David Newall wrote:
Philipp Marek wrote:
AFAIK pivot_root() changes the / mapping for *all* processes, no?
The manual page is confusing. It even admits to being "intentionally
vague". However the goal seems clear:
"pivot_root() moves the root file system of the current process to
the directory put_old and makes new_root the new root file system of
the current process"
-- man 2 pivot_root
There's an argument that pivot_root could be improved...
And very little argument that the man page could be improved, perhaps.
However, there is no question that pivot_root is intended to have
breadth for more than one process.
Keeping this functionality sounds a little like putting a bow tie and
tux on your bug and calling it a "feature." Not all bugs are useless for
legitimate purposes, but it doesn't make them safe. It appears to be a
sort-of way to get per-process bind mounts.
--
bill davidsen <[email protected]>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
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