bcachefs: Use trylock in bch2_prt_backtrace()

Easy workaround for a lockdep splat - and since bch2_prt_backtrace() is
only used in debug code this is fine.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-01-25 10:18:32 -05:00
commit 3e57db65cd