9p: Make the path walk logic more clear about when cloning is required
Cloning during a path component walk is only needed when the old fid used for the walk operation is the root fid. Make that clear by comparing the two fids rather than using an additional variable. Link: https://lkml.kernel.org/r/20220527000003.355812-4-tyhicks@linux.microsoft.com Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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