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Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/fs/dax.c b/fs/dax.c
index f32d7125ad0f..4becbf168b7f 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -447,6 +447,7 @@ bool dax_lock_mapping_entry(struct page *page)
xa_unlock_irq(&mapping->i_pages);
break;
} else if (IS_ERR(entry)) {
+ xa_unlock_irq(&mapping->i_pages);
WARN_ON_ONCE(PTR_ERR(entry) != -EAGAIN);
continue;
}
@@ -1120,21 +1121,12 @@ static vm_fault_t dax_load_hole(struct address_space *mapping, void *entry,
{
struct inode *inode = mapping->host;
unsigned long vaddr = vmf->address;
- vm_fault_t ret = VM_FAULT_NOPAGE;
- struct page *zero_page;
- pfn_t pfn;
-
- zero_page = ZERO_PAGE(0);
- if (unlikely(!zero_page)) {
- ret = VM_FAULT_OOM;
- goto out;
- }
+ pfn_t pfn = pfn_to_pfn_t(my_zero_pfn(vaddr));
+ vm_fault_t ret;
- pfn = page_to_pfn_t(zero_page);
dax_insert_mapping_entry(mapping, vmf, entry, pfn, RADIX_DAX_ZERO_PAGE,
false);
ret = vmf_insert_mixed(vmf->vma, vaddr, pfn);
-out:
trace_dax_load_hole(inode, vmf, ret);
return ret;
}