take LOOKUP_{ROOT,ROOT_GRABBED,JUMPED} out of LOOKUP_... space

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Separate field in nameidata (nd->state) holding the flags that
should be internal-only - that way we both get some spare bits
in LOOKUP_... and get simpler rules for nd->root lifetime rules,
since we can set the replacement of LOOKUP_ROOT (ND_ROOT_PRESET)
at the same time we set nd->root.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

...

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Al Viro 2021-04-01 22:03:41 -04:00

parent ffb37ca3bd

commit bcba1e7d0d

4 changed files with 34 additions and 33 deletions

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include/linux/namei.h

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