Benjamin Coddington
6c023d86b3
NFS: Don't use page_file_mapping after removing the page
...
[ Upstream commit d2ceb7e57086750ea6198a31fd942d98099a0786 ]
If nfs_page_async_flush() removes the page from the mapping, then we can't
use page_file_mapping() on it as nfs_updatepate() is wont to do when
receiving an error. Instead, push the mapping to the stack before the page
is possibly truncated.
Fixes: 8fc75bed96bb ("NFS: Fix up return value on fatal errors in nfs_page_async_flush()")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com >
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com >
Signed-off-by: Sasha Levin <sashal@kernel.org >
2019-03-23 20:09:45 +01:00
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