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21639: Make sure it is a mmap object before calling madvise
[arvados.git]
/
sdk
/
python
/
arvados
/
diskcache.py
diff --git
a/sdk/python/arvados/diskcache.py
b/sdk/python/arvados/diskcache.py
index 2d85c1126623af9974ce892a79dcb5fc5472ce69..1e885c15e2146ea9a0c2cf67a1fb333617729138 100644
(file)
--- a/
sdk/python/arvados/diskcache.py
+++ b/
sdk/python/arvados/diskcache.py
@@
-32,7
+32,7
@@
class DiskCacheSlot(object):
def get(self):
self.ready.wait()
- if
self.content is not None and len(self.content) > 0
:
+ if
isinstance(self.content, mmap.mmap)
:
self.content.madvise(mmap.MADV_WILLNEED)
return self.content