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(parent: 8eff733) | patch
namei: we never need more than MAXSYMLINKS entries in nd->stack
authorAl Viro <viro@zeniv.linux.org.uk>
Mon, 4 May 2015 01:30:27 +0000 (21:30 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Mon, 11 May 2015 02:20:08 +0000 (22:20 -0400)
commite269f2a73f92b40169c4229289587b901a00b244
tree82e84cfdbdca3aa200804e51aaaca78bf1757b9ctree | snapshot (tar.gz zip)
parent8eff733a45c98f17f254a313859f3b3ed9fc12dccommit | diff
namei: we never need more than MAXSYMLINKS entries in nd->stack

The only reason why we needed one more was that purely nested
MAXSYMLINKS symlinks could lead to path_init() using that many
entries in addition to nd->stack[0] which it left unused.

That can't happen now - path_init() starts with entry 0 (and
trailing_symlink() is called only when we'd already encountered
one symlink, so no more than MAXSYMLINKS-1 are left).

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