Al Viro 1a16dbaf79 Document d_splice_alias() calling conventions for ->lookup() users. ...

Short version: it does the right thing when given NULL or ERR_PTR(...)
and its calling conventions are chosen to have minimal PITA when
used in ->lookup() instances.

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

2018-10-10 16:52:37 -04:00

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