vfs: don't BUG_ON() if following a /proc fd pseudo-symlink results in a symlink
It's "normal" - it can happen if the file descriptor you followed was opened with O_NOFOLLOW. Reported-by: Dave Jones <davej@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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