Page 96 - slides.dvi

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Operating
can
extend
allow
Systems
Directory
to
Hierarchy
Solutions:
Problem:
Problem:
—
have
reference
shared
good,
Directories
cycles.
back-references
Name
directed
.
dangling
counts.
.
but
multiple
(but
still
acyclic
sent
Space
aliases
mail
B
subdirectories
only
references
require
for
C
Ann
A
graph
(III)
one
and
the
D
E
files.
variable
(DAG)
name
same
Bob
F
size
per
thing
G
file.
structure:
java
H
records);
I
Yao
or
J

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