Commit 9ba6873e authored Sep 30, 2018 by Greg Kroah-Hartman

Merge tag 'libnvdimm-fixes2-4.19-rc6' of...

Merge tag 'libnvdimm-fixes2-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Dan writes:
  "filesystem-dax for 4.19-rc6

   Fix a deadlock in the new for 4.19 dax_lock_mapping_entry() routine."

* tag 'libnvdimm-fixes2-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: Fix deadlock in dax_lock_mapping_entry()

parents 291d0e5d f52afc93

fs/dax.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}

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