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smb3: missing inode locks in zero range
[ Upstream commit c919c16 ] smb3 fallocate zero range was not grabbing the inode or filemap_invalidate locks so could have race with pagemap reinstantiating the page. Cc: stable@vger.kernel.org Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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