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Move more of v4root_set into a helper function.
Also, check the return value from strdup. (We don't really handle the
error well yet--we'll end up giving negative replies to export upcalls
when we should be giving the kernel exports, resulting in spurious
-ENOENTs or -ESTALE's--but that's better than crashing with a NULL
dereference.)
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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We're adding new entries, but not deleting them, so we don't need to do
the usual double-counter trick here.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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Since we're adding new exports as we traverse the export list, it's
possible we may find ourselves revisiting an export we just added. It's
harmless to reprocess those exports, as we're currently doing. But it's
also pointless.
(Actually, the current code appears to always add new export entries at
the head of each list, so we shouldn't hit this case. It still may be a
good idea to keep this check, though, as insulation against future
changes to that data structure.)
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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Create v4root exports for each directory that is a parent of an explicit
export. Give each the minimal security required to traverse to any of
its children.
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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