Remove useless lstat() call in pg_rewind. This is duplicative of an lstat that was just done by the calling function (traverse_datadir), besides which we weren't really doing anything with the results. There's not much point in checking to see if someone removed the file since the previous lstat, since the FILE_ACTION_REMOVE code would have to deal with missing-file cases anyway. Moreover, the "exists = false" assignment was a dead store; nothing was done with that value later.
A syscall saved is a syscall earned, so back-patch to 9.5 where this code was introduced. Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/666e9a90f09a1ab89959774273597764e6e0f9ad Modified Files -------------- src/bin/pg_rewind/filemap.c | 12 ------------ 1 file changed, 12 deletions(-)
