642261ac995e01 Ross Zwisler 2016-11-08 631 *
b15cd800682fca Matthew Wilcox 2018-03-29 632 * We always favor PTE entries over PMD entries. There isn't a flow where we
b15cd800682fca Matthew Wilcox 2018-03-29 633 * evict PTE entries in order to 'upgrade' them to a PMD entry. A PMD
b15cd800682fca Matthew Wilcox 2018-03-29 634 * insertion will fail if it finds any PTE entries already in the tree, and a
b15cd800682fca Matthew Wilcox 2018-03-29 635 * PTE insertion will cause an existing PMD entry to be unmapped and
b15cd800682fca Matthew Wilcox 2018-03-29 636 * downgraded to PTE entries. This happens for both PMD zero pages as
b15cd800682fca Matthew Wilcox 2018-03-29 637 * well as PMD empty entries.
642261ac995e01 Ross Zwisler 2016-11-08 638 *
b15cd800682fca Matthew Wilcox 2018-03-29 639 * The exception to this downgrade path is for PMD entries that have
b15cd800682fca Matthew Wilcox 2018-03-29 640 * real storage backing them. We will leave these real PMD entries in
b15cd800682fca Matthew Wilcox 2018-03-29 641 * the tree, and PTE writes will simply dirty the entire PMD entry.
642261ac995e01 Ross Zwisler 2016-11-08 642 *
ac401cc782429c Jan Kara 2016-05-12 643 * Note: Unlike filemap_fault() we don't honor FAULT_FLAG_RETRY flags. For
ac401cc782429c Jan Kara 2016-05-12 644 * persistent memory the benefit is doubtful. We can add that later if we can
ac401cc782429c Jan Kara 2016-05-12 645 * show it helps.
b15cd800682fca Matthew Wilcox 2018-03-29 646 *
b15cd800682fca Matthew Wilcox 2018-03-29 647 * On error, this function does not return an ERR_PTR. Instead it returns
b15cd800682fca Matthew Wilcox 2018-03-29 648 * a VM_FAULT code, encoded as an xarray internal entry. The ERR_PTR values
b15cd800682fca Matthew Wilcox 2018-03-29 649 * overlap with xarray value entries.
ac401cc782429c Jan Kara 2016-05-12 650 */
b15cd800682fca Matthew Wilcox 2018-03-29 651 static void *grab_mapping_entry(struct xa_state *xas,
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 652) struct address_space *mapping, unsigned int order)
ac401cc782429c Jan Kara 2016-05-12 653 {
b15cd800682fca Matthew Wilcox 2018-03-29 654 unsigned long index = xas->xa_index;
1a14e3779dd58c Jan Kara 2021-06-28 655 bool pmd_downgrade; /* splitting PMD entry into PTE entries? */
b15cd800682fca Matthew Wilcox 2018-03-29 656 void *entry;
ac401cc782429c Jan Kara 2016-05-12 657
b15cd800682fca Matthew Wilcox 2018-03-29 658 retry:
1a14e3779dd58c Jan Kara 2021-06-28 659 pmd_downgrade = false;
b15cd800682fca Matthew Wilcox 2018-03-29 660 xas_lock_irq(xas);
6be3e21d25ca2d Alistair Popple 2025-02-28 661 entry = get_next_unlocked_entry(xas, order);
642261ac995e01 Ross Zwisler 2016-11-08 662
b15cd800682fca Matthew Wilcox 2018-03-29 663 if (entry) {
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 664) if (dax_is_conflict(entry))
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 665) goto fallback;
0e40de0338d005 Matthew Wilcox 2018-11-16 666 if (!xa_is_value(entry)) {
49688e654e48ae Hao Li 2020-07-29 667 xas_set_err(xas, -EIO);
91d25ba8a6b0d8 Ross Zwisler 2017-09-06 668 goto out_unlock;
91d25ba8a6b0d8 Ross Zwisler 2017-09-06 669 }
91d25ba8a6b0d8 Ross Zwisler 2017-09-06 670
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 671) if (order == 0) {
91d25ba8a6b0d8 Ross Zwisler 2017-09-06 672 if (dax_is_pmd_entry(entry) &&
642261ac995e01 Ross Zwisler 2016-11-08 673 (dax_is_zero_entry(entry) ||
642261ac995e01 Ross Zwisler 2016-11-08 674 dax_is_empty_entry(entry))) {
642261ac995e01 Ross Zwisler 2016-11-08 675 pmd_downgrade = true;
642261ac995e01 Ross Zwisler 2016-11-08 676 }
642261ac995e01 Ross Zwisler 2016-11-08 677 }
642261ac995e01 Ross Zwisler 2016-11-08 678 }
642261ac995e01 Ross Zwisler 2016-11-08 679
642261ac995e01 Ross Zwisler 2016-11-08 680 if (pmd_downgrade) {
642261ac995e01 Ross Zwisler 2016-11-08 681 /*
642261ac995e01 Ross Zwisler 2016-11-08 682 * Make sure 'entry' remains valid while we drop
b93b016313b3ba Matthew Wilcox 2018-04-10 683 * the i_pages lock.
642261ac995e01 Ross Zwisler 2016-11-08 684 */
b15cd800682fca Matthew Wilcox 2018-03-29 685 dax_lock_entry(xas, entry);
642261ac995e01 Ross Zwisler 2016-11-08 686
642261ac995e01 Ross Zwisler 2016-11-08 687 /*
642261ac995e01 Ross Zwisler 2016-11-08 688 * Besides huge zero pages the only other thing that gets
642261ac995e01 Ross Zwisler 2016-11-08 689 * downgraded are empty entries which don't need to be
642261ac995e01 Ross Zwisler 2016-11-08 690 * unmapped.
642261ac995e01 Ross Zwisler 2016-11-08 691 */
b15cd800682fca Matthew Wilcox 2018-03-29 692 if (dax_is_zero_entry(entry)) {
b15cd800682fca Matthew Wilcox 2018-03-29 693 xas_unlock_irq(xas);
b15cd800682fca Matthew Wilcox 2018-03-29 694 unmap_mapping_pages(mapping,
b15cd800682fca Matthew Wilcox 2018-03-29 695 xas->xa_index & ~PG_PMD_COLOUR,
977fbdcd5986c9 Matthew Wilcox 2018-01-31 696 PG_PMD_NR, false);
b15cd800682fca Matthew Wilcox 2018-03-29 697 xas_reset(xas);
b15cd800682fca Matthew Wilcox 2018-03-29 698 xas_lock_irq(xas);
e11f8b7b6c4ea1 Ross Zwisler 2017-04-07 699 }
e11f8b7b6c4ea1 Ross Zwisler 2017-04-07 700
d2c997c0f14535 Dan Williams 2017-12-22 701 dax_disassociate_entry(entry, mapping, false);
b15cd800682fca Matthew Wilcox 2018-03-29 702 xas_store(xas, NULL); /* undo the PMD join */
698ab77aebffe0 Vivek Goyal 2021-04-28 703 dax_wake_entry(xas, entry, WAKE_ALL);
7f0e07fb028951 Matthew Wilcox (Oracle 2021-05-04 704) mapping->nrpages -= PG_PMD_NR;
b15cd800682fca Matthew Wilcox 2018-03-29 705 entry = NULL;
b15cd800682fca Matthew Wilcox 2018-03-29 706 xas_set(xas, index);
642261ac995e01 Ross Zwisler 2016-11-08 707 }
642261ac995e01 Ross Zwisler 2016-11-08 708
b15cd800682fca Matthew Wilcox 2018-03-29 709 if (entry) {
b15cd800682fca Matthew Wilcox 2018-03-29 710 dax_lock_entry(xas, entry);
b15cd800682fca Matthew Wilcox 2018-03-29 711 } else {
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 712) unsigned long flags = DAX_EMPTY;
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 713)
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 714) if (order > 0)
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 715) flags |= DAX_PMD;
23c84eb7837514 Matthew Wilcox (Oracle 2019-07-03 716) entry = dax_make_entry(pfn_to_pfn_t(0), flags);
b15cd800682fca Matthew Wilcox 2018-03-29 717 dax_lock_entry(xas, entry);
b15cd800682fca Matthew Wilcox 2018-03-29 718 if (xas_error(xas))
b15cd800682fca Matthew Wilcox 2018-03-29 719 goto out_unlock;
7f0e07fb028951 Matthew Wilcox (Oracle 2021-05-04 720) mapping->nrpages += 1UL << order;
ac401cc782429c Jan Kara 2016-05-12 721 }
b15cd800682fca Matthew Wilcox 2018-03-29 722
642261ac995e01 Ross Zwisler 2016-11-08 723 out_unlock:
b15cd800682fca Matthew Wilcox 2018-03-29 724 xas_unlock_irq(xas);
b15cd800682fca Matthew Wilcox 2018-03-29 725 if (xas_nomem(xas, mapping_gfp_mask(mapping) & ~__GFP_HIGHMEM))
b15cd800682fca Matthew Wilcox 2018-03-29 726 goto retry;
b15cd800682fca Matthew Wilcox 2018-03-29 727 if (xas->xa_node == XA_ERROR(-ENOMEM))
b15cd800682fca Matthew Wilcox 2018-03-29 @728 return xa_mk_internal(VM_FAULT_OOM);
b15cd800682fca Matthew Wilcox 2018-03-29 729 if (xas_error(xas))
b15cd800682fca Matthew Wilcox 2018-03-29 @730 return xa_mk_internal(VM_FAULT_SIGBUS);
e3ad61c64abcee Ross Zwisler 2016-11-08 731 return entry;
b15cd800682fca Matthew Wilcox 2018-03-29 732 fallback:
b15cd800682fca Matthew Wilcox 2018-03-29 733 xas_unlock_irq(xas);
b15cd800682fca Matthew Wilcox 2018-03-29 734 return xa_mk_internal(VM_FAULT_FALLBACK);
ac401cc782429c Jan Kara 2016-05-12 735 }
ac401cc782429c Jan Kara 2016-05-12 736
:::::: The code at line 728 was first introduced by commit
:::::: b15cd800682fcaf27048b05e42f5c208e4c756c0 dax: Convert page fault handlers to XArray
:::::: TO: Matthew Wilcox <willy@...radead.org>
:::::: CC: Matthew Wilcox <willy@...radead.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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